Osburn Stoves by SB I 2200 ユーザーズマニュアル
21
5.
Note that any tube can be replaced without disturbing the baffle.
Important Notes:
The air tubes are identified for placement as follows:
Front to back:
Tube No. 1 67 Holes of .156” diameter
Tube No. 2 67 Holes of .140” diameter
Tube No. 3 67 Holes of .140” diameter
Tube No. 4 67 Holes of .125” diameter
Figure 3.4 – Secondary Air Tube replacement