Spotlight Article:
Air Sealing and the CAZ
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 ...
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Mechanical Ventilation for the Home
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All houses and apartments need an efficient way to exhaust stale, moist indoor air and introduce outdoor air. [continue reading]
Air Sealing in Occupied Homes
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There are few areas of residential construction that are so commonly misunderstood as air movement within and through houses. [continue reading]
Carbon Monoxide from Ovens: A Serious IAQ Problem
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Traditionally, few people have considered gas ovens to be a major source of carbon monoxide (CO), even though all their exhaust products are often vented directly into the indoor air of a residence. Yet unvented space heaters with a similar output of combustion gases have been banned in many states because of indoor air quality (IAQ) dangers inherent in their use. [continue reading]
Combustion Safety Checks: How Not to Kill Your Clients
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Heating contractors, inspectors, and energy auditors all have different approaches to inspecting combustion appliances. Combustion problems come in various sizes and shapes, and individual tests may not by themselves prove if the house is actually safe. [continue reading]
Fireplaces: Studies in Contrasts
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Conventional fireplaces are incompatible with new, tighter housing, or with weatherized homes because of their large air requirements and the incomplete combustion products they produce. [continue reading]
Rethinking Radon Standards
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The US Environmental Protection Agency (EPA) is developing a model radon control standard for residential construction, with adoption of the standard expected sometime this winter. [continue reading]
Affordable Cooling with Window Air Conditioners
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While families in southern climates use a considerable amount of energy during the cooling season, conservation programs aimed at reducing air conditioning electricity consumption usually only target homes with central air conditioning, reflecting a general belief that homes with window units can't produce significant savings. [continue reading]
Building Tightness Guidelines: When Is a House Too Tight?
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After more than a decade of training and field experience, low-income weatherization crews are substantially increasing the air tightness of homes. [continue reading]
Scott Donnelly
GreenExpo365 Host
Keeping a home cool in the summer yet warm in the winter is a tough request. The choice of quantity ...
Doug Garrett
Code Conflict Between 2012 IRC and 2012 IECC
It has come to my attention that there may be a building science-based conflict in the language of the 2012 International ...
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