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Rheco Warm Air Heaters

RHeco Propane 25Kw Modulating Unit Heater

RHeco Propane 35kW Modulating Unit Heater

RHeco Propane 50kW Modulating Unit Heater

RHeco Propane 75kW Modulating Unit Heater

RHeco Propane 100kW Modulating Unit Heater

RHeco Natural Gas 25kW Modulating Unit Heater

RHeco Natural Gas 35kW Modulating Unit Heater

RHeco Natural Gas 50kW Modulating Unit Heater

RHeco Natural Gas 75kW Modulating Unit Heater

RHeco Natural Gas 100kW Modulating Unit Heater

RHeco Propane 25kW Condensing Unit Heater

RHeco Propane 35kW Condensing Unit Heater

RHeco Propane 50kW Condensing Unit Heater

RHeco Propane 75kW Condensing Unit Heater

RHeco Propane 100kW Condensing Unit Heater

RHeco Natural Gas 25kW Condensing Unit Heater

RHeco Natural Gas 35kW Condensing Unit Heater

RHeco Natural Gas 50kW Condensing Unit Heater

RHeco Natural Gas 75kW Condensing Unit Heater

RHeco Natural Gas 100kW Condensing Unit Heater


Out Of Stock

Out of Stock

Lead time

10 Day manufacturer's lead time.

SKU

SKU: ULSA025-EC-P-2

Out Of Stock

Out of Stock

Lead time

10 Day manufacturer's lead time.

SKU

SKU: ULSA035-EC-P-2

Out Of Stock

Out of Stock

Lead time

10 Day manufacturer's lead time.

SKU

SKU: ULSA050-EC-P-2

Out Of Stock

Out of Stock

Lead time

10 Day manufacturer's lead time.

SKU

SKU: ULSA075-EC-P-2

Out Of Stock

Out of Stock

Lead time

10 Day manufacturer's lead time.

SKU

SKU: ULSA100-EC-P-2

Out Of Stock

Out of Stock

Lead time

0 Day manufacturer's lead time.

SKU

SKU: ULSA025-EC-2

Out Of Stock

Out of Stock

Lead time

0 Day manufacturer's lead time.

SKU

SKU: ULSA035-EC-2

Out Of Stock

Out of Stock

Lead time

0 Day manufacturer's lead time.

SKU

SKU: ULSA050-EC-2

In Stock

In Stock

1 Day manufacturer's lead time.

SKU

SKU: ULSA075-EC-2

In Stock

In Stock

1 Day manufacturer's lead time.

SKU

SKU: ULSA100-EC-2

Out Of Stock

Out of Stock

Lead time

10 Day manufacturer's lead time.

SKU

SKU: ULSA025-P-2

Out Of Stock

Out of Stock

Lead time

10 Day manufacturer's lead time.

SKU

SKU: ULSA035-P-2

Out Of Stock

Out of Stock

Lead time

10 Day manufacturer's lead time.

SKU

SKU: ULSA050-P-2

Out Of Stock

Out of Stock

Lead time

10 Day manufacturer's lead time.

SKU

SKU: ULSA075-P-2

Out Of Stock

Out of Stock

Lead time

10 Day manufacturer's lead time.

SKU

SKU: ULSA100-P-2

Out Of Stock

Out of Stock

Lead time

10 Day manufacturer's lead time.

SKU

SKU: ULSA025-2

Out Of Stock

Out of Stock

Lead time

14 Day manufacturer's lead time.

SKU

SKU: ULSA035-2

Out Of Stock

Out of Stock

Lead time

10 Day manufacturer's lead time.

SKU

SKU: ULSA050-2

In Stock

In Stock

1 Day manufacturer's lead time.

SKU

SKU: ULSA075-2

Out Of Stock

Out of Stock

Lead time

10 Day manufacturer's lead time.

SKU

SKU: ULSA100-2

Stock levels vary

Stock levels vary

Lead time

0 to 14 Day manufacturer's lead time.

?

For more precise information, please select a Fuel type, Kw, and Range type below.

Our condensing low NOX ultra-efficient RHeco range of suspended gas fired unit heaters are ideal for new carbon low buildings, or organisations looking to provide even heat whilst reducing emissions. The RHeco range is an economical choice and can repay the extra initial cost in fuel savings in 2-4 years depending on usage.

Our condensing low NOX ultra-efficient RHeco range of suspended gas fired unit heaters are ideal for new carbon low buildings, or organisations looking to provide even heat whilst reducing emissions. The RHeco range is an economical choice and can repay the extra initial cost in fuel savings in 2-4 years depending on usage.

Our condensing low NOX ultra-efficient RHeco range of suspended gas fired unit heaters are ideal for new carbon low buildings, or organisations looking to provide even heat whilst reducing emissions. The RHeco range is an economical choice and can repay the extra initial cost in fuel savings in 2-4 years depending on usage.

Our condensing low NOX ultra-efficient RHeco range of suspended gas fired unit heaters are ideal for new carbon low buildings, or organisations looking to provide even heat whilst reducing emissions. The RHeco range is an economical choice and can repay the extra initial cost in fuel savings in 2-4 years depending on usage.

Our condensing low NOX ultra-efficient RHeco range of suspended gas fired unit heaters are ideal for new carbon low buildings, or organisations looking to provide even heat whilst reducing emissions. The RHeco range is an economical choice and can repay the extra initial cost in fuel savings in 2-4 years depending on usage.

Our condensing low NOX ultra-efficient RHeco range of suspended gas fired unit heaters are ideal for new carbon low buildings, or organisations looking to provide even heat whilst reducing emissions. The RHeco range is an economical choice and can repay the extra initial cost in fuel savings in 2-4 years depending on usage.

Our condensing low NOX ultra-efficient RHeco range of suspended gas fired unit heaters are ideal for new carbon low buildings, or organisations looking to provide even heat whilst reducing emissions. The RHeco range is an economical choice and can repay the extra initial cost in fuel savings in 2-4 years depending on usage.

Our condensing low NOX ultra-efficient RHeco range of suspended gas fired unit heaters are ideal for new carbon low buildings, or organisations looking to provide even heat whilst reducing emissions. The RHeco range is an economical choice and can repay the extra initial cost in fuel savings in 2-4 years depending on usage.

