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Reznor RP-125, 125,000 BTU Duct Furnace, Outdoor, Power-Vented

Reznor RP-125, 125,000 BTU Duct Furnace, Outdoor, Power-Vented

Reznor RP Series 125,000 BTU Gas Fired Duct Furnace Unit Heater, Outdoor, Power-Vented - RP-125

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Model

RP-125-AA1

219169

Was $6,982.00 Your Low Price Special Price $4,589.00

Product Features

125,000 BTU heating capacity
Orifices for natural gas
Weatherized cabinet with interlocking joints
Utilizes a power-vented design
Designed for commercial/industrial rooftop applications
Thermocore® aluminized steel heat exchanger

5 Questions Answered

Description

Reznor RP-125, 125,000 BTU Duct Furnace, Outdoor, Power-Vented

The Reznor® RP series outdoor duct furnaces are 80% thermally efficient units designed to serve as the heating component in outdoor makeup air or heating and cooling systems. Available in sizes ranging from 125,000 to 400,000 BTUH, these furnaces feature a weatherized aluminized steel cabinet. Each unit includes an integral power vent system that manages combustion air and flue products, though it requires a separate blower system for air delivery. For reliable and safe operation, the series comes standard with a spark-ignited pilot ignition, and a 24-volt gas valve.

Features

125,000 BTU
Orifices for natural gas
120 volt supply voltage
Power venters
Left side access for burners and controls
Fan control

Product Specs

More Information
Reznor RP-125, 125,000 BTU Duct Furnace, Outdoor, Power-Vented
Feature	Spec
SKU	RP-125-AA1
Weight (in lbs)	201
Brand/Manufacturer	Reznor
UPC	613365337492
Furnace Efficiency / AFUE	80-85%
Heating BTU	125,000 BTU
Heat Exchanger Material	Aluminized Steel
Maximum CFM	4,605
Venting Type	Power Vent
Efficiency	80%
Electrical	115v 1 Phase 60 Hz
Phase	Single Phase
Amperage Requirement	Full load Amps 1.9A (120V); Control Circuit 0.83A (24V)
Connection	1/2" NG/LP Connection to Gas Valve
Main Burner Material	Aluminized Steel
Fuel Type	Natural Gas
Certification	ANSI & CSA, Approved for US/Canada
Height	38 17/32"
Width	30 15/16"
Depth	26"
Location	Outdoor
Warranty	1 Year Limited Warranty
Resources	Reznor Gas Duct Furnace Catalog Technical Sheet Wiring Diagram Installation Manual Replacement Parts Reznor Gas Conversion Manual Reznor Warranty Info You will need Adobe® Acrobat® Reader to view PDF documents.
Safety Information	PROPOSITION 65 WARNING This product and many products on our site may contain a chemical know to the state of California to cause cancer or birth defects or other reproductive harm. For more information about Proposition 65 please Click Here.

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FAQ's

Customer Questions

What type of unit is the RP Series?

The RP Series is an outdoor commercial/industrial gas-fired duct furnace designed for installation in duct systems using a field-supplied blower. If you have any further questions, feel free to give us a call!

Where must the RP duct furnace be installed in the duct system?

The unit must be installed on the positive pressure side of a field-supplied blower to ensure proper airflow across the heat exchanger. If you have any further questions, feel free to give us a call!

What airflow requirements apply for the Reznor RP series?

The RP Series must: Operate within the CFM range listed on the rating plate, maintain approved temperature rise, and provide uniform airflow across the heat exchanger. Improper airflow may cause high-limit trips or reduced heating performance. If you have any further questions, feel free to give us a call!

What are the standard electrical and ignition specifications for the RP series?

The base model operates on a standard 115/1/60 supply voltage and utilizes a spark pilot for ignition. The unit also includes a 24V control transformer for integration with field-installed thermostats. If you have any further questions, feel free to give us a call!

What types of applications is the RP Series designed for?

The RP Series is commonly used in: Warehouses, manufacturing facilities, commercial buildings. These units are designed for reliable heating in industrial and commercial ducted air systems. If you have any further questions, feel free to give us a call!

Why Choose Reznor Unit Heaters?

Reznor unit heaters are engineered for powerful, energy-efficient heating in commercial, industrial, and residential spaces. With durable construction and advanced technology, these heaters deliver reliable warmth, even heat distribution, and flexible installation options—making them ideal for warehouses, garages, workshops, and more.