I purchased a Breckwell SE and noticed the rope gasket missing on the top and bottom of the window. I read a previous post where someone was missing the rope gasket on the bottom of the window and was told it's the "airwash". My window is missing the gasket on the top *and* bottom....is it supposed to be that way? I get a huge puff of smoke that comes out of the window on start up and there is definitely a wood smoke smell in my house. I've been using pellet stoves for 17 years (this is my 3rd stove, but my first Breckwell) and I have never seen this airwash set up. Bottom line: should there be rope gasket on 4 sides? 3 sides? or just 2 sides? Thanks for your input.