How to Use This Directory

Manufacturers do not usually sell to homeowners directly, and most will refer you to a local dealer. What they are genuinely useful for is the things a dealer sometimes gets wrong: confirming that a model exists and is current, getting the actual installation manual and engineering data, checking warranty terms and registration deadlines, and finding an authorised installer rather than whoever answers first.

HVACPool is not affiliated with any company listed here. Nobody has paid to appear, and the order is not a ranking. Company names and trademarks belong to their owners and are used here for identification.