Our condensing low NOX ultra-efficient RHeco range of suspended gas fired unit heaters are ideal for new carbon low buildings, or organisations looking to provide even heat whilst reducing emissions. The RHeco range is an economical choice and can repay the extra initial cost in fuel savings in 2-4 years depending on usage.

Our condensing low NOX ultra-efficient RHeco range of suspended gas fired unit heaters are ideal for new carbon low buildings, or organisations looking to provide even heat whilst reducing emissions. The RHeco range is an economical choice and can repay the extra initial cost in fuel savings in 2-4 years depending on usage.

Our condensing low NOX ultra-efficient RHeco range of suspended gas fired unit heaters are ideal for new carbon low buildings, or organisations looking to provide even heat whilst reducing emissions. The RHeco range is an economical choice and can repay the extra initial cost in fuel savings in 2-4 years depending on usage.

Our condensing low NOX ultra-efficient RHeco range of suspended gas fired unit heaters are ideal for new carbon low buildings, or organisations looking to provide even heat whilst reducing emissions. The RHeco range is an economical choice and can repay the extra initial cost in fuel savings in 2-4 years depending on usage.

Our condensing low NOX ultra-efficient RHeco range of suspended gas fired unit heaters are ideal for new carbon low buildings, or organisations looking to provide even heat whilst reducing emissions. The RHeco range is an economical choice and can repay the extra initial cost in fuel savings in 2-4 years depending on usage.

Our condensing low NOX ultra-efficient RHeco range of suspended gas fired unit heaters are ideal for new carbon low buildings, or organisations looking to provide even heat whilst reducing emissions. The RHeco range is an economical choice and can repay the extra initial cost in fuel savings in 2-4 years depending on usage.

Our condensing low NOX ultra-efficient RHeco range of suspended gas fired unit heaters are ideal for new carbon low buildings, or organisations looking to provide even heat whilst reducing emissions. The RHeco range is an economical choice and can repay the extra initial cost in fuel savings in 2-4 years depending on usage.

Our condensing low NOX ultra-efficient RHeco range of suspended gas fired unit heaters are ideal for new carbon low buildings, or organisations looking to provide even heat whilst reducing emissions. The RHeco range is an economical choice and can repay the extra initial cost in fuel savings in 2-4 years depending on usage.

Our condensing low NOX ultra-efficient RHeco range of suspended gas fired unit heaters are ideal for new carbon low buildings, or organisations looking to provide even heat whilst reducing emissions. The RHeco range is an economical choice and can repay the extra initial cost in fuel savings in 2-4 years depending on usage.

Our condensing low NOX ultra-efficient RHeco range of suspended gas fired unit heaters are ideal for new carbon low buildings, or organisations looking to provide even heat whilst reducing emissions. The RHeco range is an economical choice and can repay the extra initial cost in fuel savings in 2-4 years depending on usage.

Our condensing low NOX ultra-efficient RHeco range of suspended gas fired unit heaters are ideal for new carbon low buildings, or organisations looking to provide even heat whilst reducing emissions. The RHeco range is an economical choice and can repay the extra initial cost in fuel savings in 2-4 years depending on usage.

Our condensing low NOX ultra-efficient RHeco range of suspended gas fired unit heaters are ideal for new carbon low buildings, or organisations looking to provide even heat whilst reducing emissions. The RHeco range is an economical choice and can repay the extra initial cost in fuel savings in 2-4 years depending on usage.

Our condensing low NOX ultra-efficient RHeco range of suspended gas fired unit heaters are ideal for new carbon low buildings, or organisations looking to provide even heat whilst reducing emissions. The RHeco range is an economical choice and can repay the extra initial cost in fuel savings in 2-4 years depending on usage.

£5,324.11
£5,575.84
£6,089.55
£7,260.81
£8,424.89
£5,324.11
£5,575.84
£6,089.55
£7,260.81
£8,424.89
£4,810.40
£5,091.91
£5,031.45
£6,425.81
£7,103.91
£4,810.40
£5,091.91
£5,283.02
£6,747.10
£7,459.11
£4,810.40

PLEASE NOTE:
Have a Nortek trade account? Ensure your account is connected and log in to see personalised discounted prices. Contact us.

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Product Description

Continuing the tradition of manufacturing high efficiency warm air heating solutions with our highly efficient RHeco range of energy saving condensing gas fired unit heaters. In times of rapidly increasing energy costs, reducing energy consumption makes sense both financially and environmentally since this also significantly reduces CO2 emissions. The units exceed the requirements of current Building Regulations L2, with thermal efficiencies up to 109% to provide exceptional levels of seasonal efficiency. Transition to sustainable heating solutions today with RHeco.

Model range:
• The RHeco condensing units consisting of five models is available with heat outputs ranging from 25kW to 95kW
• For use on natural gas or propane
• Now available with (optional) modulating supply air fan

Features and Benefits

• Thermal efficiency of 100% at full load and up to 109% at minimum load for lower operational costs
• Pull through” technology ensures no gas can escape into the heated space
• Powerful air throw means improved heat distribution
• Substantially reduced CO2 and NOx emissions

Technical Specification

Technical Information

Product dimensions:

Technical Information

Brochures + Manuals

Installation ManualProduct GuideWiring Diagram

Installation Manual

English

OP207.1 ULSA-2 Vertical Louvre Installation Manual D301646 Oct 2024 rev 0



Language: English
Production status: current-production
Download

Reznor, ULSA, EN, 2021-11, D301098 issue 1



Language: English
Production status: current-production
Download

Reznor, ULSA, Installation Manual EC, EN 2018-06, D301098



Language: English
Production status: current-production
Download

ULSA Installation Manual



Language: English
Production status: current-production
Download

Product Guide

English

Reznor, RHeco, Sales Brochure, EN 2020-01, GB-REZ-RHE-005-0120



Language: English
Production status: current-production
Download

Wiring Diagram

English

Wiring Diagram for Rheco unit heater



Language: English
Production status: current-production
Download

Product Description

Continuing the tradition of manufacturing high efficiency warm air heating solutions with our highly efficient RHeco range of energy saving condensing gas fired unit heaters. In times of rapidly increasing energy costs, reducing energy consumption makes sense both financially and environmentally since this also significantly reduces CO2 emissions. The units exceed the requirements of current Building Regulations L2, with thermal efficiencies up to 109% to provide exceptional levels of seasonal efficiency. Transition to sustainable heating solutions today with RHeco.

