An HRV does require 2 additional ducts installed on top of what you have. It also requires maintenance.
In our area I've seen a few freeze up due to condensing moisture meeting the current type of weather we are seeing now -20
It might be worth having a thermoelec or similar pre heater installed upstream of the HRV in the intake, which will pre heat the air to prevent freezing.
Thanks so much for the reply. I'll definitely look into pricing one out. Merry Christmas Syndicated.
I am having an issue with my water heater. I have to kick the ice out of the intake on a daily basis in order to have hot water. I bought the house a little over a year ago, and the builder told me that kicking the ice out daily is "preventative maintenance". Personally I think that's a load of poop, ad I've owned other houses and have never had this issue. Would love some advice on this issue!! Thanks!!