Furnace vs Boiler in St. Tammany Parish, Louisiana
When a furnace makes sense
If your home already has ductwork or central air, a furnace is the straightforward choice, and it will keep up fine with nights averaging 43°F. Winters here only last about five months, so a system that heats up fast and shuts off again suits the climate. It also lets you run central air conditioning off the same ducts.
When a boiler makes sense
A boiler fits a home already set up for one, with radiators or in-floor piping rather than ducts. It runs about 5% cheaper than a furnace at Louisiana gas prices, and that steady heat suits nights averaging 43°F. It heats only, so cooling would need a separate system.
When a furnace makes sense
If your home already has ductwork or central air, a furnace is the straightforward choice, and it will keep up fine with nights averaging 43°F. Winters here only last about five months, so a system that heats up fast and shuts off again suits the climate. It also lets you run central air conditioning off the same ducts.
When a boiler makes sense
A boiler fits a home already set up for one, with radiators or in-floor piping rather than ducts. It runs about 5% cheaper than a furnace at Louisiana gas prices, and that steady heat suits nights averaging 43°F. It heats only, so cooling would need a separate system.
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 St. Tammany Parish.
Most homes here date to 1995, already built with ductwork, which makes a furnace the simpler install over adding radiators for a boiler.
If your home already has radiators or in-floor heating loops instead of ductwork, a boiler is still the better fit.
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 |
| Handles a 43°F night | Yes | Yes |
Sources: U.S. Energy Information Administration, U.S. Department of Energy, NOAA
When a furnace makes sense
If your home already has ductwork or central air, a furnace is the straightforward choice, and it will keep up fine with nights averaging 43°F. Winters here only last about five months, so a system that heats up fast and shuts off again suits the climate. It also lets you run central air conditioning off the same ducts.
When a boiler makes sense
A boiler fits a home already set up for one, with radiators or in-floor piping rather than ducts. It runs about 5% cheaper than a furnace at Louisiana gas prices, and that steady heat suits nights averaging 43°F. It heats only, so cooling would need a separate system.
A St. Tammany Parish contractor will price both against your own house, your ductwork and your panel.
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