Flue liner stainless steel grades
All our flue liners are HETAS listed and suitable for use with wood, house coal, gas , oil, pellet and biomass.
If you intend to use your new stove a lot and/or burn smokeless fuel - you are best to choose 904L grade liner.
| Steel Grade | Information | Processed coal (smokeless fuel) | Slumbering /Lower temperature |
|---|---|---|---|
| 316L | This is the lowest grade stainless steel flue liner in our fluekits. Both layers are 316L grade. | No | No |
| 904L | This is the best grade stainless steel flue liner in our fluekits. Both layers are 904L grade - more resistant to the corrosive substances created by combustion. | Yes | Yes |
What flue liner diameter do I need?
Your appliance installation instructions should specify the flue liner diameter - If this is not clear - we recommend that you contact the manufacturer.
Building Regulations Approved Document J also contains guidance on flue liner sizing.
In any case, you should never reduce the diameter of the flue at any point in your installation. E.g. if your woodburning stove has a 6inch 150mm diameter outlet your flue should not be smaller in diameter.
Flue liner length
Our flexible flue liner kits contain 10 metres of liner.
