Garage Furnace Btu Calculator

Your heater size depends on the garage s square footage ceiling height and insulation so don t guess.

Garage furnace btu calculator.

The british thermal unit or btu is an energy unit. It is approximately the energy needed to heat one pound of water by 1 degree fahrenheit. If you took one pound of water and raised its temperature by one degree fahrenheit you would have used one btu of energy. Some garage heaters only list their heating capacity in watts so it s useful to be able to convert watts to btus and vice versa.

Calculate the cubic footage of the space to be heated by multiplying building length x width x ceiling height. 5280 x 3 41 18 005 btus. 1 btu 1 055 joules 252 calories 0 293 watt hour or the energy released by burning one match. Multiply by 6 000 instead of 9 000 if your garage is insulated.

Our free garage heater calculator takes the guesswork out of selecting a garage heater. Calculate the number of british thermal units required to raise the temperature inside the garage to the desired temperature. For this step you ll need to determine how well the garage is. Take the guesswork out of garage heater sizing.

One watt is equal to about 3 41 btus per hour. Given all the different options available for heaters space vented gas console and more narrowing down the choices can be a great way to ensure that you are choosing the best option. A 30 x 40 pole barn with 14 foot average ceilings will have 30x40x14 16 800 cubic feet of space to heat. Taylor you can calculate btu requirements to insure purchasing a sufficient garage heater.

And don t oversize your heater especially if you intend to leave it on even at a reduced temperature all winter. Just multiple the btus by 0 92 to find the number of watts needed. Most residential garages require heaters with a capacity of 30 000 or 45 000 btu. Divide your total square footage by 200 and then multiply your answer by 9 000 to determine the btu requirements for an uninsulated garage.

Insulation volume temperature rise 1 6 btu. Answer a few questions about your energy source and garage and the garage heater calculator free tool recommends models that will do the job. 1 watt is approximately 3 412 btu per hour. When shopping for heaters many people make the mistake of choosing the wrong size for their actual needs.

To calculate the size unit heater required for your space use the following formula.