HVAC professionals across the country are experiencing a recent change that is driven by energy codes. This change is related to duct-leakage testing on new and often retrofitted HVAC systems. A lot ...

Combustion issues can be a service technician’s most challenging and intimidating problem to diagnose. Unless you’re equipped with the proper skills to tackle these issues, it’s easy to become ...

My company is installing a fire alarm sprinkler supervisory panel (DACT) with one outside horn, one smoke detector and one manual pull box. We will be connecting to switches installed by the sprinkler ...

WHEN Larry and Donna-Marie Acker bought their 25-year-old home in Newport Beach last year, they knew it needed work. What they didn’t anticipate was having to spend $15,000 to replace the duct system.