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COVID-19 Message for Consumers & Propane Providers   Learn More »

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PERC commissioned this study to investigate the impacts of vent-free gas products on indoor air quality (IAQ) in residential energy conservation structures, specifically energy-efficient homes. Such homes are usually characterized by low air exchange rates with outdoor air and high insulation values. The work in this current study applies to “low-rise” residential structures, primarily detached single-family homes.

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