Model range:
• The RHeco condensing units consisting of five models is available with heat outputs ranging from 25kW to 95kW
• For use on natural gas or propane
• Now available with (optional) modulating supply air fan

Features and Benefits

• Thermal efficiency of 100% at full load and up to 109% at minimum load for lower operational costs
• Pull through” technology ensures no gas can escape into the heated space
• Powerful air throw means improved heat distribution
• Substantially reduced CO2 and NOx emissions

Technical Specification

Technical Information

Product dimensions:

Technical Information

Brochures + Manuals

Installation ManualProduct GuideWiring Diagram

Installation Manual

English

OP207.1 ULSA-2 Vertical Louvre Installation Manual D301646 Oct 2024 rev 0



Language: English
Production status: current-production
Download

Reznor, ULSA, EN, 2021-11, D301098 issue 1



Language: English
Production status: current-production
Download

Reznor, ULSA, Installation Manual EC, EN 2018-06, D301098



Language: English
Production status: current-production
Download

ULSA Installation Manual



Language: English
Production status: current-production
Download

Product Guide

English

Reznor, RHeco, Sales Brochure, EN 2020-01, GB-REZ-RHE-005-0120



Language: English
Production status: current-production
Download

Wiring Diagram

English

Wiring Diagram for Rheco unit heater



Language: English
Production status: current-production
Download

Product Description

Continuing the tradition of manufacturing high efficiency warm air heating solutions with our highly efficient RHeco range of energy saving condensing gas fired unit heaters. In times of rapidly increasing energy costs, reducing energy consumption makes sense both financially and environmentally since this also significantly reduces CO2 emissions. The units exceed the requirements of current Building Regulations L2, with thermal efficiencies up to 109% to provide exceptional levels of seasonal efficiency. Transition to sustainable heating solutions today with RHeco.

Model range:
• The RHeco condensing units consisting of five models is available with heat outputs ranging from 25kW to 95kW
• For use on natural gas or propane
• Now available with (optional) modulating supply air fan

Features and Benefits

• Thermal efficiency of 100% at full load and up to 109% at minimum load for lower operational costs
• Pull through” technology ensures no gas can escape into the heated space
• Powerful air throw means improved heat distribution
• Substantially reduced CO2 and NOx emissions

Technical Specification

Technical Information

Product dimensions:

Technical Information

Brochures + Manuals

Installation ManualProduct GuideWiring Diagram

Installation Manual

English

OP207.1 ULSA-2 Vertical Louvre Installation Manual D301646 Oct 2024 rev 0



Language: English
Production status: current-production
Download

Reznor, ULSA, EN, 2021-11, D301098 issue 1



Language: English
Production status: current-production
Download

Reznor, ULSA, Installation Manual EC, EN 2018-06, D301098



Language: English
Production status: current-production
Download

ULSA Installation Manual



Language: English
Production status: current-production
Download

Product Guide

English

Reznor, RHeco, Sales Brochure, EN 2020-01, GB-REZ-RHE-005-0120



Language: English
Production status: current-production
Download

Wiring Diagram

English

Wiring Diagram for Rheco unit heater



Language: English
Production status: current-production
Download

Product Description

Continuing the tradition of manufacturing high efficiency warm air heating solutions with our highly efficient RHeco range of energy saving condensing gas fired unit heaters. In times of rapidly increasing energy costs, reducing energy consumption makes sense both financially and environmentally since this also significantly reduces CO2 emissions. The units exceed the requirements of current Building Regulations L2, with thermal efficiencies up to 109% to provide exceptional levels of seasonal efficiency. Transition to sustainable heating solutions today with RHeco.

Model range:
• The RHeco condensing units consisting of five models is available with heat outputs ranging from 25kW to 95kW
• For use on natural gas or propane
• Now available with (optional) modulating supply air fan

Features and Benefits

• Thermal efficiency of 100% at full load and up to 109% at minimum load for lower operational costs
• Pull through” technology ensures no gas can escape into the heated space
• Powerful air throw means improved heat distribution
• Substantially reduced CO2 and NOx emissions

Technical Specification

Technical Information

Product dimensions:

Technical Information

Brochures + Manuals

Installation ManualProduct GuideWiring Diagram

Installation Manual

English

OP207.1 ULSA-2 Vertical Louvre Installation Manual D301646 Oct 2024 rev 0



Language: English
Production status: current-production
Download

Reznor, ULSA, EN, 2021-11, D301098 issue 1



Language: English
Production status: current-production
Download

Reznor, ULSA, Installation Manual EC, EN 2018-06, D301098



Language: English
Production status: current-production
Download

ULSA Installation Manual



Language: English
Production status: current-production
Download

Product Guide

English

Reznor, RHeco, Sales Brochure, EN 2020-01, GB-REZ-RHE-005-0120



Language: English
Production status: current-production
Download

Wiring Diagram

English

Wiring Diagram for Rheco unit heater



Language: English
Production status: current-production
Download

Product Description

Continuing the tradition of manufacturing high efficiency warm air heating solutions with our highly efficient RHeco range of energy saving condensing gas fired unit heaters. In times of rapidly increasing energy costs, reducing energy consumption makes sense both financially and environmentally since this also significantly reduces CO2 emissions. The units exceed the requirements of current Building Regulations L2, with thermal efficiencies up to 109% to provide exceptional levels of seasonal efficiency. Transition to sustainable heating solutions today with RHeco.

