Door Gasket End Gap

[RomanW]

Hey everyone,

Was just cleaning out the stove and noticed this little gap between the ends of the gasket. This stove has been used 3 times? I haven't noticed any performance issues, I can still turn it down. But right above this gap there is what looks like spatter on the glass (Which I thought was just sap spraying on the glass).

Should I address this?

 

[DAKSY]

Yes. Get some Hi-Temp RTV & reattach the gasket to the metal.
You may have to scrape any residue from the original adhesive
off the metal before you apply new. Replace the front & let the
new adhesive cure for a couple of hours before firing.

 

[RomanW]

Yes. Get some Hi-Temp RTV & reattach the gasket to the metal.
You may have to scrape any residue from the original adhesive
off the metal before you apply new. Replace the front & let the
new adhesive cure for a couple of hours before firing.

Thanks! Just to confirm so I understand, pull the existing gasket off, remove any adhesive currently in the door channel, and reapply the existing gasket making sure the ends meet, and allow the RTV to cure for a couple of hours? I assume the gasket just needs to be stretched out a bit more?

 

[DAKSY]

I don't think you need to go that far. I would try to just get the ends resecured, but if this unit has only been fired 3X, call your hearth shop & have them repair it under warranty.

 

[RomanW]

I don't think you need to go that far. I would try to just get the ends resecured, but if this unit has only been fired 3X, call your hearth shop & have them repair it under warranty.

I would, except I got it straight from Drolet lol

 

[RomanW]

That being said though, just pop the ends up, clean the door surface, reapply gasket cement and stretch the ends to touch each other and let cure for a couple of hours?

 

[Woodcutter Tom]

I would, except I got it straight from Drolet lol

This is a common issue. The tape used to keep the gasket ends from fraying melts during your first burn. Melted tape sticks to stove body and pulls gasket ends, thus fraying them. I and others have had this happen. DROLET (SBI) sent free replacement gaskets. The replacement gasket is a different material and density that the OEM gasket. When I replaced mine I put the seem at the top of the door, and used masking tape on the ends. I figure that I want any leak to be at the top of the door so that it mixes with the air wash air. I do not want a leak at the bottom of the door bringing unwanted air into the stove. After wrapping the masking tape around the end of the gasket, I cut the masking tape from the side that would touch the stove. I did not want anything to melt against the stove body again. I used red RTV to seal the ends together.

 

[Woodcutter Tom]

That being said though, just pop the ends up, clean the door surface, reapply gasket cement and stretch the ends to touch each other and let cure for a couple of hours?

I would try this first, but use red RTV instead of gasket cement. The RTV is flexible, easier to work with and easier to clean. SBI sends a tube with a replacment gasket.

 

[DAKSY]

I always install gasket with the seam BETWEEN the door hinges.
That tends to be the tightest point of sealing when the door is closed.

 

[RomanW]

This is a common issue. The tape used to keep the gasket ends from fraying melts during your first burn. Melted tape sticks to stove body and pulls gasket ends, thus fraying them. I and others have had this happen. DROLET (SBI) sent free replacement gaskets. The replacement gasket is a different material and density that the OEM gasket. When I replaced mine I put the seem at the top of the door, and used masking tape on the ends. I figure that I want any leak to be at the top of the door so that it mixes with the air wash air. I do not want a leak at the bottom of the door bringing unwanted air into the stove. After wrapping the masking tape around the end of the gasket, I cut the masking tape from the side that would touch the stove. I did not want anything to melt against the stove body again. I used red RTV to seal the ends together.

View attachment 303105 View attachment 303106

Masking tape can deal with that heat?

 

[Woodcutter Tom]

Two pictures are attached. 1st is a sample of a replacement gasket with masking tape before I trimmed it away on the stove side. Second is my stove today at the seam. You can see the red RTV joint. If I look closely at the very edge of the gasket where it meets the door, I can see blacked masking tape. The RTV holds everything tight and in place. All is good.

 

[Supersurvey]

Is this the correct RTV? Is 3 oz enough for 1 door?

Amazon product ASIN B00ID8IUJY

 

[Woodcutter Tom]

Is this the correct RTV? Is 3 oz enough for 1 door?

Amazon product ASIN B00ID8IUJY

I believe that will work fine. SBI's red silicone is rated at 500 degrees continuous and 600 peek. JB weld is higher.
SBI's is 2.8 oz. I have done multiple door gaskets with one tube.

 

[RomanW]

This is great. Thanks everyone!

 

[Newbie78]

I would let that silicone set up overnight...

and cover it with a small piece of tinfoil for the first few fires. Or forever. I've done that with two of those gasket joints. No leaks, no mess.