The Search for Thermal Comfort

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The Search for Thermal Comfort

In the beginning there was woman and man, naked; I assume. The body’s core temperature is stable at about 98 °F. In an outdoor environment with a temperature between 65 to 102 °F, a ...

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Calibrating Measurement Tools

Author: Paul Raymer
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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]


HVAC Contractors: Survive and Prosper in Hard Times

Author: Colin Genge
April 01, 2013

The International Energy Conservation Codes (IECC 2009 and 2012) require HVAC ducts to be tested to prove a minimum leakage of a rather easily obtained 12 CFM/100 square feet of conditioned floor area. While many states and localities ... [continue reading]


Air Sealing and the CAZ

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February 25, 2013

After I described how air can get sucked down the chimney and vent connector and flue, and out the draft diverter of the gas water heater, and into the basement, the mother, who was now ... [continue reading]


Virtual Combustion Testing

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February 25, 2013

As any BPI Building Analyst will tell you, it’s hard to become adept at combustion testing. It takes lots of practice, in real houses, with real mechanical equipment. No amount of classroom training ... [continue reading]


Static-Pressure Probes: Measuring Combustion Draft

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January 02, 2013

Looking for a draft in a flue by measuring just the pressure in the flue—with reference to the combustion appliance zone, or CAZ—is a bit like discussing the speed of a ... [continue reading]


Forward Motion: Career Path Options with the New Home Energy Professional Certifications

Author: Larry Zarker
August 28, 2012

The green building community is sold on the value of certifications. For the worker, professional credentials demonstrate a degree of knowledge and skill. They help employers screen applicants and help energy efficiency program administrators set ... [continue reading]


Jim Gunshinan for Leo Ranier, LBNL

More "Buzz" from ACEEE Summer Study—The Invisible Energy Mortgages in New Homes

You probably never considered the power consumption of those Ground-Fault Circuit Interrupter outlets (fondly known as GFCIs) in bathrooms, kitchens, ...

Two National Brands Join Forces Demonstrating Unity in Home Energy-Efficiency Rating Systems

Lindsay Bachman

Two National Brands Join Forces Demonstrating Unity in Home Energy-Efficiency Rating Systems

The Residential Energy Services Network (RESNET) and Pearl Certification are now collaborating to ensure that the Home Energy Rating System (...

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