Paul Raymer

Paul Raymer is chief investigator of Heyoka Solutions, a company he cofounded in 2006. He has been wandering through the mysteries of building science since 1977. He has multiple BPI certifications and is a HERS Rater.

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Digital Manometers

Author: Paul Raymer
premium CONTENT
January 04, 2011

One of the most frequently asked questions that I get when I teach building science courses is, “What equipment should I buy to get started in this business?” There is no question that ... [continue reading]

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Combustible-Gas Leak Detectors

Author: Paul Raymer
premium CONTENT
May 01, 2011

You may have heard of houses and neighborhoods exploding due to gas leaks in old pipes under the streets. Inside the home, detecting combustible-gas leaks is an important part of combustion safety testing. Gas connections ... [continue reading]

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Measuring Mechanical Ventilation Airflow

Author: Paul Raymer
premium CONTENT
January 03, 2012

As the house gets tighter, the effectiveness of the ventilation system becomes increasingly critical. [continue reading]

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Analyzing Combustion Analyzers

Author: Paul Raymer
free CONTENT
February 29, 2012

Just talking about CO can be confusing. Although the terms used in this article are defined in the sidebar (see “Terminology”), CO can be deadly, and so I want to emphasize the basic ... [continue reading]

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Blowing Smoke

Author: Paul Raymer
premium CONTENT
April 30, 2012

Long ago, when I started in this business, I wished for a pair of glasses that I could put on to see how the air was moving. (Now I wear glasses all the time just ... [continue reading]

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Testing Duct Testers

Author: Paul Raymer
premium CONTENT
June 29, 2012

According to DOE’s Building America program data, typical residential ductwork efficiency is about 67%. That means that if you install a 90% efficient furnace, your system efficiency would be just over 60%. Another way to look ... [continue reading]

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Calibrating Measurement Tools

Author: Paul Raymer
premium CONTENT
April 28, 2013

To quote the wise Yogi Berra, “You’ve got to be very careful if you don’t know where you are going, because you might not get there.” In terms of ... [continue reading]

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Borescopes: Eye Spy

Author: Paul Raymer
premium CONTENT
June 30, 2013

Remember ET’s finger? That could be seen as an advanced version of a borescope—ET could touch things and cure them. The borescopes I am describing here are cameras with illumination on ... [continue reading]

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