AL29C vent connection failures

hot_rod

seeing problems with the gasketed fittings? This was installed in 1999 on a Lochinvar boiler. The gasket rings crumble like plaster. I chose to replace the entire vent with the good old messy RTV silicone fittings.

Here I thought we were "out of the woods" after the original speced high temperature plastic vent materials disappered from the scene. Guess not!

hot rod

Bob Bona_4

the

ones I've been using have a orangish color seal. Seem pretty pliable so far..could it be that the mfr's have changed seal composition?

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joel_14

hotrod

Did you do a combustion test ? how hot was that flue??? Maybe overfired and cooked the gaskets?

[Deleted User]

Let us know...

what the manufacturer says. I've not had occasion to pull any apart, but am sure it will happen eventually.

ME