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Outside Air Connection; Installing The Fire - Dik Geurts Ivar 5-01, Low Installationsvorschrift

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5.5.2.2 Exempt appliances
Exempt appliances are appliances (ovens, wood burners and stoves) which have been exempted under the Clean
Air Act 1993 or Clean Air (Northern Ireland) Order 1981.
Appliances which are exempt for use in Smoke Control Areas: https://smokecontrol.defra.gov.uk/appliances.php
5.6 Outside air connection (if applicable)
Some fires can be provided with an outside air connection. For an optimum operation of the appliance, the
following should be taken into account in case of an outside air connection:
Further information on the outside air connection, if applicable, can be found in section 9 'Appliance specific
information'.
Please note that HETAS product approval remains valid for the appliance only when installed with its air supply
taken from the room of installation and the room is ventilated permanently to outside air as necessary in
accordance with the guidelines given in Approved Document J. HETAS product approval is not valid for
appliances fitted with an external air supply ducted directly to the appliance.
5.7 Installing the fire, general
!Caution
A floor plate offers protection against smouldering ash and prevents the soiling of a marble or flagstone floor, for
Tip!
example. We therefore also advise using a fire-resistant floor plate when installing appliances on a wall or ceiling.
Ø
Use the fire's dimensional sketch to see which fire pipe diameter you need (see Annex 1, table 2).
Ø
Use a fire pipe that at least meets the requirements of standards as established in EN 1856-2 T600.
Ø
Install the flue pipes in such a way that a fire hazard can never originate.
Ø
When installing a free-standing fire take account of the minimum required distance from the fire to a
non-combustible wall. This distance amounts to 50 mm.
Ø
When installing the fire and/or flue pipes respect the minimum distance to combustible objects and materials as
shown in Annex 1, table 2.
Ø
Take adequate measures to avoid too high temperatures in any walls behind the chimney breast.
This also applies for materials and/or objects behind the wall.
Ø
Respect the flue duct requirements as described in paragraph. 5.2.
For any appliance-specific instructions we refer to section 9 'Appliance-specific information'.
If you are installing a built-in appliance take account of:
!CAUTION
34
The passage of the outside air connection and possibly the passage of a grate may not be smaller than the
passage of the outside air connection on the fire.
Make sure the maximum underpressure created in the combustion air supply pipe is 4 pascal. If a higher
underpressure is created, the fire will not function properly and (hot) flue gases may flow back into the
supply pipe.
Prevent placing the outside air supply in an underpressure area on the outside of the house. If possible, place
a supply pipe with T piece to 2 sides of the house.
The combustion air supply pipe may not be placed higher than the bottom of the fire. This will prevent flue
gases from flowing back.
The combustion air pipe that is connected to the fire should be made of non combustible material.
The fire will function properly with a flexible pipe with a maximum length of 11 metres and 4 bends. In case
of a longer pipe or more bends, we recommend placing a pipe with a larger diameter (100-125mm).
If a crawl space is properly aerated with open grates, it is allowed to retrieve combustion air from there. If
there is no proper aeration in the crawl space, it is possible that harmful radon gases are drawn in. This is not
allowed according to national regulations.
Do not make any changes to the fire yourself.
Use clean fabric gloves and avoid fingerprints on the fire and flue pipes.
Depending on the type of suspension, install the fire on a floor, against a wall or on a ceiling with sufficient
load bearing capacity.
Lay a fire-resistant floor plate if the floor is combustible. The floor plate in non-combustible material must
extend at least 300 mm away from the fire and be at least 300 mm wider than the fire. Check these distances
before installation on the basis of applicable national/local laws.
The minimum building-in dimensions according to Annex 1, Table 2.
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