Looks like I'm in the same boat as some other Harman owners. I've got the dreaded woofing sound when my stove is burning at a medium to high flame, it sort of vibrates and sounds like a train or a helicopter outside the house. And in addition to that, my auger motor is loud, I read someone else describing the noise as a cheap rotisserie oven motor, and that's exactly what it sounds like. It wouldn't be so bad if it were a constant noise like the distribution fan blower, but the fact that it only feeds once every 5-10 seconds makes it very noticeable. Very disappointing on a new $3800 stove. My old 2004 Quadrafire Santa Fe was dead silent. Yeah, it was a pain in the rear to have to clean out the burnpot every single day, but it sure was nice to have a stove that was quiet. I'm afraid I've spent a pile of money to get a stove that I don't have to clean as often, yet is driving me crazy with the noises it makes. So, all you Harman experts: 1. Is there a way to quiet down the auger motor? I see a guy on ebay that sells replacement motors made by a different company for about $130. I don't care about the money, I'd gladly pay $130 for a new auger motor if it were as quiet as my old Quadrafire stove. Would my dealer replace my motor on my brand new stove simply because it's "too loud"? 2. For the stove rumbling, subwoofer sound, what I've done so far is put a piece of foil tape over part of the air intake port. That has calmed down the sound, but it also makes for a lazier flame. Take the tape off and the flame goes crazy, but the rumbling comes back. Arrrrrgh. All gaskets seem okay - door gasket, ashpan gasket, pellet bin gasket. I'm running on inside air, not the outside air kit if that makes any difference. Help! Any advice is appreciated.