John Proctor

John Proctor, P.E. is the CEO of Proctor Engineering Group, San Rafael, California.

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Thinking Ahead to a Humid Summer

Author: John Proctor
free CONTENT
March 01, 2005

Q. I recently read that a variable speed, two stage air conditioner can maintain 50% relative humidity (RH) even when the latent load is 60% of the total load.Would this really work?      &... [continue reading]

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Duct Leakage: How Much

Author: John Proctor
free CONTENT
January 01, 2001

Q:Is there a standard for energy-efficient ducts? I was called to a home built in 1955 that is under a warranty from a recent sale. The customer wanted us to “fix the ducts.” ... [continue reading]

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Crawlspace Condensation

Author: John Proctor
free CONTENT
March 01, 2001

            Crawlspace Condensation Q:I was called to a doublewide mobile home to investigate a problem with a 4- year-old duct system (the original duct system was ... [continue reading]

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Smart and Cool - The Art of Air Conditioning

Author: John Proctor
free CONTENT
January 01, 2005

Common misconceptions can contribute to a home environment that is too cold, too hot, or too humid. [continue reading]

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Sizing Air Conditioners

premium CONTENT
January 07, 2010

A mountain of data leads to an unusual conclusion - sometimes bigger is not so bad. [continue reading]

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WHAT'S WRONG WITH REFRIGERATOR ENERGY RATINGS?

Author: John Proctor
archive CONTENT
January 01, 1993

As refrigerators become more and more efficient, consumers and utility demand-side managers are faced with a number of questions. [continue reading]

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Leak Detectors: Experts Explain the Techniques

Author: Various Authors
archive CONTENT
September 01, 1993

This article is an effort to bring together the ideas of several innovators who have invented methods of diagnosing duct leakage. [continue reading]

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Savings and Showers: It's All in the Head

archive CONTENT
July 01, 1994

How much energy do low-flow showerheads actually save? To answer this question, Proctor Engineering Group (PEG) and Pacific Gas and Electric Company (PG&E) metered 243 showerheads as part of a larger evaluation of PG&E's low-flow showerhead rebate program. [continue reading]

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