heating
ventilation
furnace
air conditioning
A/C
cooling
heat loss heat gain
air system design
IAQ
indoor air quality
HRAI
Residential and Small Commercial Training for HVACR Industry Professionals
About HRAI
Founded in 1968, the Heating, Refrigeration and Air Conditioning Institute of Canada (HRAI) is a non-profit national trade association that represents more than 1,150 member companies in the heating, ventilation, air conditioning and refrigeration (HVACR) industry. Our members include manufacturers, wholesalers and contractors who employ more than 50,000 people in Canada and represent an industry that delivers more than $7B annually to the Canadian economy.