What flue do I need for an open fire?

Open wood burning and coal fires require a class 1 flue liner with a minimum diameter of 200mm. Open fires with larger fireplace openings (usually freestanding grates) will need larger flue sizes calculated alongside the height of the chimney and required ventilation.

Does an open fire need a flue liner?

A chimney liner is obligatory if you are installing a woodburning stove, gas fire or open fire in a new build property to comply with Document J of current Building Regulations. A chimney liner may be necessary in an older property if the flue inside your chimney is no longer safe to use.

Can I install a flue myself?

You can install an outdoor fireplace without a building consent, although you may still need a resource consent.

How much does it cost to open a flue?

The damper should always be fully open before lighting a fire and when the fireplace is in use. Close it when it’s not it use. Operating the fireplace with the damper partially closed will not generate more heat. Instead, blocking the passage through the flue will result in smoke entering the home.

Do you need planning permission for a wood burner flue?

Since any changes to your chimney is considered building work, there are a number of building regulations that you will need to adhere to. They are all listed in Document J, which you can see here.

How much does it cost to have a flue liner fitted UK?

The average cost of just supplying the liner will be between £175 per metre and the rest will be the labour. It can take between 1 and 3 days to install a chimney liner depending on the complexity and the average cost of the tradesman will range between £180 – £250 per day.