904 Flexible flu liner


Please Note: Allow up to 5 working days for delivery. If you have any questions, feel free to give us a call.

A double skinned flexible flue liner suitable for relining within a masonry chimney. Flue liner is suitable for use with burning gas, oil, coal, coke, cured dry logs, cured dry peat and approved smokeless fuels.

The flue liner has a smooth inner liner made from 904L grade stainless steel and is 0.105mm thick. The flue liner has a convoluted outer skin made from 904L stainless steel and is 0.105mm thick. The Flue Liner is constructed from a single strip of steel which is bent at 180 degrees and then the seam is folded in four planes to give a quattrolock seal.

Flue Liner is approved and listed by HETAS it is also CE approved

1.Make sure the liner will go down the chimney (this can be done by pulling down a small section of the diameter liner you will be using)
2.Sweep your chimney.
3.Check you pot is in good condition, if you are NOT using a suspended cowl then remove the pot from the stack.
Flue Liner should always be fitted from the top.
Make sure the arrows are pointing upwards (gas flow).
Secure a piece of string (at least the same length as the Flue Liner to the Nose Cone (order separately).
Now attach the Nose Cone onto the end of the Flue Liner, again making sure the arrows on the Flue Liner are pointing away from the Nose Cone in a upward direction so when the liner is installed the arrows will be pointing to the top of the chimney
Pull the liner down the chimney using the string and at the same time have someone at the top of the chimney feeding the Flue Liner down, once the Flue Liner is fitted remove the Nose Cone.
It is recommended that chimneys serving solid fuel appliances be swept and maintained as frequently as necessary but at least once a year.

Item 904L Mi-FLEX 125mm x 10m CUT LENGTH 125mm (5 inch)
Designation: BS EN 1856-2 T600 N1 W Vm L70011 G
Designation: BS EN 1856-2 T200 P2 W Vm L70011 O
Inner Material: 904L – 0.105mm thick
Outer Material: 904L – 0.105mm thick
Fuels: Smokeless
Approvals: HETAS
Manufacturer: Mi-Flues Ltd
Manufacture: Single Strip
Seam: Omega-Lock
Warranty: Lifetime


There are no reviews yet.

Be the first to review “904 Flexible flu liner”

Your email address will not be published. Required fields are marked *