Installation and Operating Instructions for
Bohemia X 40 Inset
Multi Fuel Stoves
Page
7 of 10
Reference: Pevex10004/AH/ver2 Date: June 2011
ALL CHIMNEYS SHOULD BE SWEPT AND INSPECTED BEFORE INSTALLATION OF ANY APPLIANCE
For relining existing chimneys 316 or 904 grade stainless steel liners or pumice cement liners in accordance with
Building Regulations Approved Document J should be used. Liners should be suitably insulated. We recommended that
any chimney relining is carried out by an experienced and competent installer who is HETAS registered (see
www.hetas.co.uk
). The HETAS Guide to Approved Products and Services lists Chimneys and lining systems suitable for
use with solid fuel.
CHIMNEY IMPORTANT WARNING
This stove must not be installed into a chimney that serves any other heating appliance.
The chimney must be a minimum height of 4.5 metres overall height and be in accordance with Building Regulations
Approved Document J.
Any chimney, either masonry or a prefabricated stainless steel system must be constructed and installed according to
building regulations. It is recommended that the minimum diameter of the flue liner be 125mm.
For new masonry chimneys we recommend pumice cement liners. A chimney draught of at least .06” (1.5mm) is
recommended.
BOHEMIA FLUE COLLAR
The flue collar is a 5” (125mm) outlet and is supplied pre-assembled on the stove in the vertical position however,
depending on the installation it may be more appropriate to remove the collar by removing the two M6 nuts and bolts,
rotating it 180 degrees and reattaching the nuts and bolts which will angle it at 30 degrees off the stove. This will help in
some installations where for example clearance is required to clear a lintel.
Additionally we are able to supply an offset flue extension which will position the collar 115mm behind the stove
allowing for installations where the collar needs to be further back.
Bohemia offset flue extension
INSTALLING THE STOVE.
The flue outlet can be attached to a suitable flue pipe and liner, when required, and left suspended in the chimney for
connection to the firebox after installation of the firebox.
The Bohemia inset is designed to fit against the chairbrick with a small gap that should be filled either with a rockwool
blanket or a weak cement/vermiculite fill. Air should not be allowed to pass around the outside of the body of the stove
into the chimney void. This fill should also act as an expansion joint. If an existing chimney is to be used it must be
checked for suitability. If suitable then a connection into the existing throat may be made by using a weak vermiculite fill
around the flue outlet and throating formed with a sand lime cement mix. It is important that the top of the firebox is
insulated to protect the lintel above the fire opening and also (if applicable) the fire surround top slip. This can be done
with rockwool or Skamolex Blue (calcium silicate insulating board) which is cut to fit. The stove must be secured into
position with fixing screws (not supplied) through the predrilled holes in the body of the stove. Removal of the internal
side and rear bricks will allow access to the predrilled holes.
The installation must be airtight so that room air is not drawn around the appliance into the chimney.
BAFFLE PLATE REMOVAL
The Bohemia X 40 inset stove is fitted with a twin baffle system to improve efficiency and reduce CO with the lower one
made from skamolex vermiculite and the upper one made from steel. Both baffles are easily removed to allow
installation of the stove and for gaining access for cleaning the flue pipe.
The lower skamolex baffle is supported on the two side bricks and the rear tertiary air diffuser. Removal is achieved by
gently lifting the baffle and easing one of the side bricks out of the stove. The baffle can now be tilted and guided out of
the stove.
