70000 Btu Furnace Square Footage

Variables let s talk about all of the variables that come into play when selecting a new air conditioner system or furnace.

70000 btu furnace square footage.

A more efficient furnace will output more btus of heat than a less efficient furnace with the same btu rating. Once you have the total square footage just multiply that number by 20 to find how many btus per hour you d need to heat or cool the space. For example if you re trying to heat or cool 1 000 square feet you would multiply 1 000 by 20 and get 20 000 btus per hour. For this example using an 80 efficient furnace the 1900 square foot home above would require a 90 000 btu input furnace that produces 72 000 btu s of heating which is close enough to the 76 000 btu s required using the climate heating factor.

1 watt is approximately 3 412 btu per hour. For this example using an 80 efficient furnace the 1900 square foot home above would require a 90 000 btu input furnace that produces 72 000 btu s of heating which is close enough to the 76 000 btu s required using the climate heating factor. 1 btu 1 055 joules 252 calories 0 293 watt hour or the energy released by burning one match. Btu charts furnace output and air conditioner size for a bungalow bungalow area sq ft furnace output btu hr air conditioner size ton built after year 1980 built before year 1980 built after year 1980 built before year 1980 up to readmore.

It is approximately the energy needed to heat one pound of water by 1 degree fahrenheit. In the example above using an 80 efficient furnace the 2000 square foot home above would require a 100 000 btu input furnace which will produce the necessary 80 000 btu s output of heat. For example if you re trying to heat 1000 square feet in a cold climate 30 000 40 000 btu s will add significant warm air to your home. At 40 to 45 btus per square foot you d need a 100 000 to 112 500 btu.

Then add the square footage for each room together. 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. Furnaces are rated on their btus of energy consumption not their btus of energy output. Another quick and easy way to estimate the number of btu s required is with this helpful chart.

And in cold climates multiply the square foot number by 30 40. What is a btu. The british thermal unit or btu is an energy unit.