Polhill Garden Centre,
London Road
Badgers Mount,
Nr Sevenoaks
Kent, TN14 7BD.
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Tel: 01959 532444 | Fax: 01959 532455
Email: info@kelvinfireplaces.co.uk
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Jet Master Fires - Technical - Kelvin Fireplaces Ltd
Choosing a Universal Convector Fire
The table will help you choose the most suitable size of fire.
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Decide the largest fire that your fireplace opening (which may be enlargeable) and your chimney will allow.
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Decide the smallest fire capable of heating the room on its own, with your choice of fuel.
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Within this range, decide which size best complements the aesthetic proportions of the room.
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If burning wood, and particularly if you may want to burn wood overnight, we recommend a fire capable of burning sizeable logs. |
The size of chimney you will need for your fire to work properly
Jetmaster fires are designed to ensure that smoke and flue gases are cleared properly and effectively. It is therefore vital that you choose the right size fire for your chimney. The specifications chart shows the recommended and minimum flue sizes as well as the chimney height required. If you have an existing chimney you will need to measure:
- The internal size of the flue at its narrowest point – either the diameter if it is circular or the length of its sides if it is square.
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The height from the top of the fire opening to the top of the flue.
If you are building a new chimney, ensure that it is designed to meet our recommended flue dimensions as well as current Building Regulations. |
Making sure you have the correct air supply
Current Building Regulations require that a room has an air supply. You may require additional permanent ventilation to comply with the building regulations and to help remove smoke and flue gas to make the fire burn more effectively.
A new source of air supply will be needed where a room has been double glazed or well sealed in some other way. |
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Wood Tray and log retainer
This is for burning wood only. It consists of a tray and a log retainer. The tray is designed to hold a good bed of ash, and the grid to prevent logs rolling forward. The retainer is detachable from the tray to make it easier to remove the ash. Log retainers are supplied in cast iron or steel for sizes up to E700 and in steel only for the larger fires. |
Basket grates
These grates are designed to burn coal, smokeless fuels or coal and wood mixed together. The basket is made up of 12mm steel bars with a drop in cast iron bottom grid and each grate is supplied with an ashpan, with carrying handle, made of sheet steel. Replacement bottom grids and a gas conversion are available. |
Arched Lintel
This is a curved lintel made of steel, which bolts on to the fire unit and converts the basic square shape of the fire into an arch. It is fitted during the construction of a new fireplace, beneath the main structural lintel. It can be used to support the weight of a few courses of brick or similar material if necessary. |
Firescreen
This clips on to the frame of the fire. It is made from fine mesh steel in a steel frame and prevents sparks and embers falling out of the fire into the room.
Note: Not all accessories are suitable for all fire units. Please consult the accessories/grates chart. |
The Frame
The Frame can be fitted to either a 600 or 700 Universal or 18″ and 22″ gas convector. The frame comes complete with fireguard and woodtray in the Universal version.
As The Frame still convects heat, you will need at least a 75mm gap between the frame and hearth. |
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