INSTALLER GUIDE
Page
12
FIREPLACE CHECK
5.1 Fireplace physical requirements
5.1.1
Fireplace size
The fireplace must comply with the requirements described in section 3.4. This will
probably entail removing the fireback and infill material behind the fireback. The area
shown in figure 1 must be kept clear of obstructions.
5.1.2
Fireplace general condition
The fireplace floor should be reasonably flat to ensure that the convection box can be
installed without it rocking and so that a good seal can be made at the bottom front of the
box. The front face of the fireplace should be reasonably flat over the area covered by the
convection box top and side flange seals to ensure good sealing. These faces should be
made good if necessary. If the appliance is to be fitted against a wall with combustible
cladding, the cladding must be removed from the area covered by the convection box
outer surround. The cladding must also not touch the surround flanges. We suggest that
the actual surround is used as a template to mark the area for combustible cladding
removal and that this area is increased by at least 2mm all round.
5.1.3
Soundness for appliance attachment
Two primary methods of retaining the appliance are provided: -
1)
By fixing the convection box front flanges.
2)
Using concealed tension cables fixed to the rear of the fireplace opening.
Method 2 is provided for instances where drilling holes in the front surface of the
fireplace surround is unacceptable to the customer or otherwise impractical.
The methods are detailed in section 8 of this manual. Before selecting the retention
method, consult with the customer.
Method 2 is strongly recommended where the appliance is to be fitted against
marble in order to prevent any danger of the marble cracking due to drilling.
However, if method 1 must be used with a marble surround, be aware that it is
unwise to attempt to drill into marble without the proper tools and equipment.
5.2 Fireplace flue pull
.
Close all doors and windows in the room in which the appliance is to be installed. After
confirming with a match that smoke is drawn into the flue, light a 13 gram smoke pellet
and check that there is a definite flow through the flue. Verify outside that the smoke
exits from one terminal only and that the termination is suitable. Observe, where
possible, upstairs rooms and loft spaces for signs of escaping smoke indicating a
defective flue. If there is not a definite flow warm the flue for a few minutes and repeat
the smoke pellet test. If there is still no definite flow the flue may need remedial work
–
Do not fit the appliance until there is a definite flow through the flue.