Model range:
• The RHeco condensing units consisting of five models is available with heat outputs ranging from 25kW to 95kW
• For use on natural gas or propane
• Now available with (optional) modulating supply air fan

Features and Benefits

• Thermal efficiency of 100% at full load and up to 109% at minimum load for lower operational costs
• Pull through” technology ensures no gas can escape into the heated space
• Powerful air throw means improved heat distribution
• Substantially reduced CO2 and NOx emissions

Technical Specification

Technical Information

Product dimensions:

Technical Information

Brochures + Manuals

Installation ManualProduct GuideWiring Diagram

Installation Manual

English

OP207.1 ULSA-2 Vertical Louvre Installation Manual D301646 Oct 2024 rev 0



Language: English
Production status: current-production
Download

Reznor, ULSA, EN, 2021-11, D301098 issue 1



Language: English
Production status: current-production
Download

Reznor, ULSA, Installation Manual EC, EN 2018-06, D301098



Language: English
Production status: current-production
Download

ULSA Installation Manual



Language: English
Production status: current-production
Download

Product Guide

English

Reznor Nortek RHeco (ULSA-2) Sales Brochure (Jan 23)



Language: English
Production status: current-production
Download

Reznor, RHeco, Sales Brochure, EN 2020-01, GB-REZ-RHE-005-0120



Language: English
Production status: current-production
Download

Wiring Diagram

English

Wiring Diagram for Rheco unit heater



Language: English
Production status: current-production
Download

Product Description

Continuing the tradition of manufacturing high efficiency warm air heating solutions with our highly efficient RHeco range of energy saving condensing gas fired unit heaters. In times of rapidly increasing energy costs, reducing energy consumption makes sense both financially and environmentally since this also significantly reduces CO2 emissions. The units exceed the requirements of current Building Regulations L2, with thermal efficiencies up to 109% to provide exceptional levels of seasonal efficiency. Transition to sustainable heating solutions today with RHeco.

Model range:
• The RHeco condensing units consisting of five models is available with heat outputs ranging from 25kW to 95kW
• For use on natural gas or propane
• Now available with (optional) modulating supply air fan

Features and Benefits

• Thermal efficiency of 100% at full load and up to 109% at minimum load for lower operational costs
• Pull through” technology ensures no gas can escape into the heated space
• Powerful air throw means improved heat distribution
• Substantially reduced CO2 and NOx emissions

Technical Specification

Technical Information

Product dimensions:

Technical Information

Brochures + Manuals

Installation ManualProduct GuideWiring Diagram

Installation Manual

English

OP207.1 ULSA-2 Vertical Louvre Installation Manual D301646 Oct 2024 rev 0



Language: English
Production status: current-production
Download

Reznor, ULSA, EN, 2021-11, D301098 issue 1



Language: English
Production status: current-production
Download

Reznor, ULSA, Installation Manual EC, EN 2018-06, D301098



Language: English
Production status: current-production
Download

Reznor, ULSA-2, Installation Manual, EN, 2025-05, D301479 issue 2



Language: English
Production status: current-production
Download

ULSA Installation Manual



Language: English
Production status: current-production
Download

Product Guide

English

Reznor Nortek RHeco (ULSA-2) Sales Brochure (Jan 23)



Language: English
Production status: current-production
Download

Reznor, RHeco, Sales Brochure, EN 2020-01, GB-REZ-RHE-005-0120



Language: English
Production status: current-production
Download

Wiring Diagram

English

Wiring Diagram for Rheco unit heater



Language: English
Production status: current-production
Download

Product Description

Continuing the tradition of manufacturing high efficiency warm air heating solutions with our highly efficient RHeco range of energy saving condensing gas fired unit heaters. In times of rapidly increasing energy costs, reducing energy consumption makes sense both financially and environmentally since this also significantly reduces CO2 emissions. The units exceed the requirements of current Building Regulations L2, with thermal efficiencies up to 109% to provide exceptional levels of seasonal efficiency. Transition to sustainable heating solutions today with RHeco.

Model range:
• The RHeco condensing units consisting of five models is available with heat outputs ranging from 25kW to 95kW
• For use on natural gas or propane
• Now available with (optional) modulating supply air fan

Features and Benefits

• Thermal efficiency of 100% at full load and up to 109% at minimum load for lower operational costs
• Pull through” technology ensures no gas can escape into the heated space
• Powerful air throw means improved heat distribution
• Substantially reduced CO2 and NOx emissions

Technical Specification

Technical Information

Product dimensions:

Technical Information

Brochures + Manuals

Installation ManualProduct GuideWiring Diagram

Installation Manual

English

OP207.1 ULSA-2 Vertical Louvre Installation Manual D301646 Oct 2024 rev 0



Language: English
Production status: current-production
Download

Reznor, ULSA, EN, 2021-11, D301098 issue 1



Language: English
Production status: current-production
Download

Reznor, ULSA, Installation Manual EC, EN 2018-06, D301098



Language: English
Production status: current-production
Download

ULSA Installation Manual



Language: English
Production status: current-production
Download

Product Guide

English

Reznor, RHeco, Sales Brochure, EN 2020-01, GB-REZ-RHE-005-0120



Language: English
Production status: current-production
Download

Wiring Diagram

English

Wiring Diagram for Rheco unit heater



Language: English
Production status: current-production
Download

Product Description

Continuing the tradition of manufacturing high efficiency warm air heating solutions with our highly efficient RHeco range of energy saving condensing gas fired unit heaters. In times of rapidly increasing energy costs, reducing energy consumption makes sense both financially and environmentally since this also significantly reduces CO2 emissions. The units exceed the requirements of current Building Regulations L2, with thermal efficiencies up to 109% to provide exceptional levels of seasonal efficiency. Transition to sustainable heating solutions today with RHeco.

Model range:
• The RHeco condensing units consisting of five models is available with heat outputs ranging from 25kW to 95kW
• For use on natural gas or propane
• Now available with (optional) modulating supply air fan

Features and Benefits

• Thermal efficiency of 100% at full load and up to 109% at minimum load for lower operational costs
• Pull through” technology ensures no gas can escape into the heated space
• Powerful air throw means improved heat distribution
• Substantially reduced CO2 and NOx emissions

Technical Specification

Technical Information

Product dimensions:

Technical Information

Brochures + Manuals

Installation ManualProduct GuideWiring Diagram

Installation Manual

English

OP207.1 ULSA-2 Vertical Louvre Installation Manual D301646 Oct 2024 rev 0



Language: English
Production status: current-production
Download

Reznor, ULSA, EN, 2021-11, D301098 issue 1



Language: English
Production status: current-production
Download

Reznor, ULSA, Installation Manual EC, EN 2018-06, D301098



Language: English
Production status: current-production
Download

Reznor, ULSA-2, Installation Manual, EN, 2025-05, D301479 issue 2



Language: English
Production status: current-production
Download

ULSA Installation Manual



Language: English
Production status: current-production
Download

Product Guide

English

Reznor Nortek RHeco (ULSA-2) Sales Brochure (Jan 23)



