If you are installing a heating appliance, such as a wood-burning stove, gas coal effect fire or oil boiler, you will more than likely need an insulated flue system, you certainly will if you do not have a brick chimney stack. Twin wall systems can be built to produce a safe chimney system for your appliance. The external diameter of double-walled flues is 60 mm more than the inside diameter. So a 150 mm pipe has an outer diameter of 210 mm.
Insulated flue systems are suitable for creating both indoor and outdoor flues, and they can be used for biomass boiler installations.
Twin wall flues for a wood-burning stove is a simple, cost-effective solution if you don't have a brick chimney stack, making them ideal for new-build projects and renovations. Our twin walled flue products have a simple twist-lock bayonet jointing system and include pipes with an adjustable length. They are available in both a high-grade stainless steel finish or as black twin wall flue pipe in all sizes and are HETAS approved.
A flue system's quality, manufacture, and finish can vary a great deal. Nationwide Chimney Components only supply premium, high-quality twin wall flue systems and twin wall flue pipe. Depending on your required flue route, they can pass through floors, roofs, or walls.
We stock the Schiedel flue system and are one of the UK's leading providers of flue supplies and flue liner. If you're looking for a twin wall insulated flue system. Remember always to contact a HETAS approved tradesman to ensure your flue system is fitted correctly and meets building regulations.
Frequently Asked Questions
What is a twin wall flue?
A twin wall flue is a double-layered insulated stainless steel metal flue pipe that transports gases from wood-burning or multi-fuel stoves into the atmosphere. The system we offer features a simple push-fit design for ease of installation.
Do you need planning permission for a twin wall flue?
Under normal circumstances, fitting a twin wall flue, altering and replacing an external flue, chimney or soil and vent pipe will be considered permitted development. Therefore, planning permission will not be required in the majority of cases. However, there are many issues to consider with a stove installation, so it's always worth checking.
Does a twin wall flue get hot on the outside?
Twin wall flue pipe will heat up when used as they carry the hot gases away from the fire. The outer flue can be over 90c. The temperature of the twin wall flue can also vary depending on:
- Power of the stove.
- What fuel is used.
- Length of the insulated flue system.
- Outside Temperature.
