Contact Customer Service

Our Service Promise

Our vision is to provide comfort and peace of mind to our customers in the North American HVAC market with compelling solutions created by passionate people.

Customer Service Operating Hours

Monday - Thursday, 8am - 6pm EST
Friday, 8am - 5pm EST
Residential Tel: 800-283-3787
Commercial Tel: 800-326-1400
Fax: 603-965-7568
Tech Support Fax: 603-965-7581

Customer Support E-mail Addresses

AC parts only:
All Other Residential Products:
Commercial Products:

Technical Support E-mail Addresses

Boiler & Tankless:

Commercial Applications & Engineering

Commercial AC:
Commercial Heating:

Warranty & Returns Support E-mail Addresses

Freight Claims:
Warranty & Returns:


65 Grove Street, Watertown, MA 02472
555 NW 65th Court, Fort Lauderdale, FL 33309
50 Wentworth Avenue, Londonderry, NH 03053

Contractor Website

Product Inquiry Form

Have questions about our products and systems? Submit your inquiry here and have all your questions answered!

Product Inquiries