Hearthrite HRW25TL Vent Free Infrared Gas Heater 25000 Btu

Product Description

The HEARTHRITE HRW25TL is a 25,000 BTU/h vent-free infrared radiant gas heater designed for liquid propane (LP) operation. It delivers radiant heat at 99.9% efficiency and continues to operate during power outages, making it a reliable supplemental or primary heat source in residential and light commercial spaces. The unit features thermostatic controls and a standing pilot with push-button piezo ignition. A factory-installed Oxygen Depletion Sensor (ODS) automatically shuts down the heater if ambient oxygen levels fall below a safe threshold. Every unit is test-fired at the factory before shipment. Professional installation by a certified gas technician is required.

The HRW25TL is suited for residential rooms, garages, workshops, cabins, and similar spaces where vent-free heating is permitted by local code. It is available for wall mount as standard, with an optional floor stand kit for flexible placement. The unit ships in a white finish and is available in LP only. A manual-control variant (HRW25ML) is also available for applications where thermostatic control is not required. This product cannot be shipped to or installed in California. LP installations must use a 100 lb or larger propane tank with an external regulator providing 11 to 14 inches water column output.

Key Features

• 25,000 BTU/h infrared radiant output at 99.9% efficiency
• Operates without electrical power — standing pilot with push-button piezo ignition
• Factory-installed ODS shuts off unit automatically if oxygen level drops to unsafe level
• Thermostatic control for automatic temperature maintenance
• Wall mount standard; optional floor stand kit available
• Every unit test-fired at factory before shipment
• AHRI certified and Design Certified

Compatibility

Designed for liquid propane fuel supply systems using a 100 lb or larger tank with an external regulator set to an output of 11 to 14 inches water column. A manual-control version of this heater is available under part number HRW25ML.

Installation Notes

Installation must be performed by a licensed or certified gas technician in accordance with local codes and applicable gas appliance standards. Shut off the LP supply at the tank valve before making any gas connections and verify all fittings for leaks after installation. Maintain required clearances: 36 inches to ceiling above the unit, 3 inches from floor below, and 8 inches from any side wall. Repairs must be performed by a qualified service contractor — do not attempt field repair of the ODS or gas valve assembly.

Technical Specifications

• Heating Output: 25,000 BTU/h
• Fuel Type: Liquid Propane (LP)
• Flame Type: Infrared / Radiant
• Efficiency: 99.9%
• Ignition Type: Standing Pilot with Push-Button Piezo
• Control Type: Thermostatic
• Type of Venting: Vent Free
• Gas Connection Size: 3/8 inches
• Manifold Pressure: 10.0 inches w.c.
• Inlet Gas Pressure (Min.): 11.0 inches w.c.
• Inlet Gas Pressure (Max.): 14.0 inches w.c.
• Installation Type: Floor or Wall Mount
• Clearance — Top to Ceiling: 36 inches
• Clearance — Bottom to Floor: 3 inches
• Clearance — To Side Wall: 8 inches
• Width: 27.16 inches
• Depth: 7.44 inches
• Height: 23 inches
• Net Weight: 25.6 pounds
• Finish: White
• Certifications: AHRI, Design Certified

Standard Information

• Brand: HEARTHRITE
• Manufacturer Part Number: HRW25TL