Boiler
- Hydronic distribution is in good condition
- Radiant comfort is valued
- Cooling will remain separate
US SYSTEM COMPARISON
Boiler vs. furnace
Hydronic and forced-air heat differ in distribution, response, cooling integration and replacement scope.
| Decision | Boiler | Furnace |
|---|---|---|
| Distribution | Water through radiators or radiant loops | Air through ducts |
| Cooling integration | Separate system | Can share ducts with central AC |
| Key metric | AFUE | AFUE |
| Scope risk | Piping, pumps, venting | Ducts, airflow, venting |
| Comfort pattern | Radiant / hydronic | Forced air |
Fit check
When each route deserves a closer look
Furnace
- Usable ducts already serve the home
- Central AC integration matters
- Airflow corrections are included
Comparison questions
Keep the assumptions equal.
Is Boiler always cheaper than Furnace?+
No. Equipment, existing infrastructure, local labor, permits, financing and operating cost must be compared with the same home assumptions.
How should I compare Boiler and Furnace quotes?+
Give bidders the same home data and require itemized equipment, labor, electrical or fuel work, permits, commissioning, exclusions and warranties.