Re: A Great Innovation...But...
@Justicesays
Valid point, but not an issue really. Firstly when retrofitting it is not possible to achieve "airtightness." What you do manage to do is reduce the air exhange somewhat. With new house construction of the most energy efficient sort you replace inadvertent air exchange with a heat-and-air exchanger. This replaces the air but reduces the associated heat loss 60-80% (with better units). That said, if you have any sort of combustion appliance, be it boiler, furnace, dryer, range, heater, or whatever, you are always at some small risk and must be careful to maintain and replace these things at approriate intervals.
Biting the hand that feeds IT
