Installing A Stove Into An Existing Unlined Chimney

Installing A Stove Into An Existing Unlined Chimney

Whilst this seems the easiest way of installing a Woodburner we do not recommend this type of installation due to the build up of tar deposits in the chimney.

PLEASE NOTE: Please seek the advice of a registered HETAS installer who will be able to advise you best on the installation or even better install it for you.

What is needed to install my woodburner?

Below you will find the products needed to install a stove into an existing unlined chimney.

1) Woodburning Stove, Multi Fuel Stove etc

2) Single Skin Stove Pipe

3) Register Plate (must be 1.5mm Steel and needs to be sealed so that it is airtight so no smoke can come back into room)

Important Guidelines To Follow When Installing Your Stove

To find out what output of stove you require simply use our Online Stove Output Calculator

When determining what stove will fit into your fireplace you most follow the following guidelines:

1) You must have a gap of 150mm each side of the stove to non combustible materials. If there are combustible materials to the side then please consult the installation manual for the stove.

2) You must have 230mm above the stove to non combustible materials. If there are combustible materials above then please consult the installation manual for the stove.

3) You must position the stove at least 50mm from the back of the stove to the back wall (If non combustible).

4) Your hearth Must extend at least 225mm in front of the stoves firebox.

5) You Must also ensure that if your stove has a greater output than 5kw you must have an air vent in the room venting out to an external air source

Please note this page is designed to give you a basic idea of what is required and does not give any installation instructions as it is recommend you seek the professional advice of a Hetas installer.