A.J. LeBlanc Heating has provided this tool for our customers in an effort to help them make an educated decision when converting to a different heating fuel. A.J. LeBlanc Heating does not sell heating fuel but we can certainly recommend reliable heating fuel suppliers. Our heating fuel comparison calculator below will calculate how many BTUs per dollar each heating fuel provides at today's current rates. The results will help a customer select the best heating fuel for their particular scenario. Because prices of fuel constantly rise and fall we have not provided default values for the cost per gallon, kwh or therm. The NH Office of Energy and Planning updates fuel prices regularly on their website. Our heating fuel comparison calculator can also be used to compare furnace efficiency and BTUs per dollar.