.018btu/ft3 F -- It takes .018btu to raise one cubic foot of air 1 degree Fahrenheit.
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its usually about 20 btu's per square foot
No. BTUs are heat (British Thermal Units) and cfm is a measure of air flow volume (cubic feet per minute)
specific heat content is calculated by the joules of energy required to change the temperature of one cubic centimeter of the material 1 degree Celsius.
3 tons of refrigeration = 36,000 BTU's
Heat is measured in BTUs (British Thermal Units)Further AnswerHeat is energy in transit from a warmer body to a cooler body, and, in the SI system is measured in joules(J). In the older, cgs system it was measured in calories. In the Imperial system it was measured in BTUs.
about 12,000
There are about 1030 BTUs in a cubic foot of natural gas. If one wishes to know the gas consumption (in feet3 per hour) for a given BTU per hour usage rate, one would divide the amount of BTUs by 1030. That would yield the number of cubic feet of gas that is used per hour. Q: I'm heating a space using 10,300 BTUs per hour and I'm using my natural gas heater to do it. How many cubic feet of gas am I using per hour? A: 10,300 BTUs (the heat generated per hour) divided by 1030 (the number of BTUs per cubic foot of gas) equals 10 cubic feet. You're using 10 cubic feet per hour. You apply 10,300 BTUs to heat the space per hour, and you use 10 cubic feet of gas per hour to do that. (And yes, I picked easy numbers.)
its usually about 20 btu's per square foot
Roughly, yes. Actually it is slightly more. A cubic foot of natural gas has approximately 1000 btus of heat energy when burned. Figures range as high as 1017 btu/cu.ft. based on the proportions of the mixed gases, primarily methane and propane, which have different heating values. The more propane the more heat in a cubic foot. A generalization made by gas distributors is that a hundred cubic feet [ccf] is equal to one therm [ 100,000 btu] of heat.
30000 btus for every 400 square ft
30000 btus for every 400 square ft
On average it takes about 1,600 BTUs to heat 50 square feet. Multiplying 50 by 1600 equals about 80,000. Therefore, the heating plan of 1,600 square foot are would take about 80,000 BTUs.
No. BTUs are heat (British Thermal Units) and cfm is a measure of air flow volume (cubic feet per minute)
to calulate your btu needs,you can use this link: http://hearth.com/calc/btucalc.html
4800 BTUs will 150 square feet.
One measure does not directly translate to another. A BTU is the amount of heat that it takes to raise the temp of one pound of water by one degree F. A burning match, and a burning fireplace may both be at 650 degrees, but the fireplace gives off more heat (more BTUs)
212 - 80 = 132 degrees temperature increase x 1 pound water = 132 BTU