1611UDSBD-3GBEN, Pag. 12/36
Flues for power
ventedinstallations
(type B appliances)
Figure 3a : Approved
appliances type B
If the air heater is to be installed as a type B appliance, air for combustion will be
taken from within the space where the heater is installed. Ensure that an adequate
air supply for combustion and ventilation is provided within the building in ac-
cordance with BS6230/BS5440 plus other relevant regulations & rules in force.
B22 - roof
B22 - wall
Figure 3b :
Type B appliances :
Combustion air and flue
pipe sockets
1) Flue pipe outlet collar
2) Combustion air inlet opening
2
1
1
2
Models 025-3 & 030-3
Models 015-3 & 020-3
