Operating The Damper (Optional) - KAL-FIRE 45 Installation And User Manual

5.6.1 Topping up with wood
To maintain optimal heat output, top up the fire with new wood as soon
as the flames have disappeared and the logs are starting to glow (no
smoke development). To add new logs, you need to open the door
slowly, to prevent smoke escaping into the room because of the sudden
draught. Do not add more than 2 to 3 logs (see maximum weight wood,
table 5). When the logs are burning strongly, you can close damper (if
installed) again.
A rule of thumb: 1 kg of wood provides about 4 kW of energy.
The Heat Pure is suitable for discontinuous use. This is achieved by
burning according to table 5.
5.7

Operating the damper (optional)

Depending on the situation, an external damper can be connected to the
Heat Pure (see section 3.6). Attention! It is not necessary to install a
damper in all situations! After the installer has installed the damper, you
can operate it using the knob on the side of the surround.
When using an original Kal-fire damper, the letters "Auf or +" on the
knob show the open position. "Zu or -" is the closed position. Set the
required position by turning the knob. The position of the damper
depends on the draught in the flue and the way the appliance is being
used:
When lighting the
fire
When burning with
closed door
When burning with
open door
damper fully open.
The damper can be closed to 20-50% which will
calm the flames. If you want to top up wood,
open the damper completely, before opening the
door. When the wood is burning to your
satisfaction, you can partly close the damper
again.
Fully and permanently open the damper.
44
5. Lighting the fireplace