Information and Advice

Installing A Stove Without A Chimney

If you're one of the many home owners without a masonry built chimney then do not fear, it is still possible to fit a wood burner or a multi fuel stove, just a little more complicated and costly. The good news is you may well have more options on where to site the stove.

Twinwall flue systems are interlocking, insulated metal pipes that can pass very close to combustible material, as near as 50mm. This allows you to construct a chimney that can pass between joists and roof rafters or if run externally, a chimney that will be warm and insulated enough to work in such conditions. Various brackets, ceiling plates, terminals and adaptors are available to suit each system. Depending on where the stove is sited the flue can be run internally or externally. If the situation allows then an internal installation is always preferable for a couple of reasons. One, an internal flue is a warmer flue, a warmer flue is a better flue with superior up draught. Two, to run an external flue means you must have two bends quite close to the stove, one to pass through the wall and one to straighten up on the outside. The creates restriction which slows the flue draught. Does this mean external flues won't work? No, but internal is preferable. Most twinwall flue systems are a stainless steal construction and finish but they can be powder coated in any colour you desire at an additional cost.

A twinwall flue system will generally cost more than the stove itself, they do however last for many years if used correctly. Due to the cost involved we recommend you get your HETAS approved installer to survey the job to either supply or provide you with a list of components required.

Article written by Ryan Brocklehurst

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