Product review (5 stars): No more cold air in the house!
I got this vent closer to use for our Jenn-Air gas cooktop. We had a problem in the winter months when cold air backed-up through the vent and into the house. No more! The installation was reasonably simple against our outside stucco walls with the supplied screws and some caulk. Now, no drafts...no cold air. I'm one happy camper.