Worcester DANESMOOR FS12/18 Installation And Servicing Instructions page 22

Fig. 22. Electro Oil Sterling Burner.
12/18 model and 18/25 model
(Sterling 35)
Combustion Head
A
7.5mm
Draught tube Nozzle
Output
Combustion Head
kW
12-18 PL 6/7/21.5/10 x 78 mm
18-25 PL 6/7/21.5/10 x 78 mm
Fig. 23. Baffle Arrangements.
12/18 model
(Sterling 40)
Spark gap
0mm
2.5-3.0mm
Motor
Nozzle block
Dimension
A
5mm
5mm
Control
box
Transformer
Pressure
adjustment
screw
Baffles
Baffle
retainer
22
Lockout
reset button
Air adjustment screw
(4mm hexagonal head)
Pressure
gauge port
Combustion head
18/25 model
Pump