Want to save on electrician's fees for outdoor AC unit wiring? Then you must wire your new air conditioner or mini-split ...

Well-known industry author and instructor Jim Johnson is offering a new video for technicians who want to sharpen their troubleshooting skills. "This HVAC training video program, is available in DVD ...

GeoT*SOL is a professional and user-friendly tool for planning and designing heat pump systems. The program offers you the choice between different heat sources, operating modes and numerous system ...

Electricity flow is generally invisible, silent, and not something that most humans want to touch, so understanding how charge moves around can be fairly unintuitive at first. There are plenty of ...

Transistors are the fundamental building blocks behind today's electronic revolution, powering everything from smartphones to powerful servers by controlling the flow of electrical currents. But ...

Most people know that when you flow an electric current through a wire, the wire heats up. Most of our readers will also know that heat is the killer of many of our favorite electronic devices. That's ...

Can variable speed pumps be used on compensated heating circuits, in place of three port and pressure relief valves. Are they cost effective, and how is the pump controlled? Variable speed driven ...

When power generators transfer electricity, they lose almost 10 percent of the generated power. To address this, scientists are researching new diamond semiconductor circuits to make power conversion ...