Found this calcluator for fuel costs http://www.hearth.com/fuelcalc/findoil.html
Great, Gary. Everyone should bookmark that and use when talking to customers about different fuels.
Right now for 35 out, it says my 80% furnace would cost $13.25 for a million BTUs or my heat pump would cost $4.10 for the same heat. Guess what's on
For heat pump, find out COP and use that in %. For COP of 3 which I'd estimate I'm at with this outdoor temp, I put 300%.
Here's another calculator at http://188.8.131.52/hydronic/hea/FuelCalc.htm that even lists the btu's for a kilowatt of electricity, a therm of natural gas, a gallon of propane and a gallon of #2 fueloil. Also says the calculator is available at http://www.hydronicnetwork.net/ for use on a laptop.
Good links Mech
The way we build has a greater impact on our comfort, energy consumption and IAQ than any HVAC system we install.