The Heating Specialists
“Every Home Deserves A Henley”
Henley
Stoves
6 | www.henleystoves.com
This appliance requires a constant supply of air to maintain proper combustion and effective flue performance.
An inadequate air supply can result in poor combustion and smoke entering the room which is potentially
dangerous. This supply of air can come from either:
• The natural leakage of air into the room in which the product is fitted.
• Purpose provided ventilation.
The amount of air required must comply with local building regulations and the rules in force. If spillage is
detected during commissioning then there may be insufficient natural ventilation and an additional air supply
will be necessary. Many older buildings are sufficiently ventilated by natural leakage of air to provide suitable air
supply for an appliance of 5kW output or less.
Extractor fans should not be installed in the same room as the appliance and any air vents should be positioned
so that they are not liable to blockage.
Ventilation
The chimney draw is critical on any installation and should be checked to ensure that it matches what is specified.
If it is higher than
recommended provision must be made to correct the overdraw. The draw can vary in different weather
conditions and the customer should be made aware of this. Failure to correct an over-drawing flue will invalidate
the warranty, and may damage the appliance.
Please remember that chimney draught is dependent on four main factors.
• Flue gas temperature • Flue height • Flue size • Flue terminal
The flue or chimney system must be in good condition. It must be inspected by a competent person and passed
for use with the appliance before installation. Products of combustion entering the room can cause serious health
risks.
The following must be checked:
• The construction of the masonry chimneys, flue block chimneys and connecting flue pipe system must meet the
requirements of the Building Regulations.
• A flexible flue liner system can be used if certified for use with solid fuel systems and installation complies with
manufacturer’s instructions and Building Regulations. The flue liner must be replaced when an appliance is replaced, unless
proven to be recently installed and in good condition.
• If it is necessary to fit a register plate it must conform to the Building Regulations.
• The minimum height of the flue or chimney must be 4.5m from the hearth to the top of the flue, with no horizontal sections
and a maximum of 4 bends. Bends must have angles of less than 45 degrees from the vertical.
• Ensure the connecting flue pipe is kept a suitable distance from any combustible material and does not form part of the
supporting structure of the building.
• Make provision to remove the appliance without the need to dismantle the chimney.
• Any existing flue must be confirmed as suitable for the new intended use as defined in the Building Regulations.
• The flue or chimney systems must be inspected and swept to confirm the system is structurally sound and free from
obstructions.
• If the chimney is believed to have previously served an open fire it must be swept a second time within a month of regular
use after installation to clear any soot falls that may have occurred due to difference in combustion levels.
• The flue exit from the building must comply with local building control rules.
• Do not connect or share the flue or chimney system with another heating appliance.
• Do not connect to systems containing large voids or spaces over 230mm square.
• Suitable access must be provided to enable the collection and removal of debris.
• The flue must be swept and inspected when the appliance is installed.
• The flue draught must be checked with all windows and doors closed and any extraction fans in this, or adjoining rooms,
running at maximum speed (see next section for additional ventilation requirements). Max. draught = 2.0mm Wg, Min.
draught = 1.0mm Wg
Chimney
Summary of Contents for Eden 5kW
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