When comparing energy sources to heat your home be aware that not all energies offers the same the same amount of heat by volume. One (1) US gallon (3.78L) of propane gas delivers 91,502 BTU/h of heat, one (1) US gallon (3.78L) of No.2 heating oil delivers 139,400 BTU/h of heat.  You will need to burn 52% more propane fuel to get the same amount of heat as No. 2 heating oil. In layman terms, if you burn 795 US gallons (3,000L) annually to heat your home, you will burn 1,208 US gallons (4,566L) of propane to get the same amount of heat with equivalent efficiency heating appliances. In the case just mentioned, to save any money on your heating bill, the price of propane gas per gallon or litre would need to be more than 50% less than the price of a gallon or litre of heating oil.