What you should know about your heating system
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Logamatic 4121, 4122 and 4126 - Subject to technical modifications.
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Fig. 1 shows the heating circuit of a pumped central
heating system: The burner [2] heats the water inside
the boiler [1]. This heating water is transported by the
pump [3] through the flow line [4] to the radiators [6].
The
heating water flows through the radiators, and in
doing so, gives off some of its heat. The heating water
flows back to the boiler via the return line [7], where the
cycle starts again.
The room temperature can be adjusted to your personal
requirements using the thermostatic radiator valves [5].
All radiators are supplied with the same flow
temperature. The heat transferred to the room depends
on the radiator surface and the heating water
throughput. Therefore, the heat transfer can be
manipulated via the thermostatic radiator valves.
What determines the heat demand of a room?
The heat demand of a room largely depends on the
following factors:
– Outside temperature
– Required room temperature
– Type of construction/insulation of the building
– Wind chill factor
– Radiant energy from the sun
– Internal heat sources (open fireplace, occupants,
lamps, etc.)
– Closed or open windows
Take these factors into consideration to achieve
a
comfortable room temperature.
Fig. 1 Pumped central heating design
1 Boiler
2 Burner
3 Pump
4 Flow line
5 Thermostatic radiator valves
6 Radiators
7 Return line
Fig. 2 Influences on the room climate
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