Upstairs, Downstairs: Conditioning multiple rooms with home zoning. Finding a home that requires the same amount of cooling and heating...

Join us on Saturday February 2nd between 10-11 AM in our Exeter showroom to learn about the latest ductless mini split heat pump...

The start of a new year is a great time to take inventory and make plans for the year to come. While you’re budgeting for family...

Just in time for the holiday season - please join us in congratulating The Wilcox family from Kittery, ME as the winner of our 2018 Ugly...

Most people have head of ductless heating and cooling systems, and they have probably seen the small, indoor devices installed high on...

Tired of spending a small fortune to heat your home during the long New England winters? Below are 20 things that you can do yourself to...

Great news for NH Electric Co-op customers! They are still fully funded and offer a 2% APR Financing program! $500 per TON in cash back...

We are in full Fall mode here at Key Heating & Air Conditioning. Both our Exeter and Wolfeboro NH showrooms have seen an increase in foot...

Has your furnace or home heating system been on the fritz and had difficulties keeping you warm during the long New England winters? Are...

KEY HEATING & AIR CONDITIONING CELEBRATES SILVER ANNIVERSARY & NEW VP New Hampshire family-owned & operated HVAC company celebrates...

In celebration of Key HVAC's 25 Year History we've taken over the Seacoast Online website. Please take time to vote Key HVAC the 2018...

We are celebrating our 25th year in business by collecting 25,000 cans and non perishable foods for our local NH food banks this summer!...

Did you know the geothermal tax credits are back?! We are so excited. Here is the breakdown and the important dates you need to know if...