Calefaction
HEATING, VENTILATION, AND AIR CONDITIONING
Air-conditioning system; Climate control; Indoor climate control; Heater; Air-conditioning systems; Warming and ventilating houses; Calefaction; Ventilating, and Air Conditioning Heating; Heating, Ventilating, and Air Conditioning; Heating, ventilation, and air-conditioning; Califaction; Punkah Louver; Environmental Control; Central hea; HVAC&R; Warm-air heating system; Central heating and cooling; HVACR; Air diffuser; Room heating; HVAC system; Air duct cleaning; TESP; Environmental control; Space heating and cooling; Hvac; Heating and cooling; Heating, ventilation and air conditioning; Space heating; Heating, Ventilation, and Air Conditioning; Heating, ventilating, and air conditioning; Heating, Ventilation and Air Conditioning; Heating load; Air heating system; Central Heating, Ventilation and Air-Conditioning; Central heating, ventilation and air-conditioning; Heating, ventilation and air-conditioning; Central heating, ventilation and air conditioning; Heating and Air Conditioning; Energy efficiency of HVAC systems; Heating Air-Conditioning & Refrigeration; H-vac; HVAC; Heating and air conditioning; Energy-efficient HVAC; Sustainable air conditioning; Sustainable HVAC
·noun The state of being heated.
II. Calefaction ·noun The act of warming or heating; the production of heat in a body by the action of fire, or by communication of heat from other bodies.