Furnace vs Boiler in Kane County, Illinois
When a furnace makes sense
If your house already has ducts, a furnace is the easier path, since that ductwork can also carry air conditioning in the summer. Kane County winters push down to 18°F, and a furnace brings air up to temperature quickly on those nights. Most homes in this region are set up this way already, which keeps the choice simple.
When a boiler makes sense
If your home heats through radiators or in-floor pipes rather than ducts, a boiler is the natural fit, and it runs about 5% cheaper here than a furnace does. Boiler heat tends to hold steadier through the 8 months a year this area needs heat, which matters on the coldest nights. It won't do anything for summer cooling, so you'd still need a separate way to handle that.
When a furnace makes sense
If your house already has ducts, a furnace is the easier path, since that ductwork can also carry air conditioning in the summer. Kane County winters push down to 18°F, and a furnace brings air up to temperature quickly on those nights. Most homes in this region are set up this way already, which keeps the choice simple.
When a boiler makes sense
If your home heats through radiators or in-floor pipes rather than ducts, a boiler is the natural fit, and it runs about 5% cheaper here than a furnace does. Boiler heat tends to hold steadier through the 8 months a year this area needs heat, which matters on the coldest nights. It won't do anything for summer cooling, so you'd still need a separate way to handle that.
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 Kane 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 18°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 ducts, a furnace is the easier path, since that ductwork can also carry air conditioning in the summer. Kane County winters push down to 18°F, and a furnace brings air up to temperature quickly on those nights. Most homes in this region are set up this way already, which keeps the choice simple.
When a boiler makes sense
If your home heats through radiators or in-floor pipes rather than ducts, a boiler is the natural fit, and it runs about 5% cheaper here than a furnace does. Boiler heat tends to hold steadier through the 8 months a year this area needs heat, which matters on the coldest nights. It won't do anything for summer cooling, so you'd still need a separate way to handle that.
A Kane County contractor will price both against your own house, your ductwork and your panel.
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