Good on ya, Ken... I wonder how common this dealer, uh, flakyness is...
Here's a few things I've learned, painfully, on this stove:
1) You may still get some smoke input from your input pipe, even after removing the end cap from your exhaust, if they are that close. We did, here, and ended up running an exhaust up the house to get them very separated. Another alternative would be to extend the intake pipe and run it off to the side, if that works better for your situation. We didn't go that route, so I don't have any actual experience on this; it just seems like a decent alternative...
2) Maybe check the glass and glass restraints in the door for tightness. And to make sure none of the glass is broken. One of ours was, as you may have seen in another thread here. I replaced the glass and also had to replace one of the restraint studs, as it was stripped from the factory and not holding anything. This was yesterday (Sat Feb 23) so still watching that, but it seems better.
3) Burn the best quality pellets you can get your hands on. Pellets marked as Premium work better. The dealer here gives a 'free' ton of cheap pellets with each new stove, and they junk up the burn box very quickly. Heat'rs pellets are much better, and we have a locally produced brand that is the best I've seen that keeps things cleaner. The premium pellets do cost more, but to me are worth it.
And have you found the online guide to complete cleaning of this stove? That has good advice. It is here if you haven't found it yet:
http://www.homewarmth.com/advancecleaning.html
Good luck!
ETA: My apologies for getting so far off-topic from the original point of this thread... :red: To the OP: Based purely on my personal experience, I cannot in good conscience recommend the Harmon. I may very well have a rare 'bad' one, and the new Quads may be no better, but my old Quad was a much higher quality stove, in my opinion, than the new Harmon.