The next generation of Comfort Alertâ„¢ diagnostics, used for troubleshooting residential heat pumps and air conditioning systems, is now available. Installed in an outdoor-unit electrical box, the ...

If defrost isn’t working, something in the chain is broken. This step-by-step approach shows you exactly where to look and what to test.

With more than 20 years' experience in energy efficiency and sustainability, Karen cuts through the jargon to explain environmental impacts and help you find greener options. A switch from traditional ...