Electric Furnace Btu Calculator

Here is a table with calculated 3 000 sq ft furnace sizes for all 5 regions.

Electric furnace btu calculator.

Then to calculate the output on a given gas furnace multiply it s efficiency rating by it s listed input rating to determine the actual btu output of heat. Most of the other online calculators relate to central heating and or air conditioning systems. For example if a furnace has a listed input rating of 90 000 btu s and an efficiency rating of 80 it will produce 90 000 btu input x 80 efficiency. A more efficient furnace will output more btus of heat than a less efficient furnace with the same btu rating.

The actual production of heat called the output btu will be the main factor in deciding which heating unit is right for your home. Furnace size for a 3 000 square foot home range from 105 000 btu to 180 000 btu depending on the climate zone you re in. By design the third btu calculator is much more detailed and takes many of these variables into consideration. For example if a furnace is rated at 100 000 btus and is 80 efficient then the heat output will be 80 000 btus 100 000 x 8.

Our btu calculator is the best there is for fireplaces stoves and inserts. That means the furnace will produce 80 000 btu of heat. Each kw produces about 3400 btu s of heat so the heating output of the various heat strip options are as follows. It s been developed by fireplace industry experts.

If that same furnace has an efficiency of 95 the furnace will produce 95 000 btu of heat.