Furnace vs Boiler in Lake County, Indiana
When a furnace makes sense
If your house already has ductwork, a furnace is the straightforward choice. It also gives you central air conditioning through the same ducts when summer comes, which a boiler can't do. With winter nights here averaging 20°F for months at a stretch, you want a system that matches what your home is already set up for.
When a boiler makes sense
If your home heats with radiators or in-floor pipes instead of ducts, a boiler is the right fit, and it runs about 5% cheaper here than a furnace. Radiant heat also tends to feel steadier through the long stretch of cold, since Lake County needs heat for about 8 months of the year. Just know that a boiler only heats. You'll need a separate system for cooling.
When a furnace makes sense
If your house already has ductwork, a furnace is the straightforward choice. It also gives you central air conditioning through the same ducts when summer comes, which a boiler can't do. With winter nights here averaging 20°F for months at a stretch, you want a system that matches what your home is already set up for.
When a boiler makes sense
If your home heats with radiators or in-floor pipes instead of ducts, a boiler is the right fit, and it runs about 5% cheaper here than a furnace. Radiant heat also tends to feel steadier through the long stretch of cold, since Lake County needs heat for about 8 months of the year. Just know that a boiler only heats. You'll need a separate system for cooling.
Furnace
- Runs on
- Natural gas
- What it does
- Heats only
- Tax credit
- No federal tax credit since the end of 2025
Sources: U.S. Department of Energy · Internal Revenue Code
Boiler
- Runs on
- Natural gas
- What it does
- Heats only
- Tax credit
- No federal tax credit since the end of 2025
Sources: U.S. Department of Energy · Internal Revenue Code
Furnace wins in Lake County.
In the Great Lakes states, 78.8% of homes heat with a furnace, so most already have the ductwork it needs.
If your home already has radiators or in-floor pipes instead of ductwork, a boiler is still the better choice.
Find a contractor| Compared on | Furnace | Boiler |
|---|---|---|
| Cost to run here | Costs more to run | About 5% less to run |
| What it does | Heats only | Heats only |
| Homes in the Great Lakes states that heat with one | 78.8% | 7.7% |
| Handles a 20°F night | Yes | Yes |
Sources: U.S. Energy Information Administration, U.S. Department of Energy, NOAA
When a furnace makes sense
If your house already has ductwork, a furnace is the straightforward choice. It also gives you central air conditioning through the same ducts when summer comes, which a boiler can't do. With winter nights here averaging 20°F for months at a stretch, you want a system that matches what your home is already set up for.
When a boiler makes sense
If your home heats with radiators or in-floor pipes instead of ducts, a boiler is the right fit, and it runs about 5% cheaper here than a furnace. Radiant heat also tends to feel steadier through the long stretch of cold, since Lake County needs heat for about 8 months of the year. Just know that a boiler only heats. You'll need a separate system for cooling.
A Lake County contractor will price both against your own house, your ductwork and your panel.
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