HVAC furnace lifespan: 15–25 years
A hvac furnace typically lasts 15–25 years. The most common failure point is heat exchanger cracking; igniter and blower motor failure. Typical manufacturer warranty: typically 10–20 years on the heat exchanger.
- Typical lifespan
- 15–25 years
- Common failure point
- Heat exchanger cracking; igniter and blower motor failure
- Typical warranty
- Typically 10–20 years on the heat exchanger
These are general published reference ranges, not a model-specific lookup; always verify against the manufacturer's own documentation. Age and model identity cannot establish safety. Record your own installation or manufacture date, inspection observations, and a replacement-cost range in the ApplianceAgeBook workspace to plan a specific reserve for your unit.
Plan a hvac furnace reserve