Language: English
Production status: current-production
Download

Reznor, RHeco, Sales Brochure, EN 2020-01, GB-REZ-RHE-005-0120



Language: English
Production status: current-production
Download

Wiring Diagram

English

Wiring Diagram for Rheco unit heater



Language: English
Production status: current-production
Download

Product Description

Continuing the tradition of manufacturing high efficiency warm air heating solutions with our highly efficient RHeco range of energy saving condensing gas fired unit heaters. In times of rapidly increasing energy costs, reducing energy consumption makes sense both financially and environmentally since this also significantly reduces CO2 emissions. The units exceed the requirements of current Building Regulations L2, with thermal efficiencies up to 109% to provide exceptional levels of seasonal efficiency. Transition to sustainable heating solutions today with RHeco.

Model range:
• The RHeco condensing units consisting of five models is available with heat outputs ranging from 25kW to 95kW
• For use on natural gas or propane
• Now available with (optional) modulating supply air fan

Features and Benefits

• Thermal efficiency of 100% at full load and up to 109% at minimum load for lower operational costs
• Pull through” technology ensures no gas can escape into the heated space
• Powerful air throw means improved heat distribution
• Substantially reduced CO2 and NOx emissions

Technical Specification

Technical Information

Product dimensions:

Technical Information

Brochures + Manuals

Installation ManualProduct GuideWiring Diagram

Installation Manual

English

OP207.1 ULSA-2 Vertical Louvre Installation Manual D301646 Oct 2024 rev 0



Language: English
Production status: current-production
Download

Reznor, ULSA, EN, 2021-11, D301098 issue 1



Language: English
Production status: current-production
Download

Reznor, ULSA, Installation Manual EC, EN 2018-06, D301098



Language: English
Production status: current-production
Download

Reznor, ULSA-2, Installation Manual, EN, 2025-05, D301479 issue 2



Language: English
Production status: current-production
Download

ULSA Installation Manual



Language: English
Production status: current-production
Download

Product Guide

English

Reznor Nortek RHeco (ULSA-2) Sales Brochure (Jan 23)



Language: English
Production status: current-production
Download

Reznor, RHeco, Sales Brochure, EN 2020-01, GB-REZ-RHE-005-0120



Language: English
Production status: current-production
Download

Wiring Diagram

English

Wiring Diagram for Rheco unit heater



Language: English
Production status: current-production
Download

Product Description

Continuing the tradition of manufacturing high efficiency warm air heating solutions with our highly efficient RHeco range of energy saving condensing gas fired unit heaters. In times of rapidly increasing energy costs, reducing energy consumption makes sense both financially and environmentally since this also significantly reduces CO2 emissions. The units exceed the requirements of current Building Regulations L2, with thermal efficiencies up to 109% to provide exceptional levels of seasonal efficiency. Transition to sustainable heating solutions today with RHeco.

Model range:
• The RHeco condensing units consisting of five models is available with heat outputs ranging from 25kW to 95kW
• For use on natural gas or propane
• Now available with (optional) modulating supply air fan

Features and Benefits

• Thermal efficiency of 100% at full load and up to 109% at minimum load for lower operational costs
• Pull through” technology ensures no gas can escape into the heated space
• Powerful air throw means improved heat distribution
• Substantially reduced CO2 and NOx emissions

Technical Specification

Technical Information

Product dimensions:

Technical Information

Brochures + Manuals

Installation ManualProduct GuideWiring Diagram

Installation Manual

English

OP207.1 ULSA-2 Vertical Louvre Installation Manual D301646 Oct 2024 rev 0



Language: English
Production status: current-production
Download

Reznor, ULSA, EN, 2021-11, D301098 issue 1



Language: English
Production status: current-production
Download

Reznor, ULSA, Installation Manual EC, EN 2018-06, D301098



Language: English
Production status: current-production
Download

Reznor, ULSA-2, Installation Manual, EN, 2025-05, D301479 issue 2



Language: English
Production status: current-production
Download

ULSA Installation Manual



Language: English
Production status: current-production
Download

Product Guide

English

Reznor Nortek RHeco (ULSA-2) Sales Brochure (Jan 23)



Language: English
Production status: current-production
Download

Reznor, RHeco, Sales Brochure, EN 2020-01, GB-REZ-RHE-005-0120



Language: English
Production status: current-production
Download

Wiring Diagram

English

Wiring Diagram for Rheco unit heater



Language: English
Production status: current-production
Download

Product Description

Continuing the tradition of manufacturing high efficiency warm air heating solutions with our highly efficient RHeco range of energy saving condensing gas fired unit heaters. In times of rapidly increasing energy costs, reducing energy consumption makes sense both financially and environmentally since this also significantly reduces CO2 emissions. The units exceed the requirements of current Building Regulations L2, with thermal efficiencies up to 109% to provide exceptional levels of seasonal efficiency. Transition to sustainable heating solutions today with RHeco.

Model range:
• The RHeco condensing units consisting of five models is available with heat outputs ranging from 25kW to 95kW
• For use on natural gas or propane
• Now available with (optional) modulating supply air fan

Features and Benefits

• Thermal efficiency of 100% at full load and up to 109% at minimum load for lower operational costs
• Pull through” technology ensures no gas can escape into the heated space
• Powerful air throw means improved heat distribution
• Substantially reduced CO2 and NOx emissions

Technical Specification

Technical Information

Product dimensions:

Technical Information

Brochures + Manuals

Installation ManualProduct GuideWiring Diagram

Installation Manual

English

OP207.1 ULSA-2 Vertical Louvre Installation Manual D301646 Oct 2024 rev 0



Language: English
Production status: current-production
Download

Reznor, ULSA, EN, 2021-11, D301098 issue 1



Language: English
Production status: current-production
Download

Reznor, ULSA, Installation Manual EC, EN 2018-06, D301098



Language: English
Production status: current-production
Download

ULSA Installation Manual



Language: English
Production status: current-production
Download

Product Guide

English

Reznor Nortek RHeco (ULSA-2) Sales Brochure (Jan 23)



Language: English
Production status: current-production
Download

Reznor, RHeco, Sales Brochure, EN 2020-01, GB-REZ-RHE-005-0120



Language: English
Production status: current-production
Download

Wiring Diagram

English

Wiring Diagram for Rheco unit heater



Language: English
Production status: current-production
Download

Product Description

Continuing the tradition of manufacturing high efficiency warm air heating solutions with our highly efficient RHeco range of energy saving condensing gas fired unit heaters. In times of rapidly increasing energy costs, reducing energy consumption makes sense both financially and environmentally since this also significantly reduces CO2 emissions. The units exceed the requirements of current Building Regulations L2, with thermal efficiencies up to 109% to provide exceptional levels of seasonal efficiency. Transition to sustainable heating solutions today with RHeco.

