I have been burning off and on in my Regency 2400 insert (3rd season) for about a couple weeks now with no issues. It was going to get into the upper 30s overnight here in Western NY, so I loaded her up and went to bed. I woke up in the middle of the night to this disgusting smoke odor in the house. I went out and checked the insert and saw no visible smoke coming from it. Over my last couple weeks of burning, I have noticed that the left side of the glass gets really dirty, really fast, which was also the case this morning. I just attributed it to me trying to burn at a lower temperature due to ”shoulder season”. I had the thought this morning, I may need to get a new window gasket? I was wondering if others have any suggestions or am I on the right track? Thanks
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![IMG_5098.jpeg IMG_5098.jpeg](https://www.hearth.com/talk/data/attachments/317/317246-78b8c49544d4e0bd0f5d8942937a0e91.jpg)