Indirect fired air heaters offer robust, fuel-efficient warmth for large spaces without venting fumes indoors. This guide highlights five top options and related models to help American buyers compare performance, safety features, and installation requirements. Each selection emphasizes reliability, compatibility with propane or natural gas, and suitability for garages, workshops, or workspaces that demand steady heat. Browse shown models for a balanced view of electric, kerosene, and gas-fired solutions, and use the buying guide below to choose the best fit for your heating needs.
| Product | Brand | BTU / Coverage | Fuel | Type |
|---|---|---|---|---|
| 60105 Control Board | Aepiraza | Up to 125,000 BTU | Natural Gas / Propane | Indirect / Overhead |
| Dr Infrared Heater Portable Space Heater | DR. INFRARED HEATER | Up to ~5,200 BTU | Electric | Infrared |
| Dura Heat EUH1465 Electric | Dura Heat | 1,500 W (about 5,120 BTU) | Electric | Forced Air |
| Heat Storm HS-1500-PHX-WIFI | Heat Storm | 1500 W | Electric | Infrared / Wall Mounted |
| Dyna Glo KFA135DGD | Dyna-Glo | 95,000 or 135,000 BTU | Propane / Natural Gas | Kerosene-style Heath |
60105 Control Board For Mr Heater And Enerco Units
The 60105 control board is designed as an OEM replacement compatible with a range of overhead heaters from Mr Heater, Heat-Star, Big Maxx, and Enerco brands. It supports MHU series units up to 125,000 BTU and acts as the central command unit—regulating ignition, temperature settings, and safety features. The board’s fault code flash capability assists in troubleshooting, making it a practical upgrade for keepers of older overhead gas-fired heaters seeking reliable operation.
Dr Infrared Heater Portable Space Heater
While primarily an electric unit, this model provides insight into multi-space heating options for smaller areas adjacent to indirect-fired systems. It features a dual heating system (infrared quartz tube plus PTC) for enhanced warmth, a 12-hour timer, and a remote for convenient control. The compact design makes it a useful companion for drafting spaces or as a supplementary heat source when paired with larger indirect-fired installations in a garage environment.
Dura Heat EUH1465 Electric Forced Air Heater
This electric forced-air heater delivers 1500 watts of PTC ceramic heating for quick warmth in compact spaces. Its rugged steel construction suits garages and workshops, with multiple heating options including a heat and fan-only setting. It serves as a practical electric alternative when access to a gas line is limited or for continuous background warmth alongside an indirect-fired system.
Heat Storm HS-1500-PHX-WIFI Infrared Heater
This wifi-enabled infrared heater is wall-mounted to save floor space, offering convenient temperature control via a smartphone or remote. It includes tip-over safety shut-off and a digital thermostat. While designed for smaller rooms, its space-saving profile makes it a strong companion to larger indirect-fired setups in a shop where wall area is abundant and ceiling height is limited.
Dura Heat EWH5510 Electric Forced Air Heater
This large electric unit provides up to 17,060 BTU within a 240V installation. It is designed for garages, offering a hard-wired setup and a remote with an adjustable thermostat for flexible climate control. The model requires professional installation due to electrical requirements but delivers robust, steady warmth for sizable workshop spaces when indirect-fired options are not immediately available.
Dyna Glo Delux KFA135DGD
The Dyna Glo model offers a choice between 95,000 and 135,000 BTU options, suitable for heating larger spaces up to several thousand square feet. As a fuel-driven unit, it uses propane or natural gas and supports robust continuous warmth. It’s designed for heavy-duty use in workshops or garages where indirect-fired airflow is preferred for consistent heat distribution without frequent cycling.
Buying Guide: Key Purchase Considerations
When selecting an indirect fired air heater or compatible system, consider space size, fuel availability, and ventilation requirements. Indirect-fired units excel in garages and workshops because they deliver reliable warmth with lower indoor air contamination. Key factors include setup compatibility (gas lines, electrical supply), safety features, and ease of maintenance.
- Space and BTU needs: Calculate the volume of the area (length × width × height) and choose a model with adequate BTU output to avoid short cycling and uneven heat distribution.
- Fuel type and availability: Gas-fired options (natural gas or propane) require proper connections and venting. Electric heaters offer simpler install but require a dedicated circuit and may cost more to run in large spaces.
- Ventilation and exhaust: Indirect-fired units vent exhaust outdoors; ensure your installation plan accommodates safe venting and clearance from combustibles.
- Safety features: Look for flame safeguard systems, overheat protection, tip-over shut-off, and fault-code indicators for easier service checks.
- Control and maintenance: Central control boards and remote thermostats improve convenience. Regular maintenance of burners, ignition systems, and filters extends lifespan.
- Installation flexibility: Some units allow overhead mounting; others are freestanding or wall-mounted. Assess ceiling height, mounting points, and accessibility for service.
- Cost of ownership: Compare upfront installation costs with ongoing fuel or electricity expenses. Indirect-fired systems may offer long-term savings through efficient operation.
In practice, the best choice balances space size, fuel access, and maintenance capabilities. For larger workspaces with existing gas lines, a gas-fired indirect heater can deliver continuous warmth with efficient fuel use. For smaller spaces or areas with electricity readily available, electric forced-air or infrared options provide flexible, lower-install cost solutions. Safety, ease of use, and compatibility with existing heating plans should guide the final selection.
