Converting an Oil Boiler to Gas or a Heat Pump in Massachusetts: Cost & Savings

1. What Happens When You Replace an Oil Boiler?

Replacing an oil boiler is not always a simple equipment swap. The work depends on the new heating system you choose.

An oil-to-gas conversion replaces oil-fired equipment with gas-fired heating equipment. Natural gas must be available at your property before this option makes sense.

A heat pump works differently. Instead of burning fuel, it uses electricity to move heat into or out of your home. As a result, the same system can provide both heating and cooling.

Depending on the home, a heat pump can use existing ductwork. Another option is a ductless system with indoor units in different areas of the house.

Akian provides boiler services, heat pump installation, ductless systems, and oil-to-gas heating conversions in Greater Boston.

Do You Have to Remove the Oil Boiler?

Not always. Some homeowners install a heat pump but keep their existing boiler for supplemental heat. This is often called a hybrid or partial-home heating setup.

Another option is a whole-home heat pump. In this setup, the heat pump becomes the home’s main heating and cooling system.

2. How Much Does an Oil Boiler Conversion Cost?

The cost varies from home to home. Therefore, it is difficult to give one useful price without first evaluating the property.

For an oil-to-gas conversion, several factors can affect the price. These include gas availability, the new heating equipment, venting, controls, and the condition of the existing heating system.

The amount of work needed to move away from the existing oil equipment can also affect the project cost.

What Affects Heat Pump Installation Cost?

Heat pump costs depend on different factors. For example, the size of the home and the number of heating zones can affect the system design.

Existing ductwork also matters. A home without suitable ducts may need a ductless system instead.

Electrical work, weatherization, and the number of indoor and outdoor units can also change the total project cost.

Mass Save uses about $22,000 as an average whole-home air-source heat pump installation example. This figure is based on its 2022 program data. It is an example, not a quote for your home.

3. Can Gas or a Heat Pump Save Money Compared With Oil?

Both options may change your long-term heating costs. However, the result depends on more than the price of the new equipment.

Energy prices, home insulation, system efficiency, maintenance, and heating habits all affect operating costs.

Potential Savings From Natural Gas

Switching to natural gas removes the need for regular heating-oil deliveries. It also allows homeowners to replace an older oil boiler with modern gas heating equipment.

Still, fuel prices change over time. For that reason, today’s oil and gas prices should not be used as a guarantee of future savings.

Potential Savings From a Heat Pump

A heat pump uses electricity instead of burning heating oil. It can also provide air conditioning during the summer.

This is important when comparing costs. A heat pump may replace both a heating system and some or all of the home’s cooling equipment.

Mass Save states that modern cold-climate heat pumps can operate at two to three times the efficiency of a boiler or furnace. Many qualifying systems can also provide heat at very low outdoor temperatures.

Actual savings will still depend on the home, equipment, electricity rates, weather, and how the system is used.

Look Beyond the Fuel Price

Do not compare oil, gas, and electricity prices alone. Instead, compare the complete heating and cooling needs of your home.

Insulation and air sealing matter too. A home that loses less heat usually requires less energy to stay comfortable.

4. What Heat Pump Rebates Are Available in Massachusetts?

Massachusetts incentives can reduce the cost of a qualifying heat pump installation.

For 2026, Mass Save lists a whole-home air-source heat pump rebate of $2,650 per ton, up to $8,500.

The partial-home rebate is $1,125 per ton, up to $8,500. A basic rebate of $250 per ton, up to $2,500, is also available for certain qualifying installations.

These incentives have eligibility requirements. Equipment, weatherization, installation, documentation, and other program rules may apply.

Therefore, homeowners should not assume that every project will qualify for the maximum rebate.

You can also review Akian’s Massachusetts HVAC rebate information when planning a heating upgrade.

Whole-Home vs. Partial-Home Rebates

A whole-home heat pump is designed to become the home’s main heating and cooling system.

A partial-home system works alongside another heating source. For example, you may keep your existing boiler and use it when additional heat is needed.

Mass Save has different requirements for these two approaches. Some partial-home installations that keep fossil-fuel heating may also require approved integrated controls.

If you want to keep your boiler, you can learn more about heat pump options from Akian.

5. Should You Choose Gas or a Heat Pump?

There is no single answer for every Massachusetts home. The better option depends on your existing heating system, utility access, budget, and comfort needs.

Compare the Complete Project

Before choosing a system, compare the full installation cost. Also consider expected energy use, rebates, electrical work, heating distribution, and cooling needs.

Finally, decide whether you want to remove the oil boiler completely or keep it as a backup heating source.

Akian offers heating installation services in Massachusetts and works with boiler, heat pump, ductless, and hybrid heating systems.