Heating is done with heat pumps and gas furnaces. Ventilation is usually flexible ductwork however any holes can make the thermostat run without shutting the HVAC off. Air Conditioning is done with AC units and heat pumps that use fans to pull air into Freon vapors. Air Heat Raleigh services HVAC systems in Cary and Apex.
HVAC thermostat replacement in Raleigh is considered HVAC service. Freon recharge and HVAC coil replacement are two more examples of HVAC service. Air Heat Raleigh HVAC fan motor and compressor service are more examples of HVAC service.