Model range:
• The RHeco condensing units consisting of five models is available with heat outputs ranging from 25kW to 95kW
• For use on natural gas or propane
• Now available with (optional) modulating supply air fan

Features and Benefits

• Thermal efficiency of 100% at full load and up to 109% at minimum load for lower operational costs
• Pull through” technology ensures no gas can escape into the heated space
• Powerful air throw means improved heat distribution
• Substantially reduced CO2 and NOx emissions

Technical Specification

Technical Information

Product dimensions:

Technical Information

Brochures + Manuals

Installation ManualProduct GuideWiring Diagram

Installation Manual

English

OP207.1 ULSA-2 Vertical Louvre Installation Manual D301646 Oct 2024 rev 0



Language: English
Production status: current-production
Download

Reznor, ULSA, EN, 2021-11, D301098 issue 1



Language: English
Production status: current-production
Download

Reznor, ULSA, Installation Manual EC, EN 2018-06, D301098



Language: English
Production status: current-production
Download

ULSA Installation Manual



Language: English
Production status: current-production
Download

Product Guide

English

Reznor, RHeco, Sales Brochure, EN 2020-01, GB-REZ-RHE-005-0120



Language: English
Production status: current-production
Download

Wiring Diagram

English

Wiring Diagram for Rheco unit heater



Language: English
Production status: current-production
Download

Product Description

Continuing the tradition of manufacturing high efficiency warm air heating solutions with our highly efficient RHeco range of energy saving condensing gas fired unit heaters. In times of rapidly increasing energy costs, reducing energy consumption makes sense both financially and environmentally since this also significantly reduces CO2 emissions. The units exceed the requirements of current Building Regulations L2, with thermal efficiencies up to 109% to provide exceptional levels of seasonal efficiency. Transition to sustainable heating solutions today with RHeco.

Model range:
• The RHeco condensing units consisting of five models is available with heat outputs ranging from 25kW to 95kW
• For use on natural gas or propane
• Now available with (optional) modulating supply air fan

Features and Benefits

• Thermal efficiency of 100% at full load and up to 109% at minimum load for lower operational costs
• Pull through” technology ensures no gas can escape into the heated space
• Powerful air throw means improved heat distribution
• Substantially reduced CO2 and NOx emissions

Technical Specification

Technical Information

Product dimensions:

Technical Information

Brochures + Manuals

Installation ManualProduct GuideWiring Diagram

Installation Manual

English

OP207.1 ULSA-2 Vertical Louvre Installation Manual D301646 Oct 2024 rev 0



Language: English
Production status: current-production
Download

Reznor, ULSA, EN, 2021-11, D301098 issue 1



Language: English
Production status: current-production
Download

Reznor, ULSA, Installation Manual EC, EN 2018-06, D301098



Language: English
Production status: current-production
Download

ULSA Installation Manual



Language: English
Production status: current-production
Download

Product Guide

English

Reznor Nortek RHeco (ULSA-2) Sales Brochure (Jan 23)



Language: English
Production status: current-production
Download

Reznor, RHeco, Sales Brochure, EN 2020-01, GB-REZ-RHE-005-0120



Language: English
Production status: current-production
Download

Wiring Diagram

English

Wiring Diagram for Rheco unit heater



Language: English
Production status: current-production
Download

Product Description

Continuing the tradition of manufacturing high efficiency warm air heating solutions with our highly efficient RHeco range of energy saving condensing gas fired unit heaters. In times of rapidly increasing energy costs, reducing energy consumption makes sense both financially and environmentally since this also significantly reduces CO2 emissions. The units exceed the requirements of current Building Regulations L2, with thermal efficiencies up to 109% to provide exceptional levels of seasonal efficiency. Transition to sustainable heating solutions today with RHeco.

Model range:
• The RHeco condensing units consisting of five models is available with heat outputs ranging from 25kW to 95kW
• For use on natural gas or propane
• Now available with (optional) modulating supply air fan

Features and Benefits

• Thermal efficiency of 100% at full load and up to 109% at minimum load for lower operational costs
• Pull through” technology ensures no gas can escape into the heated space
• Powerful air throw means improved heat distribution
• Substantially reduced CO2 and NOx emissions

Technical Specification

Technical Information

Product dimensions:

Technical Information

Brochures + Manuals

Installation ManualProduct GuideWiring Diagram

Installation Manual

English

OP207.1 ULSA-2 Vertical Louvre Installation Manual D301646 Oct 2024 rev 0



Language: English
Production status: current-production
Download

Reznor, ULSA, EN, 2021-11, D301098 issue 1



Language: English
Production status: current-production
Download

Reznor, ULSA, Installation Manual EC, EN 2018-06, D301098



Language: English
Production status: current-production
Download

ULSA Installation Manual



Language: English
Production status: current-production
Download

Product Guide

English

Reznor Nortek RHeco (ULSA-2) Sales Brochure (Jan 23)



Language: English
Production status: current-production
Download

Reznor, RHeco, Sales Brochure, EN 2020-01, GB-REZ-RHE-005-0120



Language: English
Production status: current-production
Download

Wiring Diagram

English

Wiring Diagram for Rheco unit heater



Language: English
Production status: current-production
Download

Product Description

Continuing the tradition of manufacturing high efficiency warm air heating solutions with our highly efficient RHeco range of energy saving condensing gas fired unit heaters. In times of rapidly increasing energy costs, reducing energy consumption makes sense both financially and environmentally since this also significantly reduces CO2 emissions. The units exceed the requirements of current Building Regulations L2, with thermal efficiencies up to 109% to provide exceptional levels of seasonal efficiency. Transition to sustainable heating solutions today with RHeco.

