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While changing the boiler flue pipe I found that previous installer(boiler) had totally destroyed the clay liner where the boiler flue meets it. I assume that this was done while changing the position of the boiler and the previous home owner did not want to pay for the liner repair. I believe the rest of the liner is being held up by one remaining face of the square liner and maybe some mortar stuck in the expansion space between the flue and concrete blocks.
The previous owner had lived with this at least 20 years and we did for about 2 years. Now I have a CO detector in the bedroom.
Is there some easy way to repair this liner from the bottom or should I just trash it and go to direct vent boiler? I have to change the boiler in a few years. Thank you.
Also, I want to install a chimney cap. Does this in any way affect the draw. Now I have a great draw, but I am worried that the cap may change this.
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Replies
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So what is it about this post that it gets no response?
Rich Beckman
*No body knows the answer.
*Kwan, I cannot recall the name of the outfit, but there is a nationwide company that relines flues. They put an inflatable tube down the chimney, set up a form at the bottom and pour some sort of a refractory cement around the tube. When the tube is deflated and removed, presto a new flue lining.There was an article in JLC several years ago. The name is form-a flue or something like that. Scott
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kwan:
The chimney can be relined.You could replace the
clay liner with a single wall stainless steel liner.
A chimney cleaning company should be able to do it,
or point you in the right direction.In order to do it
you have to remove the clay liner which means smashing it to bits working from the TOP DOWN, I've
seen this done with a heavy drill and a threaded rod with a rectangular weight welded on the bottom.Put that down the chimney and paddle away. The liner
comes in 4 ft. lengths you put as much togather as you can handle if its a long chimney you will have to fasten the sections togather at the top of the chimney while holding the bottom section the more help the better.the bottom liner has a hole you have
to measure to fit it the peice that fits through the crock has a band that fits around the liner you have
to put itin first and slidethe liner through.Pour
vermiculite in around the outside of the liner cap it off and you're done.Does that make sense?
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While changing the boiler flue pipe I found that previous installer(boiler) had totally destroyed the clay liner where the boiler flue meets it. I assume that this was done while changing the position of the boiler and the previous home owner did not want to pay for the liner repair. I believe the rest of the liner is being held up by one remaining face of the square liner and maybe some mortar stuck in the expansion space between the flue and concrete blocks.
The previous owner had lived with this at least 20 years and we did for about 2 years. Now I have a CO detector in the bedroom.
Is there some easy way to repair this liner from the bottom or should I just trash it and go to direct vent boiler? I have to change the boiler in a few years. Thank you.
Also, I want to install a chimney cap. Does this in any way affect the draw. Now I have a great draw, but I am worried that the cap may change this.