Woodfire EVO 20, Руководство по эксплуатации и установке, Страница: 7 / 21

offsets, then the pipe diameter needs to be increased.
Sufficient incoming air in the installation room for combustion must be observed. Building
Regulation Document Part J require that a fixed air supply from the outside should be
installed into the room where the stove is sited for the combustion air (Refer to Part J,
Section 2, Table 1: Air supply to solid fuel appliances).
Forced-air ventilation systems, extractor hoods or similar appliances which are installed in
the same area as the stove will result in an increased demand on the incoming air supply.
In such cases, please ensure that there is sufficient air able to enter the area to supply the
stove and other appliances.
Attention should also be paid to having room in the stove chamber for any pipework, the
load unit etc. Serviceable parts of the system should be sited outside of the chamber or
appropriate provision made for access.
End users should be strongly recommended to fit a smoke alarm and be guided to fit a
carbon monoxide alarm in accordance with BS 8511:2012 (Annex C.5)
2.2 Hearth
The sub-base and hearth must be able to carry the full weight of the boiler stove. The
stove should be positioned on or above a non-combustible hearth and the hearth should
extend a minimum of 300mm in front of the stove door.
If the stove is raised up and the hearth is to be at floor level then we recommend that you
increase the depth of the hearth to ensure that any embers that accidentally fall from the
stove land on the hearth and not the floor. Please refer to Building Regulations Approved
Document J for more specific details
2.3 The Chimney
The chamber should be closed off above the stove with a concrete slab, lintels or fireproof
stud work.
The following chimney designs are possible:
•
Brick wall chimney: This should be lined with pumice liners (not clay liners) of the
correct diameter and the starter block should be set on the slab. The stove is then
connected to the starter block with an adjustable length of single skin flue.
•
Assembled steel insulated chimney: The hole in the chamber roof should be a good
fit around the pipe using a fire stop plate.
•
Stainless steel flexible liner (suitable for solid fuel, either 316 or 904 grade liners):
The liner should be insulated. The stove should connect to the appliance via a
length of rigid flue at least 500mm long. The liner should be firmly fixed to the
chimney wall with a bottom support bracket or, if that isn't possible, then every pipe
connection, including the connection to the stove, should be secured with at least
two stainless steel self-tapping screws. The flexible liner should be insulated. The
chimney should be fitted with a cowl or appropriate chimney pot to prevent rain
entry.
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