Model range:
• The RHeco condensing units consisting of five models is available with heat outputs ranging from 25kW to 95kW
• For use on natural gas or propane
• Now available with (optional) modulating supply air fan

Features and Benefits

• Thermal efficiency of 100% at full load and up to 109% at minimum load for lower operational costs
• Pull through” technology ensures no gas can escape into the heated space
• Powerful air throw means improved heat distribution
• Substantially reduced CO2 and NOx emissions

Technical Specification

Technical Information

Product dimensions:

Technical Information

Brochures + Manuals

Installation ManualProduct GuideWiring Diagram

Installation Manual

English

OP207.1 ULSA-2 Vertical Louvre Installation Manual D301646 Oct 2024 rev 0



Language: English
Production status: current-production
Download

Reznor, ULSA, EN, 2021-11, D301098 issue 1



Language: English
Production status: current-production
Download

Reznor, ULSA, Installation Manual EC, EN 2018-06, D301098



Language: English
Production status: current-production
Download

ULSA Installation Manual



Language: English
Production status: current-production
Download

Product Guide

English

Reznor Nortek RHeco (ULSA-2) Sales Brochure (Jan 23)



Language: English
Production status: current-production
Download

Reznor, RHeco, Sales Brochure, EN 2020-01, GB-REZ-RHE-005-0120



Language: English
Production status: current-production
Download

Wiring Diagram

English

Wiring Diagram for Rheco unit heater



Language: English
Production status: current-production
Download

Product Description

Continuing the tradition of manufacturing high efficiency warm air heating solutions with our highly efficient RHeco range of energy saving condensing gas fired unit heaters. In times of rapidly increasing energy costs, reducing energy consumption makes sense both financially and environmentally since this also significantly reduces CO2 emissions. The units exceed the requirements of current Building Regulations L2, with thermal efficiencies up to 109% to provide exceptional levels of seasonal efficiency. Transition to sustainable heating solutions today with RHeco.

Model range:
• The RHeco condensing units consisting of five models is available with heat outputs ranging from 25kW to 95kW
• For use on natural gas or propane
• Now available with (optional) modulating supply air fan

Features and Benefits

• Thermal efficiency of 100% at full load and up to 109% at minimum load for lower operational costs
• Pull through” technology ensures no gas can escape into the heated space
• Powerful air throw means improved heat distribution
• Substantially reduced CO2 and NOx emissions

Technical Specification

Technical Information

Product dimensions:

Technical Information

Brochures + Manuals

Installation ManualProduct GuideWiring Diagram

Installation Manual

English

OP207.1 ULSA-2 Vertical Louvre Installation Manual D301646 Oct 2024 rev 0



Language: English
Production status: current-production
Download

Reznor, ULSA, EN, 2021-11, D301098 issue 1



Language: English
Production status: current-production
Download

Reznor, ULSA, Installation Manual EC, EN 2018-06, D301098



Language: English
Production status: current-production
Download

ULSA Installation Manual



Language: English
Production status: current-production
Download

Product Guide

English

Reznor, RHeco, Sales Brochure, EN 2020-01, GB-REZ-RHE-005-0120



Language: English
Production status: current-production
Download

Wiring Diagram

English

Wiring Diagram for Rheco unit heater



Language: English
Production status: current-production
Download

Product Description

Continuing the tradition of manufacturing high efficiency warm air heating solutions with our highly efficient RHeco range of energy saving condensing gas fired unit heaters. In times of rapidly increasing energy costs, reducing energy consumption makes sense both financially and environmentally since this also significantly reduces CO2 emissions. The units exceed the requirements of current Building Regulations L2, with thermal efficiencies up to 109% to provide exceptional levels of seasonal efficiency. Transition to sustainable heating solutions today with RHeco.

Model range:
• The RHeco condensing units consisting of five models is available with heat outputs ranging from 25kW to 95kW
• For use on natural gas or propane
• Now available with (optional) modulating supply air fan

Features and Benefits

• Thermal efficiency of 100% at full load and up to 109% at minimum load for lower operational costs
• Pull through” technology ensures no gas can escape into the heated space
• Powerful air throw means improved heat distribution
• Substantially reduced CO2 and NOx emissions

Technical Specification

Technical Information

Product dimensions:

Technical Information

Brochures + Manuals

Installation ManualProduct GuideWiring Diagram

Installation Manual

English

OP207.1 ULSA-2 Vertical Louvre Installation Manual D301646 Oct 2024 rev 0



Language: English
Production status: current-production
Download

Reznor, ULSA, EN, 2021-11, D301098 issue 1



Language: English
Production status: current-production
Download

Reznor, ULSA, Installation Manual EC, EN 2018-06, D301098



Language: English
Production status: current-production
Download

ULSA Installation Manual



Language: English
Production status: current-production
Download

Product Guide

English

Reznor, RHeco, Sales Brochure, EN 2020-01, GB-REZ-RHE-005-0120



Language: English
Production status: current-production
Download

Wiring Diagram

English

Wiring Diagram for Rheco unit heater



Language: English
Production status: current-production
Download

Product Description

Continuing the tradition of manufacturing high efficiency warm air heating solutions with our highly efficient RHeco range of energy saving condensing gas fired unit heaters. In times of rapidly increasing energy costs, reducing energy consumption makes sense both financially and environmentally since this also significantly reduces CO2 emissions. The units exceed the requirements of current Building Regulations L2, with thermal efficiencies up to 109% to provide exceptional levels of seasonal efficiency. Transition to sustainable heating solutions today with RHeco.

