WebA typical gas tank water heater is only 59% efficient. So it takes 525 ÷ 59% = 890 Btu's to heat a gallon of water in a gas tank. 890 Btu's is 0.0089 therms. So we've got 0.0089 therms to heat a gallon of water, or 0.0089 x 40 = 0.356 therms to heat a 40-gallon tank. At $1.42/therm, it costs 0.356 x $1.42 = $0.51 to heat a 40-gallon tank. WebThe two differences between a 36,000 BTU water heater and a 40,000 BTU water heater is heating capacity and tank size. Let’s take a look at each of them below. Heating Capacity. The most obvious difference is in the heating capacity of both. Obviously, the 36,000 BTU water heater is not capable of heating up quite as much water in an hour as ...
British thermal unit - Wikipedia
WebDec 1, 2024 · How many BTUs does it take to raise a steam 1 degree? You have all heard of the BTU of heat energy (British Thermal Unit), it takes one BTU to raise one pound of water one degree Fahrenheit. So if the water in the pan on the stove is put in at 32°F, it will then require 180 BTU’s to bring the water to boiling temperature, or 212°F. WebOct 11, 2024 · 1 gallon of heating oil yields 138,500 BTU and will cost you $2.75 1 gallon of propane yields 91,451 BTU and will cost you $2.304 In the end, you can see that propane yields 47,048 fewer BTUs per gallon than heating oil. ionos mail download
Units and calculators explained - Energy Information Administration
WebHow many BTU does it take to heat water? One BTU is the amount of heat energy required to raise one pound of water by 1ºF. Water weighs 8.33 pounds per gallon so we can … WebNov 19, 2014 · The BTU multiplier in the formula is 500. Because BTUs are measured per hour, the 500 comes from one gallon of water that weighs 8.33 pounds, times 60 minutes … WebDec 25, 2024 · 36,000 BTUs. A common input is 34,000 BTUs on a 40-gallon tank and 36,000 BTUs on a 50-gallon tank. The higher the BTU input and efficiency, the faster the … ionos mail options