C-20 Warm Air Heating Ventilating and Air Conditioning Contractors License – HVAC
The Warm Air, Heating and Ventilating contractors license covers heating and air conditioning systems. This includes residential and commercial applications. The State defines the C-20 Warm Air Heating, Ventilating and Air Conditioning license as follows:
A warm-air heating, ventilating and air-conditioning (HVAC) contractor fabricates, installs, maintains, services and repairs warm-air heating systems and water heating heat pumps, complete with warm-air appliances; ventilating systems complete with blowers and plenum chambers; air-conditioning systems complete with air-conditioning unit; and the ducts, registers, flues, humidity and thermostatic controls and air filters in connection with any of these systems. This classification shall include warm-air heating, ventilating and air-conditioning systems which utilize solar energy.