Model range:
• The RHeco condensing units consisting of five models is available with heat outputs ranging from 25kW to 95kW
• For use on natural gas or propane
• Now available with (optional) modulating supply air fan

Features and Benefits

• Thermal efficiency of 100% at full load and up to 109% at minimum load for lower operational costs
• Pull through” technology ensures no gas can escape into the heated space
• Powerful air throw means improved heat distribution
• Substantially reduced CO2 and NOx emissions

Technical Specification

Technical Information

Product dimensions:

Technical Information

Brochures + Manuals

Installation ManualProduct GuideWiring Diagram

Installation Manual

English

OP207.1 ULSA-2 Vertical Louvre Installation Manual D301646 Oct 2024 rev 0



Language: English
Production status: current-production
Download

Reznor, ULSA, EN, 2021-11, D301098 issue 1



Language: English
Production status: current-production
Download

Reznor, ULSA, Installation Manual EC, EN 2018-06, D301098



Language: English
Production status: current-production
Download

ULSA Installation Manual



Language: English
Production status: current-production
Download

Product Guide

English

Reznor, RHeco, Sales Brochure, EN 2020-01, GB-REZ-RHE-005-0120



Language: English
Production status: current-production
Download

Wiring Diagram

English

Wiring Diagram for Rheco unit heater



Language: English
Production status: current-production
Download

Product Description

Continuing the tradition of manufacturing high efficiency warm air heating solutions with our highly efficient RHeco range of energy saving condensing gas fired unit heaters. In times of rapidly increasing energy costs, reducing energy consumption makes sense both financially and environmentally since this also significantly reduces CO2 emissions. The units exceed the requirements of current Building Regulations L2, with thermal efficiencies up to 109% to provide exceptional levels of seasonal efficiency. Transition to sustainable heating solutions today with RHeco.

Model range:
• The RHeco condensing units consisting of five models is available with heat outputs ranging from 25kW to 95kW
• For use on natural gas or propane
• Now available with (optional) modulating supply air fan

Features and Benefits

• Thermal efficiency of 100% at full load and up to 109% at minimum load for lower operational costs
• Pull through” technology ensures no gas can escape into the heated space
• Powerful air throw means improved heat distribution
• Substantially reduced CO2 and NOx emissions

Technical Specification

Technical Information

Product dimensions:

Technical Information

Brochures + Manuals

Installation ManualProduct GuideWiring Diagram

Installation Manual

English

OP207.1 ULSA-2 Vertical Louvre Installation Manual D301646 Oct 2024 rev 0



Language: English
Production status: current-production
Download

Reznor, ULSA, EN, 2021-11, D301098 issue 1



Language: English
Production status: current-production
Download

Reznor, ULSA, Installation Manual EC, EN 2018-06, D301098



Language: English
Production status: current-production
Download

ULSA Installation Manual



Language: English
Production status: current-production
Download

Product Guide

English

Reznor, RHeco, Sales Brochure, EN 2020-01, GB-REZ-RHE-005-0120



Language: English
Production status: current-production
Download

Wiring Diagram

English

Wiring Diagram for Rheco unit heater



Language: English
Production status: current-production
Download

Product Description

Continuing the tradition of manufacturing high efficiency warm air heating solutions with our highly efficient RHeco range of energy saving condensing gas fired unit heaters. In times of rapidly increasing energy costs, reducing energy consumption makes sense both financially and environmentally since this also significantly reduces CO2 emissions. The units exceed the requirements of current Building Regulations L2, with thermal efficiencies up to 109% to provide exceptional levels of seasonal efficiency. Transition to sustainable heating solutions today with RHeco.

Model range:
• The RHeco condensing units consisting of five models is available with heat outputs ranging from 25kW to 95kW
• For use on natural gas or propane
• Now available with (optional) modulating supply air fan

Features and Benefits

• Thermal efficiency of 100% at full load and up to 109% at minimum load for lower operational costs
• Pull through” technology ensures no gas can escape into the heated space
• Powerful air throw means improved heat distribution
• Substantially reduced CO2 and NOx emissions

Technical Specification

Technical Information

Product dimensions:

Technical Information

Brochures + Manuals

Installation ManualProduct GuideWiring Diagram

Installation Manual

English

OP207.1 ULSA-2 Vertical Louvre Installation Manual D301646 Oct 2024 rev 0



Language: English
Production status: current-production
Download

Reznor, ULSA, EN, 2021-11, D301098 issue 1



Language: English
Production status: current-production
Download

Reznor, ULSA, Installation Manual EC, EN 2018-06, D301098



Language: English
Production status: current-production
Download

ULSA Installation Manual



Language: English
Production status: current-production
Download

Product Guide

English

Reznor, RHeco, Sales Brochure, EN 2020-01, GB-REZ-RHE-005-0120



Language: English
Production status: current-production
Download

Wiring Diagram

English

Wiring Diagram for Rheco unit heater



Language: English
Production status: current-production
Download

Product Description

Reznor continue their tradition of manufacturing high efficiency warm air heating solutions with our highly efficient RHeco range of energy saving condensing gas fired unit heaters. In times of rapidly increasing energy costs, reducing energy consumption makes sense both financially and environmentally since this also significantly reduces CO2 emissions. The units exceed the requirements of current Building Regulations L2, with thermal efficiencies up to 109% to provide exceptional levels of seasonal efficiency. Transition to sustainable heating solutions today with RHeco.

Model range:

• The RHeco condensing units consisting of five models is available with heat outputs ranging from 25kW to 95kW for use on natural gas or propane.
• Now available with (optional) modulating supply air fan

Features and Benefits

• Thermal efficiency of 98% at full load and up to 109% at minimum load for lower operational costs
• “Pull through” technology ensures no gas can escape into the heated space
• Powerful air throw means improved heat distribution
• Substantially reduced CO2 and NOx emissions

Brochures + Manuals

Installation ManualProduct GuideWiring Diagram

Installation Manual

English

OP207.1 ULSA-2 Vertical Louvre Installation Manual D301646 Oct 2024 rev 0



Language: English
Production status: current-production
Download

Reznor, ULSA, EN, 2021-11, D301098 issue 1



Language: English
Production status: current-production
Download

Reznor, ULSA, Installation Manual EC, EN 2018-06, D301098



Language: English
Production status: current-production
Download

Reznor, ULSA-2, Installation Manual, EN, 2025-05, D301479 issue 2



Language: English
Production status: current-production
Download

ULSA Installation Manual



Language: English
Production status: current-production
Download

Product Guide

English

Reznor, RHeco, Sales Brochure, EN 2020-01, GB-REZ-RHE-005-0120



Language: English
Production status: current-production
Download

Wiring Diagram

English

Wiring Diagram for Rheco unit heater



Language: English
Production status: current-production
Download