This is not a valid question. Btu is a quantity of thermal energy, 300 degrees is a temperature, not a quantity of energy
There are 100,000 BTU (British Thermal Units) in a therm.
There are approximately 0.00094781712 BTU in one joule.
1 Therm is equal to 100,000 BTU.
There are 0.00001 therms in 1 BTU.
There are approximately 20,472 BTU in 6 kW.
1
To convert CFH to BTU, you need to use the formula 1 CFH which is equivalent to 1000 BTUs.
175,000btu, you bell-end
To convert cubic feet per hour (CFH) to British Thermal Units (BTU), you need to know the type of gas being measured, as different gases have different heating values. For natural gas, 1 CFH is approximately equivalent to 1,000 BTU. Therefore, 450 CFH of natural gas would equal about 450,000 BTU per hour. If using propane, the conversion would be different, typically around 2,500 BTU per CFH.
1 cfh = 1 mbh
There are 36,000 cfh (cubic feet per hour) in 36 mbh (thousand British thermal units per hour).
To convert Cubic Feet to Btu's, multiply by 1,000 1 CF = 1,000 Btu's
30000btu convert to watts
300
If your furnace is less then 50000btus then yes.
Typically Natural gas req 10:1 air to gas ratio. therefore 150,000 btuh= 150 cfh so air required would be 1500 cfh air.
230,000 btu