Existing chimney flue versus recommended flue liners
How do I know if the draw on my existing chimney flue is good enough for a multifuel woodburning stove, so that I do not need to install a flue liner.
Let's say the smoke test has been performed and no leakages have been detected.
Let's say my existing 1930's chimney flue is 11" across.
Most of the companies selling woodburners recommend you have them install their, or a flue liner; these being roughly 5" - 7" inches in diameter, opposed to the pre existing 11" chimney flue.
They state it's a lot do with the temperature of the flue the smoke's escaping up, and a cold chimney flue will slow or stop hot air (smoke) rising.I'm kind of doubting a lot of what's said, and see it as a means to extract cash from my wallet.
Any thoughts?
How do I know if the draw on my existing chimney flue is good enough for a multifuel woodburning stove, so that I do not need to install a flue liner.
Let's say the smoke test has been performed and no leakages have been detected.
Let's say my existing 1930's chimney flue is 11" across.
Most of the companies selling woodburners recommend you have them install their, or a flue liner; these being roughly 5" - 7" inches in diameter, opposed to the pre existing 11" chimney flue.
They state it's a lot do with the temperature of the flue the smoke's escaping up, and a cold chimney flue will slow or stop hot air (smoke) rising.I'm kind of doubting a lot of what's said, and see it as a means to extract cash from my wallet.
Any thoughts?
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