What you’d actually save by switching from oil or propane.
Most heat-pump calculators forget the parts that matter: your real fuel bill, your state’s rebates, and what cold weather does to efficiency. This one doesn’t.
Common questions
It depends on what you heat with now. Oil and propane homes usually see the biggest drop in total energy cost, and electric resistance homes see the biggest jump in efficiency. Your electric bill will go up, because electricity is now doing the heating, so the number to watch is the total. The calculator above runs that comparison with your own fuel bill and your state’s rates.
Yes. Modern cold-climate heat pumps keep producing heat down to around −15°F, and we size them for the worst week of February, not the average. Some homeowners keep their existing oil or gas system as a backup for the very coldest days.
How heat pumps work in New EnglandYes. Massachusetts pays the most through Mass Save, and its heat pump rebates require a home energy audit before the install. The largest whole-home rebate also requires taking your oil or gas system offline, while a smaller partial-home rebate covers installs that keep it as backup. New Hampshire’s NHSaves rebates are smaller. The calculator above builds typical rebate amounts for each state into the net cost.
See heat pump incentives by state