Since there don't seem to be any threads on this to date, here's one from my gasket change-out today. Took advantage of the balmy 60+ weather and shut the stove down so I could do both the door & ash pan gaskets. I was ready to buy many feet of 3/8" rope gasket, but thanks to my helpful stove shop, I learned that the ash pan gasket is actually of the "tadpole" variety (see below), with a round edge and a "flange" which also has an adhesive side.
![[Hearth.com] Replaced XXV ash pan gasket [Hearth.com] Replaced XXV ash pan gasket](https://www.hearth.com/talk/data/attachments/145/145612-be765f9c4e0e664c02ac493365aa9318.jpg?hash=VCM4VFitye)
The tadpole gasket adheres to a light-gauge bracket which then bolts on to the inside of the stove. After some head-scratching, I figured out that I would have to remove the piece of steel that catches on the backside of the gasket bracket, which is held to the ash pan door assembly via two 7/16" bolts (actually must be metric b/c 7/16" was a little loosey goosey). **Note that those bolts also hold the cast iron ash lip onto the front, so watch your fingers, toes and tile!**
In the pic below you can see the 7/16" bolt lower center. The top little silver bolts is 1 of 6 holding the gasket bracket in place. The other one you see actually holds the hinge on, and the one next to holds the gasket bracket.
![[Hearth.com] Replaced XXV ash pan gasket [Hearth.com] Replaced XXV ash pan gasket](https://www.hearth.com/talk/data/attachments/145/145613-5765e335f63bcff86cafea8176b49999.jpg?hash=8QDb-pbhyu)
The old gasket came off easy, and it appeared that silicone had been used in addition to the self-adhesive stuff. Got that all off (scraper, wire brush), and decided to put a fine bead of gasket cement along the inside bend of the bracket just in case...like I said, there is no thread on this yet to tell me it wasn't necessary! I suspect it's not necessary since the tadpole is basically clamped in place, but I figure it can't hurt...until I have to replace it again!
I didn't take a pic of the gasket & channel while uninstalled - I was too busy cursing and scraping and getting covered in black stuff - but basically the self-adhesive side lays right down on the wide channel flange, and the round part of the gasket forms a "bead" lining the outer part of the channel. Found out the hard way that I ought to have poked holes in the new gasket where the screw holes were BEFORE I tried to reinstall.
Got that all back on, then did the door gasket. What a PIA! Old cement was really in there and had to scrape with every tool in the box before it was satisfactory. All done though - another 30 minutes dry time and I can fire up again. Phew!
![[Hearth.com] Replaced XXV ash pan gasket [Hearth.com] Replaced XXV ash pan gasket](https://www.hearth.com/talk/data/attachments/145/145614-57affe8d26108b02abfa4c353fea901c.jpg?hash=kgRfMwo7nd)
![[Hearth.com] Replaced XXV ash pan gasket [Hearth.com] Replaced XXV ash pan gasket](https://www.hearth.com/talk/data/attachments/145/145612-be765f9c4e0e664c02ac493365aa9318.jpg?hash=VCM4VFitye)
The tadpole gasket adheres to a light-gauge bracket which then bolts on to the inside of the stove. After some head-scratching, I figured out that I would have to remove the piece of steel that catches on the backside of the gasket bracket, which is held to the ash pan door assembly via two 7/16" bolts (actually must be metric b/c 7/16" was a little loosey goosey). **Note that those bolts also hold the cast iron ash lip onto the front, so watch your fingers, toes and tile!**
In the pic below you can see the 7/16" bolt lower center. The top little silver bolts is 1 of 6 holding the gasket bracket in place. The other one you see actually holds the hinge on, and the one next to holds the gasket bracket.
![[Hearth.com] Replaced XXV ash pan gasket [Hearth.com] Replaced XXV ash pan gasket](https://www.hearth.com/talk/data/attachments/145/145613-5765e335f63bcff86cafea8176b49999.jpg?hash=8QDb-pbhyu)
The old gasket came off easy, and it appeared that silicone had been used in addition to the self-adhesive stuff. Got that all off (scraper, wire brush), and decided to put a fine bead of gasket cement along the inside bend of the bracket just in case...like I said, there is no thread on this yet to tell me it wasn't necessary! I suspect it's not necessary since the tadpole is basically clamped in place, but I figure it can't hurt...until I have to replace it again!

I didn't take a pic of the gasket & channel while uninstalled - I was too busy cursing and scraping and getting covered in black stuff - but basically the self-adhesive side lays right down on the wide channel flange, and the round part of the gasket forms a "bead" lining the outer part of the channel. Found out the hard way that I ought to have poked holes in the new gasket where the screw holes were BEFORE I tried to reinstall.
Got that all back on, then did the door gasket. What a PIA! Old cement was really in there and had to scrape with every tool in the box before it was satisfactory. All done though - another 30 minutes dry time and I can fire up again. Phew!

![[Hearth.com] Replaced XXV ash pan gasket [Hearth.com] Replaced XXV ash pan gasket](https://www.hearth.com/talk/data/attachments/145/145614-57affe8d26108b02abfa4c353fea901c.jpg?hash=kgRfMwo7nd)
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