John J Doyle Ltd are stockists of F600 and Ultraflex multi-fuel flexible flue liner.
F600 Flexible Liner by John J Doyle Ltd is our own range of multiflue flexible liner.
F600 is available in 5″ or 6″ and 316 or 904.
F600 comes with a lifetime guarantee.
Ultraflex flexible liner is stainless steel twin-lined grade 1 quality and produced to the highest of standards.
The liners are designed to withstand high temperatures and has a good resistance to corrosion.
Available in 7″ or 8″
316 Ultraflex
- Made of 316 grade Stainless steel inner and 316 outer (Triple lock).
- Suitable for burning the following fuels: dried seasoned wood, gas, oil.
- This liner also has a 20 year product replacement (conditions apply).
- Normal operating temperature of upto 450°C for solid fuel and 250°C for Oil and Gas.
- HETAS approved product
- Manufactured in the UK
- Corrosion and crush resistant
904 Ultraflex
- Made of 904 grade Stainless steel inner and 904 outer (Triple lock).
- Suitable for burning the following fuels: Seasoned Dried Wood, Gas, Oil, Coke, Peat and Smokeless fuels.
- This liner also has a 35 year product replacement (conditions apply).
- Normal operating temperature of upto 450°C for solid fuel and 250°C for Oil and Gas.
- HETAS approved product
- Manufactured in the UK
- Corrosion and crush resistant