Air and vapour barriers
Airtight construction of homes is essential: "your house sucks." "Oh yeah? your house blows!"
...air. Houses that are fairly air tight and that have negative air pressure may cause flue gases to backdraft into your house, which can be of major concern.
Poorly balanced HRVs:
Heat recovery ventilators (HRV's) need to be professionally balanced in order to keep an even air pressure. Odds are if you haven't had it bal...
