Heat Pump vs. Boiler in Vermont: An Honest Comparison

I install both systems, which means I have no financial reason to push you toward one or the other. The right answer for a Vermont home depends on your existing distribution system, your fuel costs, your comfort priorities, and whether you want to reduce fossil fuel use. Here’s an honest breakdown.

Modern cold-climate heat pumps (such as Mitsubishi Hyper Heat) operate efficiently down to -13°F, making them viable as primary heating in Vermont. A heat pump's COP (coefficient of performance) of 2.0–3.0 means it delivers 2–3 units of heat per unit of electricity - compared to a 95% AFUE boiler that delivers 0.95 units of heat per unit of fuel. Vermont's electricity rate of approximately $0.22/kWh affects the economic comparison relative to propane or natural gas prices.

When a Boiler Is the Right Answer

When a Heat Pump Is the Right Answer

A heat pump makes sense when:

you have or are adding forced-air ductwork;
you want both heating and cooling from one system;
you heat with propane (expensive per BTU) and electricity is comparatively economical;
you want to reduce carbon emissions and qualify for Efficiency Vermont incentives;
you're building new and can design the distribution system from scratch.

The Hybrid Option

Many Vermont homeowners choose a hybrid system – a heat pump handles heating down to about 25°F, and a backup boiler or electric resistance element handles the coldest days. This captures the efficiency advantage of the heat pump for the majority of the heating season while maintaining redundancy for extreme cold.

Frequently Asked Questions

Can a heat pump replace a boiler entirely in Vermont?

A cold-climate heat pump like the Mitsubishi Hyper Heat can operate as the primary heat source in
Vermont, but most Vermont HVAC contractors (including us) recommend a backup for the coldest weeks of
the year, particularly if the home has high heat load or poor insulation.

Which system has lower operating cost in Vermont?

It depends on your fuel costs. If you heat with propane ($4–5/gallon in Vermont), a heat pump is almost
always less expensive to operate. If you heat with natural gas, the comparison is closer and depends on your
local electricity rate.

Will a heat pump work with my existing baseboard system?

Ductless heat pumps (mini-splits) work independently of baseboard systems - they heat and cool
individual rooms or zones via wall-mounted air handlers. They do not distribute heat through your existing
baseboard. For baseboard-compatible heat distribution, a hydronic heat pump connected to the existing
piping is an option, though less common.

Talk to a Contractor Who Installs Both

You shouldn’t have to get a boiler quote from one company and a heat pump quote from another. Call (802)233-0790 or contact us online and we’ll evaluate your home for both options, give you honest cost and operating projections, and let you decide.