SFL Flues & Chimneys
Pottington Business Park
EX31 1LZ

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+44 (0)1271 326633


TUBEX PLUS® Insulated Flexible Flue Liner – Claycutter’s Arms

The Claycutter`s Arms, Chudleigh Knighton, Devon, a 16th Century, Grade 2 Listed Building with a thatched roof required a new flue system to serve two fireplaces after it was discovered the existing pumice chimney liners were compromised and a warning notice had been issued deeming the appliances unsafe to use. After careful consideration, TUBEX PLUS® twin wall insulated flexible flue liner systems were installed by Ben and the excellent team at Comfort Heating & Stoves.

Installation Partner

"The thermal properties of TUBEX PLUS® make it an ideal choice for thatched properties plus its miles quicker to install than traditional insulated systems. Along with neat components like the thatch terminal, it’s a great alternative to a rigid twin wall system where DTC can be 200mm, a great product for this market. Our team enjoyed installing the system, it’s now our number one choice for any thatched building."

Ben Ayres, Comfort & Heating & Stoves


The Claycutters Arms is a grade ll* Listed Building with thatched roof, thought to have been built as a Devon Longhouse, and dating from the mid-1600s. The pub-restaurant is so-called as it is in the “Bovey Basin’, which has been a ball clay mining and exporting area for many years. This charming village pub has the full support of a large team including Olive the pub dog. With seating for 56 people indoors and 300 externally, there are plenty of places to enjoy some honest pub grub and some popular local beverages.


Having had their annual chimney sweep attend site it was found that the existing pumice chimney liners were compromised and a warning notice was issued deeming the appliances unsafe to use. Ben Ayres from Comfort Heating & Stoves a specialist fireplace and flue contractor from Exmouth was asked to assess the issues. Having completed a full camera survey Ben determined the best course of action would be to install the TUBEX PLUS® insulated flexible liner from SFL.

The classy Charnwood C5 Blue wood burner was carefully removed along with the stainless sump adaptor. Once the nose cone was attached the TUBEX PLUS® insulated flex was speedily pulled up through the stack, cut and finished with the TUBEX Thatch specific terminal. A custom made register plate was crafted on-site to allow the connector to the single wall to protrude through. Once the Charnwood C5 was repositioned and levelled the connecting pipe from the appliance was refitted with new fibre ropes, fixed and tested for soundness


Installed within a few hours, the final thing was a good clean up and a thorough test with the appliance on. Needless to say, Olive, the dog was first on the scene to approve the now compliant installation.

Comfort Heating & Stoves has been trading for over 13 years and has 1000’s of installations to their name. Being HETAS certified and part of the Guild Of Master Sweeps they have a thorough understanding of the importance of safe and compliant wood burning & gas appliances. Using only the best materials and top quality stove brands Ben has long praised SFL’s TUBEX PLUS® as the best solution for lining Thatched properties, large voids and old stone properties with damp walls.



Metres High


mm dia system


SFL Solution


Flexible Liner


TUBEX PLUS® is a unique insulated flexible liner for multifuel applications. Achieving optimal appliance performance with its 13mm high density insulation layer. Light weight and very flexible now the preferred way to insulate large voids, cold chimneys and can overcome start up issues. Due to being pre insulated is considerably quicker and easier to install than traditional methods of back filling or insulation jackets.

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