This is one of those problems that are not dealt with seriously enough by the building officials in really cold regions. I have opened a blog space at the bottom of this article for you to add in your case history so we can demonstrate that this is a large and continuing problem. Take a look...
EN FRANÇAIS
There is an elephant in the room – QUEBEC GETS REALLY COLD. The ecological dream of an all-electric urban society is suicidal in a cold climate like Quebec.
Extended power system black-outs are a reality of life in Quebec. Every few years electrical system black-outs have forced...
I have reproduced below an article from the construction professional publication Solplan Review November 2008 because it was such a good article on this complicated subject. In 2023, Solplan Review is no longer in publication. For an animation on what is a rainscreen, follow this link.
But...
Gregory in Québec asked:
I recently replaced my oil furnace with a heat pump/electric furnace system. I live in the region of Montreal. The heat pump can heat/operate in temperatures as low as -30c. The oil furnace had an air intake duck supplying the furnace with outside (cold) air. I underst...