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Question DetailsAsked on 10/12/2017

What is the approximate cost of a heat treatment for a fireplace chimney that had a water leak.?

There was a water leak that has been fixed. However, one or more bricks have degraded and an inspector said the chimney needs a heat treatment.

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1 Answer


You need to ask him what he means by a "heat treatment" - because that is a new one to me. May be a local colloquilism.

Normally the bricks would be repaired, then to slowly acclimate them and the new mortar to the heat, and to dry out any residual water in the chimney so it does not heat up severely and flash to steam (as a steam explosion), normally a low, gentle fire in the fireplace is suggested for about 4-8 hours or more to dry it out before it see high flue heat. This is something (with instructions on how big a fire and how long) you just do yourself.

The other possibility is he may mean your interior flue is deteriorated and you need a heat-resistant refractory lining installed - which can be (depending on existing construction) either a high-termporature concrete lining, or an inserted double-wall sstainless steel flue - which commonly run into the thousand to three range - more on that in previous questions about that subject in the Home > Chimneys linkk under Browse Projects, at lower left.

Answered 2 years ago by LCD

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