{Sigh} I hate English units.
A BTU is defined as the amount of heat required to raise the temperature of 1 lb of water by 1 deg F.
The basic relation is
Q = mcdT
Heat = mass * heat capacity * change in temperature.
A gallon of water weighs about 8 lb, so you're talking about 500,000 gal * 8 lb/gal = 4 million pounds.
The constant c for water, by the definition given above is 1 Btu/lb-deg F.
So
Q = 4 million pounds * 1 Btu/lb-degF * 32 deg F = 128 million BTU
Note: 500,000 gal should be changed to 1250 gal or 3.2 million BTU?
The specific heat of water is 1 BTU per pound per degree Fahrenheit. There are 8.3378 lbs/gallon at 60 degrees, which equals 3251.742 pounds of water. The number of BTUs to raise it 188 degrees is then 611,327.496 BTUs.
Approx 8090 BTU
91,333 BTUs in 1 gallon of propane
A BTU is the amount of heat required to heat or cool 1 lb of water 1 degree, water freezes at 32F so it should not require any more than 1 degree to be below freezing. There are 8lbs in1 gallon of water, so 8 BTU's will lower a gallon(8 lbs) 1 degree.
That will completely depend on how much water there is.
134,000 BTUs per gallon
6,520 Btus
Approx. 93,000
25
About 114,000 BTU per US gallon.
2250
BTU: British Thermal Unit, the amount of energy it takes to raise one pound of water one degree Fahrenheit. In this case 500g(x aproximatly 8 pounds per gallon) or 4000 pounds x 70(the difference from 5 degrees to 75 degrees), which equals 280,000 BTUS
For regular gasoline, 125,000 BTU per US gallon
jet fuel kerosene is about 126,000 BTU per US gallon
You can assume two temperatures, and calculate the amount of energy required to heat the water from one temperature to the other. Then convert that to BTU.
313 Btu
One gallon of kerosene will produce 134,000 BTUs of energy when burned.
100 BTU if it's Fahrenheit
Depends on the BTUs of the heater.
970
8.33 btu if the gallon is US measure, 10 btu if the gallon is british measure. A btu is the amount of heat required to raise 1 pound of water 1 degree fahrenheit at atmospheric pressure (14.696 psia).
That depends on what the starting temperature of the water is,and what temperature you want it to reach.If you expect to get a number, you must first give the necessary numbers.
Depending on the fuel grade and blend, about 114,000 - 125,000.
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)
1 gallon of Propane ~= 4.23 lbs ~= 91500 Btus 1 lbs of Propane ~=22000 Btus 20 lb tank of propane holds approx 4 gallons of propane (approx 366000 BTUs) Hope this helps/