Royal Cozyfires Super Hotbox Toaster MK4 - LPG - Manual (Page 9)

9 HM83 010710
2.4.1 INSTALLING THE APPLIANCE (Flue) Super Hot Toaster Mk4
Any permanent flue restriction must be removed and any variable dampers locked fully open or removed. If the flue has been used
previously for solid fuel, it must be swept PRIOR to installation. This appliance is suitable for installation into CLASS 1 & Class 2 flues.
410/490mm
555/590mm
Fig. 9
600mm
Class 1
A conventional brick or stone chimney with a minimum effective cross
section dimension of 225mm x 225mm.
A lined flue with a minimum diameter of 175mm having a chair brick and
throat lintel conforming to the current issue of BS 1251
(Fig 9).
The minimum distance required between the rear of the opening and the
front face of the surround is
220mm
I f a chairbrick is fitted, it must be removed for this application together with
any infill or rubble. Any remedial work should be carried out including
levelling the base beneath the fire (Fig 10).
NOTE: A restrictor plate is supplied with the IFU kit. This restrictor plate
MUST ONLY BE USED ON THIS FLUE TYPE!
Hatched area must be non-combustible and
flat to ensure a seal around the appliance.
Fire
Min 25mm
Cavity between
rear of unit and
back of flue
Fig. 10
600mm
500mm
410mm
555mm
Hatched area must be non-
combustible and flat to ensure a
seal around the appliance.
Fig. 11
The area beneath the metal flue box
must be a non-combustible material
25mm thick.
Class 2
A twin walled metal flue box manufactured to the current
issue of BS 715 with a twin walled 125mm diameter flue
and a minimum effective height of 3 metres (Fig 11).
The flue box must be insulated by the installer, using a
minimum of 25mm thick insulation.
NOTE: The restrictor plate supplied in the IFU kit
MUST NOT BE USED ON THIS FLUE TYPE!
Care must be taken to
ensure that the flue
spigot from the
appliance does not
impede the flue outlet
from the metal box
500mm