Organizations
- H.A.R.D.I. – (Heating, Air Conditioning & Refrigeration Distributors International)
- A.S.H.R.A.E. – (American Society of Heating, Refrigerating & Air Conditioning Engineers)
- H.R.A.I. – (Heating, Refrigeration & Air Conditioning Institute of Canada)
- H.V.A.C.R. – (Heating, Ventilation, Air Conditioning Refrigeration Association)
- E.A.S.A. – (Electrical Apparatus Service Association)
- R.S.E.S. – (Refrigeration Service Engineers Society)
- N.A.P.S.A. – (National Appliance Parts Supplier Association)
- HPBA – (Hearth, Patio & Barbecue Association)