Class 1 Flue

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.

Brick chimneys have a flue that will be deep enough for all types of fires, all fires from slim fitting to deep fires will be accommodated by the flue. Class 1 brick flues will have a minimum diameter of 7 inches.

Class 1 Flue

Pre Fabricated Flue

These are usually a metal interlocking single or twin wall flue pipe connected to a flue box, with a gas terminal on your roof. Creating the same circulation of air as a chimney.

Class 2 pre-fabricated flues will be located in the same position on the roof where brick chimneys are. This type of flue is suitable for most types of gas fires and gas stoves as the depth of these in usually sufficient. This type of flue normally has a diameter of 5 inches which is enough to accommodate most types of fires.

Pre Fabricated Flue

Pre-Cast Flue

Many new properties that do not have chimneys are fitted with Pre-cast flues. 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 are suitable for electric, slim line gas fires and stoves. Spacer kits are available to those who wish to have a full depth gas fire but unfortunately solid fuel fires or those with an open basket are not suitable for pre-cast flues.

Pre-Cast Flue

Power Flue

A power flue fire is available for new homes built without a chimney or older properties where the flue is no longer of sound integrity. The fire has an electronically driven fan system on the outside of the wall to expel the flue gases and as such a sound is to be experienced when the fan is turned on.

Asfan or Power flues do not use a chimney or any type of roof outlet. These are normally used with open front gas fires, this increases the range of gas fires you can choose from, these fires must have an electricity supply to make them work which acts a safety mechanism.

Power Flue

Balanced Flue

A balanced flue is a glass fronted gas fire, 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. These appliances have very high heat outputs and can be too over powered if installed in the wrong type of room.

Most clients opt for a flueless gas fire with an open flame, higher efficiency and fraction of the cost.

Balanced Flue
Fireplace Fitting
2 Castle Court
Castle Road
Eurolink Ind Estate
Sittingbourne
Kent, ME10 3TB
Phone/Fax: 01795 599234
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