I'm intending to fit a flexible chimney liner and stove. I've read many articicles but one thing puzzles me. All the articles say or infer that the brick chimney is sealed - sealed at top by closing plate and bottom by registry plate. But what happens if say the joint between the flue pipe and liner is faulty and carbon monoxide leaks into the chimney? The gases would accumulate in the chimney and probably seep through the brickwork. Surely an opening at the chimney stack to release gases would be advisable.
ANY JOINTS, if YOU don't put any joints between the register plate and the closing plate then there wont be any joints. You're installing it, if the stove flue is 1 meter long put the register plate at 1100mm, if it's 500mm long put the register plate at 600mm = no inaccessible joints. It really is as simple as it sounds.
Look at the project section, there's a piece about installing a flexible flue liner.
'Just because a joint is accessible doesn't mean it won't leak'
ok but it's been done for donkey's years.
If you're worried about joints leaking scrap the stove idea and go for a room sealed boiler - Sorted.
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