Hansen explains that age is often one of the most reliable indicators. In the Pacific Northwest, heating systems face damp, ...

You don’t have to spend big to find truly great Black Friday deals. Here are the best Wirecutter-approved picks under $100.

Worried about your HVAC unit? Uncover the signs that your dated unit is (or isn't) just blowing hot air and how to tell if it ...

A decade-old static pressure diagram sent the wrong message, and it took a sharp-eyed contractor to catch it. Here’s a ...