B. Check Appliance Draft
Check draft of appliance to verify proper venting conditions.
•
Close all windows and doors, turn on all exhaust fans in
home.
•
Appliance is to be completely assembled to normal
operating condition.
•
Turn on appliance and allow to operate for at least 10
minutes.
•
Check draft as shown in Figure 13.1. This can be done
using a smoke or fl ame producing match.
•
Hold lit match at bottom edge of draft hood opening and
observe fl ame/smoke per the fi gure.
Flame up-Acceptable
Flame in-Good
Flame out-Bad
Without
doors.
Figure 13.1 Checking Appliance Draft
28
Flame up-Acceptable
Flame in-Good
Flame out-Bad
With doors
closed.
Heatilator • Caliber Multi-Sided B-Vent • 4002-094 Rev H • 11/07