Hot Water Boiler Manual – Models H 635, H 650
13
Fig. 3: Boiler section
4
Firing flap
5
Underburning / through-burning flap
6
Long fire bar
7
Short fire bar
8
Grate mechanism
9
Long fire bar support
10 Short fire bar support
11
Fire clay panel
12
Ash tray
17
Burner hole plug
23
Fire bridge
24
Secondary air lever
25
Hot water exchanger