Service Providers: 
Climec Residential Inc.
Direct Energy Essential Home Services

Enbridge Inc.

Heating & Air Conditioning Manufacturers:
Trane Canada

Amana

Goodman

Indoor Air Purification:
Honeywell
L2B Incorporated

Water Heaters:
Giant
GSW
Rheem

Energy Providers:
Enbridge
Hydro Ottawa

Hydro One Network

Additional Sources for Information:
Canada Mortgage & Housing
Heating & Air Conditioning Contractors of Ontario
Technical Standards and Safety Authority