DGF Fabrications Renaissance 16" User, Installation & Servicing Instructions page 9

Note: It is important that enough space is allowed for behind the fire for any falling debris to
collect without blocking up the flue-way. The following recommendations should be adhered to.
Fig 9
With the chairbrick in position
then the minimum depth of the
fire opening must be not less
than 210 mm for the appliance to
be fitted without the spacer box.
210
Min 190
Class II Applications
Opening Requirements :
The following requirements are for dry lined walled pre-cast flues conforming to BS1289 Part 1:
A pre-cast flue conforming to the current issue of BS 1289 and BS 1289 Part 1 including properly
constructed pre-cast flues with a cross sectional area of 13000mm
Fig 13
Min 325
Fig 11
With the chairbrick removed
then the minimum depth of
the fireplace opening must be
not less than 190 mm for the
appliance to be fitted without
the spacer box.
Starter
Plaster or
block
plasterboard
Sealant
Check that the plasterboard or
plaster is sealed to the edge of the
opening as shown.
Fig 10
If the depth of the fire opening
with the chairbrick in position is
between 210 mm and 160 mm
then the spacer box must be
fitted,
removed.
210-160
Fig 12
If the depth of the fireplace
opening with the chairbrick
removed is less than 190 mm
but more than 140 mm, then
the spacer box must be fitted.
Less than 140 mm on a Class
190-140
I flue, then the appliance is
unsuitable for this application.
2
.
NJL/GTECH- 3/10/06 Revision No.3
or the chairbrick
8