Isokern 150mm i/d 15° Bend
Isokern
The Isokern 150mm internal diameter 15° bend allows gentle offsets in the chimney to move the flue over a small distance
This pumice liner bend is suitable for stoves and fires with flue diameter requirement up to 150mm. Installers will find it requires minimum 15mm insulation installed around it by builder using brickwork or blockwork to comply with manufacturer requirements. It offers reliable integration in trade applications with pumice material for high insulation lightweight handling and long life.
- Internal diameter: 150mm
- Bend angle: 15° for gentle offsets
- Material: Pumice construction
- Insulation: Requires minimum 15mm installed around it by builder using brick .....Read more

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Isokern 150mm i/d 15° Bend
Product Q&A's
Please feel free to ask any related questions, and we strive to give you the most accurate answer.
1 question
Maybe a silly question - My builder says we have to have a bend in the chimney to make it draw, but this would not work with the planed route above as we need it straight- do you have to have bends in a chimney?
No its not a silly question as we are asked this alot (we are told this by many builders!) - A Chimney / flue system generally performs better the straighter it is vertically, this keeps the friction of the gasses to the flue liner to a minimum and therefore keeps performace maximised, this is due to less resisitance compared to a bend in the flue which also then increases turbulance. So in short the straighter the flue the better the performance. Traditionally you would install a set of bends on the flue to move the flue route over for the bedroom fire above, which they would try to centralise.


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