Installation & Operation
8
Installation
Ventilation
DIRECT FLUE ARRANGEMENT
When the installation of a mechanically driven exhaust 
hood is impractical the oven may be vented by a direct 
ue arrangement.
 WARNING!!
It is essential that the direct ue be installed 
as follows. Incorrect installation will result in 
unsatisfactory baking and oven damage.
The ue must be class B or better. The height of the ue 
should rise 6-8 ft (2-2.5 m) above the roof of the build-
ing or any proximate structure. Never direct vent the oven 
into a hood. The ue should be capped with a UL Listed 
type vent cap to isolate the unit from external environ-
mental conditions.
The direct vent cannot replace air consumed and vented 
by the oven. Provisions must be made to supply the room 
with  sufcient  make-up  air.  Total  make-up  air  require-
ments for each oven section should be approximately 30 
CFM (.85 m3) per section. To increase the supply air en-
tering the room, a ventilation expert should be consulted.
FLUE DIAMETER
Oven Single Double
SHO-100-G 6” (15cm) 6” (15cm)
Installing the draft hood
Ovens ordered for direct venting are supplied with a draft 
hood. Install the draft hood as follows:
1.  Place the draft hood over the ue connector. 
2.  Secure both ends with the sheet metal screws pro-
vided.
Flue
Draft Hood
Front of 
Oven
Figure 8 










