A romm 20x9 is 180 square feet. You will need 5000 to 6000 BTUs for this.
About 114,000 BTU per US gallon.
To heat a 390 gallon tank of water from 60°F to 248°F, you would need approximately 1,251,600 BTUs. This calculation takes into account the specific heat capacity of water (1 BTU/lb°F) and the weight of water (8.34 lbs/gallon).
You would need to remove approximately 1200 BTUs of heat to convert a gallon of water to ice. There are 8.34 lb in a gallon of water, which converting to lb-moles is 0.463. The latent heat of crystallization for water is -2583.4 BTU/lb-mole. Multiplying the two together and you get -1197 BTUs, which means you need to remove that amount of heat to convert the gallon of water to ice.
Heating a gallon of water by one degree Celsius requires around 8,337 BTUs (British Thermal Units) of energy. Since 1 cubic foot of natural gas produces about 1,031 BTUs, you would need roughly 8 cubic feet of natural gas to heat a gallon of water by one degree Celsius.
It takes 8.33 BTUs to heat up one gallon of water by one degree Fahrenheit. The amount of energy needed to heat the water to a desired temperature will depend on the starting temperature and the desired final temperature.
One gallon of kerosene will produce 134,000 BTUs of energy when burned.
Depends on the BTUs of the heater.
Type your answer here... there are around 91,600 BTUs in a gallon of propane. The standard BBQ sized bottle of propane contains 11 pounds of propane. Propane weighs about 4.2 pounds per gallon, so that 11 pounds of propane is about 2.5 gallons in its liquid state. That means there is 91,600 BTUs/Gal times 2.5 gallons so a BBQ sized tank of propane contains about 2.3 million BTUs. If your BBQ has a 50,000 BTU burner, on high heat, it will last a bit over 4 and half hours of run time.
1 gallon for #1 Kerosene produces 135,000 BTUs. #1 Kerosene is closely related to #1 Diesel and JP8 (Jet Fuel) - they differ chiefly in additives. Likewise, #2 Kerosene, Diesel #2, and Furnace Oil are similar to one another. #2 oils have higher sulfur content, which leads to more eye and lung irritation from the emissions. However, they are also comprised of longer hydrocarbon chains, and therefore weigh more per gallon and also have somewhat higher energy content.
One gallon of liquid petroleum gas (LPG) contains approximately 91,500 BTUs (British Thermal Units) of energy.
To calculate the BTUs required to raise the temperature of water, you can use the formula: BTUs = (pounds of water) x (temperature change in °F) x (1 BTU). For 15 pounds of water going from 100°F to 120°F, the calculation would be: BTUs = 15 pounds x 20°F x 1 BTU = 300 BTUs.