ULTD_WHE_2S3S_01
21
11
Regulating the combustion air supply
The combustion air supply can be adjusted using the supplied handle. Maximum air supply for
combustion is achieved when the slidable handle is moved completely to the right.
It is best to slide the lever completely to the right when lighting the fire. Once the kindling wood is
nicely ignited after 10 to 15 minutes, the air regulator can be put back in the middle position.
If the handle is in the
middle position
(as shown in the figure), the fireplace burns at
nominal heat
output
. In this position, the combustion and efficiency are best when the chimney is drawing at 12
Pascal.
Moving the handle further to the left reduces the air supply and this decreases the output of the
fireplace. When you slide the handle further to the left from the middle position, this reduces the air
supply in the fireplace. Once the air supply is in the fully left position, the fire in the fireplace will be
extinguished.
ADJUSTING THE FIREPLACE IN THIS WAY ONLY INFLUENCES THE COMBUSTION
PROCESS WHEN THE FIREPLACE IS ON WITH THE DOOR CLOSED.
