Figure 2
3.2.10 Smoking – Causes and Troubleshooting
To reduce the likelihood of smoking when opening the doors, set the air damper to the
"accelerated combustion" position and open the by-pass damper before opening the
doors. Your fireplace has been designed and tested to provide smoke free operation.
Occasionally, there may be a small amount of smoking upon lighting the fire, until the
chimney heats up but this should not continue. If the fireplace does continue to smoke, it
is probably for one of the following reasons:
1. The door is partly open
Open the door fully.
2. Negative pressure in the house
As the fire burns, air goes up the chimney. This air must be replaced through leakage into
the house or through the outside air duct. When operating the BIS PANORAMA, open a
nearby window temporarily to check if there is adequate air replacement.
3. Fans operating (e.g.: range hood)
These fans draw air out of the house and may actually cause a negative pressure in the
house. Turn off all fans and open a nearby window to determine if this is the cause of the
problem.