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The main consideration when choosing a gas stove, wood stove or multifuel stove will be the compatibility with your existing flue provision. Whether your property has a flue, chimney or none at all, although it is still possible to purchase a stove for all of these situations. We have therefore provided the following information with pictures to explain the different flue types and alternatives available to you.

For each type of product please contact one of the following types of installer;
Gas Safe Register
Hetas Installer
Gas Safe
For all Gas Stoves
For all Solid/Wood Stoves
For all Electric Stoves

However whilst the pictures and information below may be of help to you, they are in no way a substitute for having an on site professional survey carried out by a Gas Safe registered gas installer or Hetas solid fuel installer, which we strongly recommend. This should be done in all cases to check the compatibility of your chimney or flue with the type of appliance you intend to purchase, prior to making any final decision to avoid disappointment and additional unforeseen expense, which we cannot accept, any liability for on your behalf. Please note none of the gas fires shown on our website are suitable for Static or Mobile Caravans or Park Homes under any circumstances.

Brick Chimney ( Class 1 application )

Brick Chimney

A brick chimney is easily recognised by a chimney stack, with either a pot or gas terminal on your roof, which relies on the natural circulation of air through the room and up your chimney to expel the products of combustion. The minimum internal diameter will be 7” plus and it may have had a real solid fuel fire in previously, especially in the case of older properties sometimes identifiable by an existing chair brick at the back of the fire opening.

If you have a chimney you will be pleased to know that you will be able to have most types of gas, solid fuel or electric stoves installed, subject to a successful site survey.

Prefabricated flues ( Class 1 & 2 applications)

Prefabricated flues

These are usually a metal interlocking single or twin wall flue pipe connected to a flue box or directly on to the stove itself, with a gas terminal on your roof. Creating the same circulation of air as a chimney. A flue pipe with a minimum internal diameter of 7” or more is recognised as a class 1 flue and a flue pipe of less than 7” generally around 5” internal diameter is recognised as a class 2 flue.

Again there is both a large selection of gas stoves for class 1 & 2 applications available, dependant on the size of flue and flue in your property.

Precast Flue ( Class 2 application)

Precast Flue This flue is manufactured into rectangular hollow concrete or clay blocks that travel vertically, up through the cavity wall of your property, to a ridge vent or metal flue terminal on the roof. These flues tend to be very shallow in depth, so it is imperative that an on-site survey is carried out by a qualified installer to check suitability, before deciding to purchase any product to avoid disappointment.

Balanced Flue ( No chimney application )

Balanced Flue

A balanced flue gas stove is a glass fronted appliance, which is completely sealed from the room into which they are installed and vents directly to an outside wall. Air is drawn in from the outside for combustion purposes increasing its efficiency through an outer pipe whilst the inner pipe vents the combustion gases safely away to the outside of the property.

There is no electric supply required; hence no sound or natural air circulation is experienced as with a power flue appliance. There is also a choice of either outset or inset versions available.



Flueless stoves have been around for some time and incorporate the latest in gas fire technology using a catalytic converter which the combustion gases pass through converting all harmful gases into carbon dioxide and water vapour. The result is an appliance, which is 100% efficient with low running costs.

Flueless gas stoves can be easily installed into most rooms providing there is a gas supply, excluding bedrooms & bathrooms and the room meets the minimum size and ventilation requirements.


Please ensure you take the time to read all the detail contained in this section in relation to your existing flue circumstances before you proceed to purchase any appliance from us. Failure to do so could lead to you incurring additional costs in the return of any goods wrongly ordered by you which we will not accept any responsibility for on our part. If you have any further questions you can either email us or speak to a member of our sales team. We always recommend that you should have a survey carried out by a Gas Safe registered gas installer, HETAS installer or qualified NICEIC electrician (whichever is applicable to the goods you intend to purchase) to check and certify the compatibility of your chimney, flue, property and or circumstances prior to purchase to avoid disappointment. We also recommend that you should wait until you have the goods purchased, onsite, in your possession to take accurate measurements from before proceeding to carry out any building work or create any apertures in the wall to avoid potential costly mistakes being made, as manufacturers reserve the right to alter products or specifications without any prior notice as required.

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