HVAC systems are complex machines operating in harsh conditions year-round. Like automobiles, they require regular maintenance to perform efficiently and last their designed lifespan.
HVAC System Components and Lifespans:
Heating Systems:
- Gas furnace: 15-20 years (with maintenance)
- Heat pump: 10-15 years
- Boiler: 15-30 years
- Electric resistance: 15-20 years
Cooling Systems:
- Central air conditioning: 12-15 years
- Heat pump cooling: 10-15 years
- Ductless mini-splits: 15-20 years
Distribution Systems:
- Ductwork: 20-25 years
- Thermostats: 10-15 years
- Air handlers: 15-20 years
The Real Cost of HVAC Neglect:
Annual Energy Waste from Poor Maintenance:
- Dirty filters: 5-10% efficiency loss ($110-$220/year)
- Dirty coils: 5-15% efficiency loss ($110-$330/year)
- Low refrigerant: 10-20% efficiency loss ($220-$440/year)
- Leaky ducts: 20-30% energy loss ($440-$660/year)
- Total Annual Waste: $880-$1,650Premature Replacement Costs:
- Well-maintained system lifespan: 15-20 years
- Neglected system lifespan: 8-12 years
- Premature replacement cost: $5,000-$15,000
- Maintenance ROI: 2,500-5,000%