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Our 4" Twinwall Flue Range...

Four inch insulated twinwall, perfect for when want to place a stove, fire or cooker into a room without an existing chimney. Our selection of 4" insulated twinwall is designed for use with gas or oil appliances. If you have a wood or multifuel stove with a 4" (100mm) outlet on it then you should look to increase it to either a 5" or 6" diameter. Made from high grades of stainless steel we have a wide selection of different lengths, bends, tees, adapters and supports all available in a 4" diameter.  If you need assistance in planning or designing your twinwall system please contact us and we will happily help.

Perfect for homes without a chimney (an increasingly common occurrence). Insulated twinwall is essentially a prefabricated chimney consisting of a pipe within a pipe and insulation between them. You can connect into the twinwall flue pipe using single wall stove pipe from the appliance, or twinwall straight out of the appliance and run either through the wall or straight up through the roof, in which case you will require roof flashing to seal the opening.

We have a selection of different systems available to suit different requirements, and a multitude of different lengths, bends, tees, adapters and supports. If the selection in this category is too broad for your needs, try using our filters to narrow your search criteria at the side of this page, so you can find the fireplace product that’s right for you. 

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Read what other customers think about our and services.

"Very pleased with your personable service there at Fireplace Products"

"We were extremely pleased with the prompt way the order was dealt with, the polite friendly manner over the telephone and the speed of delivery."

"When I rung up to order the stove, I was also given lots of help and advice and everything was very efficient."

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