Garage Heating Guides
Short, practical answers about heating a garage, with real numbers from the garage heater calculator instead of rules of thumb.
Choosing a heater
Which kind of heater fits your garage, your fuel and how often you use it.
Best way to heat a garageSix heating methods ranked by what they cost to run in your garage.
Best garage heaterPicks by garage size and fuel, with example models and no affiliate links.
Electric garage heatersWatts by garage size, 120V versus 240V, circuits and running cost.
Propane garage heatersBTU input by garage size, tank run time, venting and fuel cost.
Natural gas garage heatersInput BTU by garage size, venting, gas line work and running cost.
Tools
Sizing
How much heat your garage needs, by car count, square feet and building type.
1-car garage heaterWhen a plug-in heater is enough and when it is not.
2-car garage heater20 × 20 versus 24 × 24, in BTU and watts.
3-car garage heaterWhere electric runs out and gas takes over.
Garage heater size chartBTU by garage size, insulation and square feet.
Garage & shop heater BTU calculatorGarages, workshops, pole barns and metal buildings.
Heater sizes
Tools
Costs
What a heater costs to run each winter and what it costs to put in.
Gas vs electricRunning cost, installation and the cases where each one wins.
Cost to run a garage heaterPer hour, month and season, with your own prices.
Garage heater installation costEquipment, circuits, gas lines and venting, item by item.
Tools
Safety
What to know before you burn fuel in a closed garage.
Ventless garage heaters