9
Modulation
The gas wall heaters are units with 2-stage gas burner
modulation, whereby outputs between the minimum
and maximum settings are possible during operation.
The highest output serves for raising the room
temperature quickly when switching on the units.
The second stage enables a slower heat-up speed
of the space, which means that the burner is required
to switch on and off less often. Furthermore, the air is
heated less heavily due to the lower heat output,
which limits the physical emergence of layer formation
(tendency of the warm to rise).
These results can only be achieved through a precise
monitoring of the climactic spatial conditions and an
optimal control of the unit.
With the dimensioning of heating systems with
fan-assisted air heaters, it is important to observe
the number of hourly air renewals.
In this regard, please note the following: Gas wall
heaters should, in general, be arranged so that the air
flow rate ensures air recirculation at least twice hourly,
even if this would not be necessary for the heat
output.
Minimal pollutant emissions:
The premix burner provides for "clean" burning with
low pollutant emissions with the air/gas valve.
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