The Original, Often Copied, But Never Duplicated, Common Sense Approach to HVAC

Low suction pressure is high on the top ten list of air conditioning issues that technicians run across.

Troubleshooting 24vac fuse issues, or..."Why does the (expletive Deleted) transformer fuse keep popping?"

As of June 8th 2020 our YouTube channel has 1,730 subscribers and has logged 89,157 views!!! And guess what! We owe it all to you, our...

Poor plenums can ruin an otherwise great duct system and cause many system issues

Unfortunately, most technicians have a fascination with superheat and don’t give a moment’s thought to superheats cousin, subcooling.

How to measure 0-10 volt DC signals in HVAC controls systems

There are six primary causes of high space humidity.

Yup, Zen HVAC is changing with the times; a new look and new media, but the same great content!