4
INSTALLATION
VENTILATION
Your stove requires ventilation to supply it with air for combustion. Ventilation is also required to ensure the proper
operation of flues and chimneys to ensure that the products of combustion are safely dispersed to the outside air.
Extraction fans lower the pressure in a building which can cause spillage of combustion products from an open-flued
appliance. This can occur even if the appliance and the fan are in different rooms. If mechanical extraction is
unavoidable in the same room as your stove then seek specialist advice to ensure safe operation of the appliance.
Usually a ventilation area of at least 550mm sq per kW of appliance above 5kW will be required. A trained
competent person should check air supply is adequate.
FLUE / CHIMNEY
It is important that the flue or chimney to which this appliance is to be connected has been checked by a competent
person to ensure its suitability and that it will work safely. The chimney or flue and installation should comply with
local and national building regulations. This stove is not suitable for a shared flue.
A flue draft of 10 – 20pa will be required and the following considerations should be taken into account to ensure
safe operation of the appliance.
•
The chimney should have an internal diameter of between 150mm and 300mm.
•
It should be able to operate safely at temperatures of 500deg C.
•
It should be free from leaks.
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It should be free from any internal obstructions.
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It should be at least 4.5 metres from the top of the stove outlet to the top of the chimney.
•
The chimney should be free from down draft and should typically extend above ridge level.
•
The appliance must not be connected to a shared flue system of any type.
•
Provision should be made to ensure the chimney can be swept in the entirety of its length.
If there is a draught in excess of 20pa in the chimney it may be necessary to fit a draught stabiliser.
HEARTH CONSTRUCTION
Hearths should be constructed of suitably robust materials and to appropriate dimensions such that, in normal use,
they prevent combustion appliances setting fire to the building fabric and furnishings and they limit the risk of
people being accidently burnt.
The hearth should be able to support the weight of the stove and its chimney if the chimney is not independently
supported.
SAFE DISTANCE FROM COMBUSTIBLES
Distance from Side
Distance from back
Hearth Temperature
Signet
50
50
100°C