We would need to know the wattage of the floated tank deicer to compare. But the difference is likely to depend on how well they are insulated. The tub would probably be easier to insulate (lag), the trough would be more open to the air and lose more heat.
3 gallons because it has more heat energy and it gets warmer
How much energy is in one gallon of gas, compare this to quantity of energy in one gallon of rocket fuel, voila, your answer!!!
One gallon of kerosene will produce 134,000 BTUs of energy when burned.
One US gallon = 114,000 to 115,000 Btu = 121MJ depending on type.
Depends on how you use it.. According to Einsteins equation E=mc^2 (energy = mass * the speed of light squared), 1 gallon of water is equal to 326 petajoules. The world consumes 15 terawatts (54 petajoules / hour). -HowStuffWorks.com 1 Gallon of water = Enough energy to satisfy the world's energy needs for ~6 hours.
it costs like $15.00 per gallon
couple hundred
Gasoline can generate roughly 20K BTU/lbm. There are 6 lbm per US gallon.
The Energy Department estimates the average cost per gallon of gasoline to be $2.84 in 2010.
Not at all energy efficient. They go about 8 miles per gallon...Talk about Cha-ching! $$$
35%
Depends on how you use it.. According to Einsteins equation E=mc^2 (energy = mass * the speed of light squared), 1 gallon of water is equal to 326 petajoules. The world consumes 15 terawatts (54 petajoules / hour). -HowStuffWorks.com 1 Gallon of water = Enough energy to satisfy the world's energy needs for ~6 hours.