- AFUE
- Air Changes Per Hour
- Air Cleaner
- Air Conditioner
- Air Filtration System
- Air Handler, Air Handling Unit
- Allergen
- All-in-One System
- Capacity
- Centrifugal Fan
- CFM
- Chiller
- Coil
- Compressor
- Condenser
- Condenser coil
- Constant Air Volume
- Control
- Cycling
- Damper
- Deep Lake Water Cooling
- Dehumidifier
- Diffuser
- Dry Bulb Temperature
- Dry Bulb Thermometer
- Duct
- Ductwork
- Heating Coil
- Heat Exchanger
- Heat Gain, Heat Load, Heat Loss
- Heat Pump
- Heat Transfer
- Hepa Filter
- Home Automation
- HSPF
- Humidifier
- Humidity
- HVAC
- Hybrid Comfort System