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What is a standard size flue?

What is a standard size flue?

The Building Regulations require that the minimum flue size for stoves are as follows: Up to 20kW burning smokeless fuel – minimum 125mm diameter. Up to 30kW burning any fuel – minimum 150mm diameter. That said, if the stove you have chosen is Defra Exempt and has a 125mm outlet, then a 125mm diameter flue may be used.

What size flue do I need for a wood stove?

So the regs recommend a minimum flue size of 150mm for any stove (on which wood could be burnt) unless it is Defra Exempt. That’s worth remembering because many non-Defra Exempt stoves come with a 125mm flue outlet, which then requires upsizing to 150mm.

Will wood burning stoves be outlawed?

There’s no need to panic, wood burning stoves will not be banned. You can still use your old stove. New regulations come into force in 2022. You can buy a new highly efficient, clean burning stove now.

How do I know what size flue I need?

If the flue is circular, then it should be at least one-tenth the size of the fireplace opening. Flues should also mirror the size of a chimney. If a chimney’s diameter is six inches, then the flue should also measure six inches. Again, if the flue is too big, though, it can mean the fire cools too quickly.

How do I measure my flue?

1 – Measure Your Chimney Flue

  1. Measure inside the chimney SIDE TO SIDE & FRONT TO BACK at the narrowest part of the flue (usually about 600mm above the opening).
  2. FINALLY measure to the narrowest part of the flue from the top of the fireplace opening.

What flue pipe do I need?

The general rule is as follows: For a stove of up to 20kW a minimum of 6” diameter flue is needed. You can use a 5” diameter flue liner if you have a DEFRA approved stove and the manufacturer clearly states this is compatible.

What are the new rules on wood burning stoves?

New laws banning the sale of certain types of fuel come in force aimed at cutting the amount of a kind of damaging air pollution. Anyone using a wood burning stove or open fire in the home from today must only use cleaner alternatives to wet wood and coal, a new law says.

Can a flue be too big?

When a flue is too big, the chimney can be too cold. Cold chimneys make keeping a fire lit more difficult. They also lead to condensation and possible mold inside the chimney brickwork. They key to making and keeping a great draft in your fireplace is making sure the proper sized flue is installed.

What should I use for an external flue for a log burner?

What should I use for log burner external flue? If you do not have a brick chimney stack and need to run the flue externally, you will need a twin wall flue system.This is effectively a double skin of chimney liner, with insulation in the middle, designed to be used as an external free standing chimney.

Do you need a register plate for a wood burner flue?

You may also require a register plate at the bottom, and at the top the liner will need to be connected to a chimney pot /cowl. Any gaps between the liner and brick stack should be backfilled with vermiculite insulation. For more detailed information please see our installation guide. What are the wood burner flue regulations?

What is the flue on a wood burning stove for?

The flue on a wood burning stove helps to remove waste gases and smoke from a stove out of your home. So where is the flue on a wood stove?

What kind of stove do you have at woodburner warehouse?

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