The minimum height from the top surface of the frame of the fire to the underside of any shelf
shall be as follows.
For a shelf depth of 100mm (4”) from wall – Minimum height = 300mm (12”)
For shelves of a greater depth add 50mm (2”) to the shelf height for every 25mm (1”) increase
in shelf depth.
These are Jetmaster estimated distances, in certain cases further protection may be required
to guard against heat on combustible materials, such as increasing the shelf height or shielding
with a non combustible material.
This is because of the variability of the heat produced from a solid fuel fire. It is dependent on the
quantity of fuel used and the refuelling frequency. A comparable gas or electric fire has a known
fixed input and thus a fixed output.
Air Supply
All fires require a supply of air to support combustion and to allow the chimney to draw correctly.
Air starvation will result in poor flue draw and smokiness in the room
. All installations will
require a permanent dedicated air supply for the fire. Newly constructed houses, especially
those using double-glazing and employing modern draught control techniques, will need careful
planning of air entry. The size of air supply duct or ducts recommended for each fire is shown in
the
installation data table pages 1 & 2
.
The building regulations Part J and L must be taken into account when providing
ventilation for the fire.
Extractors or fans when operated in the same room or adjoining room of the fire may cause
problems.
If there is a fan or extractor fitted in the property then allowance for additional air may be
required.
See commissioning section.
If there is more than one appliance in the property then each appliance must be supplied with
adequate combustion air and ventilation so that all the appliances can operate simultaneously.
Bring air in to the room close to the fire. The ideal position is just to the sides of the fireplace
opening as shown. It can be split and brought up in two positions if required, one each side of
the fireplace opening.
9
Summary of Contents for Standard 16
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