I've been considering adding an energy recovering ventilator to my old house; since we spent so much time and effort leakproofing it, the air is now often stale, and the fireplace won't draw.
I did a search, and there are many companies making them, but of course they all claim to be the best, and I don't know enough about them to evaluate them, much less to decipher which ones will last longer and be easier to maintain.
Please post any advice on the benefits/detriments of these, what I should look out for, and which manufacturers offer the best reasonably priced units.
Our house is about 900 square feet per floor, with heating/AC ventilation to the basement, first floor, second floor, and (marginally) attic.