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Garage Gas Heater | Best Value Retrofit Heaters
Garage gas heaters are designed to turn garages, workshops, and utility buildings
into comfortable work and recreation areas. Wall mounting allows a variety of
placement options and easy access for routine maintenance.
Gas heaters for garages are simple and inexpensive to install using an existing
natural gas line or propane tank. Also, vent free garage heaters don't require
additional venting or duct work.
A battery powered piezo ignition (think gas grill) system eliminates the need for
electrical wiring, so when the power goes out, the heater will continue to work.
The heat output is controlled by either a thermostat offering a range of heat
settings or a simple high/low switch.
Dual fuel models like the ProCom Blue Flame 20k BTU shown below offer the option
to heat with natural gas or propane.
The number of BTUs you'll need depends on the square footage of the area you
intend to heat, the outdoor temperature, how well the garage is insulated, and how
warm you want it to be.
In most cases 40 BTUs per square foot should be sufficient - even if you're just
sitting around watching the game. So a typical 400 sq ft double garage would need
a heater in the range of 16k BTUs.
There is some confusion as to whether or not vent free heaters are permitted in
various parts of the country. You can check the status of your state on this chart.
Gas Garage Heater Installation and Safety Tips
- LP gas heaters require a minimum 100 lb tank to prevent fuel freeze-ups.
- A regulator is required between the tank and heater for LP gas models
- Field conversion of an LP unit to natural gas, or vice versa, is not permitted.
- To protect yourself from oxygen depletion, unvented heaters should be
operated in a well ventilated area and equipped with a carbon dioxide
detector. These devices sound an alarm when the oxygen level in the room
drops below 18%. A carbon dioxide detector is not the same thing as a
carbon monoxide detector.
- Depending on the model, vent free combustion heaters should not be used at
altitudes greater than 3,500 feet and never more than 5,000 feet.
- All combustion space heaters should be professionally installed, and
inspected every year just like any other furnace.
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