Installation; Hearths And Recesses; Combustible Materials - Hamlet DEFRA Installation And User Manual

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2 Installation

The stove should be installed on a surface with adequate load bearing capacity.

If the existing construction does not meet this prerequisite, suitable measures

(e.g. load distributing plate) should be taken to achieve it. Please pay particular

attention when examining existing building work for suitability to meet the

following requirements.

When installing an inset stove, hearths should have a su ciently at surface to

allow a good seal to the stove body to be created during its installation. Stonework,

uneven bricks etc., may need further work to ensure that this can be achieved.

Any voids behind an inset stove should be lled with vermiculite or similar.

The stove should be installed on a non-combustible surface not less then

125mm thick (conforming to Building Regulations unless otherwise speci ed) of

suitable load bearing capacity and heat resistance. Allowances should be made

for the expansion and contraction of any materials which are tted up to and

near the appliance.

Dimensions of the constructional hearth for all stoves should project at least

500mm forward of the front of the appliance and 150mm at the sides. The surface

of the hearth should be free of combustible materials. The superimposed hearth

for all installations should project at least 225mm forward from the front of the

appliance and 150mm either side of the edge of the appliance.

In most buildings with solid concrete or stone oors, the requirement will be

met by the oor itself, but mark the hearth to ensure oor coverings are kept

well away or use di erent levels to mark the hearth perimeter.

Please be aware that hot air can cause staining above the re in a similar fashion

to walls above radiators. To help prevent this and cracking we recommend that

any plaster above the re should be tted with reinforcing expanding mesh for at

least 220mm above, and the full width of the re. You should also use a suitably

heat resistant plaster which should be allowed su cient time to fully dry before

using the stove or cracking is likely to occur.

Please view the product sheet which accompanied your stove for speci c

minimum distances to combustible measurements.

BK575 Rev03

DEFRA Stove Installation and User Guide

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