i bought a avalon astoria bay insert and had it installed. my problem with it is vibrations, this thing rattles all the time, the door seal at the top when you put a dollar in it it comes out with no resistance tight everywhere else tried tightening the latch with no success any tighter and something might break. the dealer says that this is normal. have been trying different pellets as the heat is just ok with cubex and a lot of days it just doesnt want to put any heat out if i close the damper a little i get ash buildup . what am i doing wrong or do i have a problem with the stove