If surpassing the maximum admissible draft of the chimney,
there increases the consumption of fuel, the temperature in
the combustion space and consequently, the heating output.
There arises the danger of overheating, and
consequently, excessive load on construction parts.
In case of excessive draft of the chimney, we
recommend to install a draft controller or a draft limiter.
3.3. Connection to the chimney
The tube of the smoke flue must be mounted on the neck of the discharge of combustion products.
The tube of the smoke flue must not be installed with a gradient towards the chimney.
There must be paid attention unconditionally that the tube of the smoke flue may not protrude into
clear diameter of the chimney; it would disturb the upward lift of the combustion products and would
make an optimum cleaning of the chimney more difficult.
Longer horizontal sections of smoke flue tubes reduce the necessary draft of the chimney.
Al the orifices mouthed into the same chimney, such as cleaning orifices of the stove and of the
chimney, must be shut.
In case of multiple employment of the chimney, the minimum vertical distance of two chimney
connections ought to be 30 cm at least. As a matter of principle, the fire places must be suitable
and approved for multiple employment of the chimney.
3.4. Connection to the heating system
The multi-fuel stove is only to be operated using component-tested safety installations.
The multi-fuel stove is fitted with a safety heat exchanger. The safety heat exchanger serves to ensure against
overheating of the water jacket (e.g. if the flow stops). In order to guarantee fault free functioning of the safety heat
exchanger this is to be fitted with a component-tested temperature limiting device. This is a feature that, when the flow
temperature reaches 95ºC, conducts cold water for cooling the water jacket through the safety heat exchanger and
thereby prevents any further increase in temperature (the cold water supply is not to be installed so that it can be turned
off).
Connection of the multi-fuel stove to the heating system should only be carried out by an authorized specialist
company so that technically perfect operation is guaranteed. The firm carrying out the work is responsible for the
faultless installation of the stove, or if the owner does it himself then he, himself becomes reponsible.
Connection to the temperature limiting device is absolutely essential!
The safety heat exchanger may not be used to heat water for domestic use.
The temperature limiting device is always to be tested by an expert after all the installation has been carried out.
In addition the multi-fuel stove is to be fitted with a safety valve tested according to DIN 4751 part 2.
The safety valve controls the pressure in the boiler and releases the pressure if it becomes too high.
If the water circuit for the multi-fuel stove is installed with shut-off valves on the flow return pipes, then it is to be fitted
with a separate pressure expansion tank to be located before the shut off valves.
Under no circumstances should it be possible to turn off the flow to and from the temperature limiting device.
When burning solid fuels in sealed systems then it should additionally be ensured that:
that sufficient water pressure (at least 2 bars) is available for the water for domestic use.
the system, including the service condition of the temperature limiting device, is examined at least once a
year by an expert.
