Verine Carmelo 1150 NHWV00RN NG Installation, User And Servicing Instructions - page 5
Page 5 of 14
which are large enough or can be altered to accept this appliance. The fireplace
should be made from or lined with non-combustible material. The appliance
dimensions are shown in Figure 1. If the fireplace has to be altered a lintel may be
required to support the masonry over the opening. Alternatively a false fire breast
may be constructed and the appliance connected to a prefabricated twin wall flue
system. This type of flue should be of at least 175mm diameter and T250 rating.
3
Wall Finishes
The appliance is supplied with an angled plaster support frame screwed to the front
flange of the firebox. This can be used when it is required that the wall is plastered
right up to the fire opening. This frame allows the plasterwork to finish with a clean
edge. If it is required that that the fire opening is be surrounded by decorative
stonework then this frame may be either left in position and the stonework butted
up to it or it may be removed and the fire opening framed by the finished stone.
Figure 2 gives the dimensions of the fire opening with the plaster support frame
removed. We recommend that wallpaper is not taken right up to the fire opening.
4
The Hearth
The hearth supporting the appliance within the fireplace must be made of a non
combustible material at least 12mm in thickness. In order to provide a tactile
warning to persons approaching the naked flames we strongly recommend that an
external hearth or a shelf mounted on the wall beneath the appliance opening so
that it projects at least 100mm both in front and either side of the appliance. This
hearth or shelf should also be made of a non combustible material and of at least
12mm in thickness and its upper surface should be at least 50mm above floor level.
BS 5871 Part 2 allows the installation of a fender at least 50mm high surrounding a
non combustible surface to satisfy this height requirement. If it is decided not to fit
a shelf or an external hearth the appliance must be installed so that the top of the
burner is at least 225mm above the finished floor level. Consideration should be
given to providing an equivalent level of safety with regard to the proximity of naked
flames as given by an external hearth.
5
The Chimney Flue
The chimney should be of the open-flue type and have a minimum cross sectional
dimension of not less than 175mm.
The flue must have a minimum effective height of 3 metres and have a temperature
rating of at least T250. If a proprietary metal twin wall gas flue is to be used the
appropriate appliance connector fitting will be required.
No restrictor plate or flue damper is permitted. Where a variable damper is fitted it
must be removed or locked in the open position.
The chimney must be swept before the appliance is fitted.
FIGU
RE 2