Heating, Ventilation, A/C
- Air Conditioning Unit:
- central unit new units last longer – 15-20 years
- window unit - 10 years
- Unit Compressor - 15 years
- Humidifier Gateway recommends immediate disconnection - 8 years
- Dehumidifier – 8 years
- Water Heater: depends on quality of water and type of lining
- electric - 14 years
- gas - 11-13 years
- Tankless Water Heater - 20 years
- Forced Air Furnace, heat pump - 15 years
- Duct Work:
- plastic - 15 years
- galvanized - 30 years
- Rooftop Air Conditioner - 15 years
- Boiler - 30 years
- Gas Furnace - 18 years
- Unit Heater, gas or electric - 13 years
- Radiant Heater:
- electric - 15 years
- hot water or steam - 25 years
- Air Terminals: diffuser, grill, or register - 27 years
- Induction and Fan-coil units - 20 years
- Damper - 20 years
- Fan:
- centrifugal - 25 years
- axial - 20 years
- ventilating roof mounted - 20 years
- Coils:
- DX, water or steam - 20 years
- electric - 15 years
- Heat Exchanger - 24 years
- Molded insulation - 20 years
- Pump, Sump and Well - 10 years
- Burner - 21 years
- Thermostat – 8-25 years