One of the most common questions we hear from homeowners in Southern NH and Northern MA is whether they should install a heat pump or stick with a traditional furnace. The answer depends on your home, your budget, and your priorities — but the conversation has shifted dramatically in recent years as heat pump technology has improved.
Traditional gas furnaces remain a reliable and cost-effective option, especially in areas with access to natural gas. A modern high-efficiency furnace can achieve 95-98% AFUE ratings, meaning nearly all the fuel is converted to heat. Installation costs tend to be lower than heat pumps, and furnaces produce very warm air that feels comfortable even on the coldest days.
Heat pumps, on the other hand, offer a compelling advantage: they provide both heating and cooling in a single system. Instead of burning fuel, they move heat from the outdoor air into your home, which makes them remarkably efficient. For every unit of electricity consumed, a heat pump can deliver two to three units of heating energy. This translates directly to lower operating costs.
The concern about heat pumps in cold climates is largely outdated. Modern cold-climate heat pumps, such as those from Mitsubishi and Daikin, are rated to operate efficiently at temperatures well below zero degrees Fahrenheit. While extreme cold does reduce their efficiency somewhat, they still outperform electric resistance heating by a wide margin.
There is also the environmental angle. If reducing your carbon footprint is important to you, a heat pump powered by the electrical grid produces significantly fewer emissions than burning natural gas or oil, especially as the grid continues to add renewable energy sources.
From a cost perspective, heat pumps have a higher upfront cost, but federal tax credits and state rebates in both New Hampshire and Massachusetts can offset a significant portion of the investment. When you factor in the combined heating and cooling capability, many homeowners find the total cost of ownership is comparable to or lower than a furnace plus separate AC system.
We recommend heat pumps for most homeowners who are replacing both heating and cooling equipment, especially those currently using oil or propane. For homes with existing natural gas infrastructure and a relatively new AC system, a high-efficiency furnace may still be the most cost-effective choice. We are happy to run the numbers for your specific situation.
