Monday, June 16, 2008

Blower Door

What do raters do with a "Blower Door"? 
This is a diagnostic tool developed for raters to determine the total leakage of your home's envelope. (By envelope we mean the space you try to heat and cool or the conditioned space.) We want to know how much energy is lost through leaks from your conditioned space to the outside. The blower door is a fan that is precisely controlled to depressurise your home. This allows a rater to measure how leaky your home is and, by using visible smoke, find where the leaks are.

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