1) I am investigating the possibility of installing an aftermarket blower in my Heatilator ND 4236 gas fire place. I found this one:
Anyone have any other recommendations (good, bad, stay away or otherwise?)
2) While I was down at the bottom of my fireplace, I noticed a REALLY cold draft. I could actually see the dust wavering in the breeze. Turns out the hole where the gas comes in has a pretty good breeze to it. Along with that, there is a rectangle shaped hole (with some screw holes around it) that is open, with no apparent use. I looked in the installation manual, and the drawings don't seem to indicate the existence of this hole or a cover plate.
Can I close these off with some metallic tape? Or is there some other substance I should be using to close these off, or should I keep them open?