I picked up the used Horizon 16in offset. It is about 5 years old. All in all, it is in great shape, but there is a noticible gap around the firebox door. It is about 1/8in on the top and along the non hinged side of the door. There is no lip, so gap is straight into FB. Is this normal, or is it going to be a problem that I should be concerned about? If it needs to be corrected, any suggestions? Not a lot of surface area for a seal...
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