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Old 03-02-2010, 09:15 AM   #15
a k
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If you left your Aqua Hot on electric at approx 1300 watts =1.3KW x 24 hrs x 30days at $.10/KW it would be approx $93.00/ month. Cheaper than diesel. and the heater cycles so it wouldn't be on 24 hrs /day.

1KW=3000BTU's not much heat but you are storing it up.
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Old 03-02-2010, 09:26 AM   #16
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Since the heater nozzles on most of the diesel heating unit are rated at about .25/gal per hour, it would be some kind of a miracle to only use .23/gal per day unless it was rarely run or not run everyday. I am not sure where the calculations went wrong, but that would be a bit difficult to achieve.
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Old 03-02-2010, 09:39 AM   #17
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Btu Content of Common Energy Units
  • 1 barrel (42 gallons) of crude oil = 5,800,000 Btu
  • 1 gallon of gasoline = 124,000 Btu (based on U.S. consumption, 2008)
  • 1 gallon of diesel fuel = 139,000 Btu
  • 1 gallon of heating oil = 139,000 Btu
  • 1 barrel of residual fuel oil = 6,287,000 Btu
  • 1 cubic foot of natural gas = 1,028 Btu (based on U.S. consumption, 2008)
  • 1 gallon of propane = 91,000 Btu
  • 1 short ton of coal = 19,988,000 Btu (based on U.S. consumption, 2008)
  • 1 kilowatthour of electricity = 3,412 Btu
The above shows 1 gallon of propane has 65% btu's as 1 gallon of diesel
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Old 03-02-2010, 06:33 PM   #18
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I have the AH system and like it very much, never a problem with it.
The system I have it heats water that goes to little raditors that has a fan behind them. When it call for heat the AH system keeps the water at a certain temp. The fans at the little raditors will come on when the temp reaches what is set at the thermostats. The fans will cycle several times before the AH furnnace will come on, don't know how much is uses, I have had several LP heaters if it is running you are using LP
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