Articles by Bill Johnson

Btu Buddy 128: Why a Heat Pump?

The season was getting colder and heating calls were beginning to come in. Bob and Tim were riding to a large residence that had three heat pumps to provide heating and cooling for the structure and Tim asked a question, “Why are heat pumps so popular?”


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Btu Buddy 127: A Hunting TXV

Bob and Tim were doing a routine service contract call. They had fastened gauges to the compressor at the condensing unit and had a temperature lead fastened to the suction line at the evaporator coil. They were observing the pressures and temperatures and Tim said, “The suction pressure is not stable. Isn’t it supposed to be stable during a long running cycle?”


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Btu Buddy 124: Superheat Explained - Part 1

Bob and Tim were in the company conference room where Bob is set to give Tim some extra training at Tim’s suggestion. Bob said, “Tim, you asked for more explanation of what superheat is. This is not a very simple topic. It will take a couple of meetings to go into detail about it.”


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NEWSMakers: John Lanier

John Lanier of North American Technician Excellence (NATE) stops by the NEWS’ booth at the AHR Expo to discuss NATE’s presence at the show, what’s coming up in 2015, and much more. Posted on Feb. 20.

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2015 February 23

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Mobile devices and field management software are spreading in the HVAC industry. Are you utilizing this technology?
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2015 National Plumbing & HVAC Estimator

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