HRAI is a partnership of industry sector organizations that represents Heating, Ventilation, Air Conditioning and Refrigeration (HVACR) manufacturers, wholesalers and contractors who provide the Canadian public with products and services for indoor comfort and essential refrigeration processes.

We offer an array of services and opportunities for individuals and organizations interested in furthering the concepts of higher environmental performance in the buildings sectors. With an eye on community planning, our focus is both new and existing buildings in the commercial/institutional and residential sectors.

The Air-Conditioning and Refrigeration Institute (ARI) is the national trade association representing manufacturers of more than 90 percent of US-produced central air-conditioning and commercial refrigeration equipment. Brochure: Heat, Cool, Save Energy with a Heat Pump Explains how heat pumps work, save energy, both heat and cool, including both air-source and water-source heat pumps.

A building professional's guide to more than 90 environmentally-appropriate technologies and practices. Architects, engineers and buildings managers can improve the energy and resource efficiency of commercial, industrial and multi-unit residential buildings through the use of the technologies and practices described in this web site.

The Canadian Water and Wastewater Association (CWWA) was established in 1986 to represent the common interest of Canada's municipal water and wastewater systems to federal and interprovincial bodies with respect to policies, programs, national codes, standards, and legislation. CWWA's membership has expanded to include other than municipal systems, giving our members an even stronger voice in Ottawa.