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19.4
Draining the condensate water
The draining device to take out the condensate water from the chimney should not be altered in
any way and it must be kept free of obstructions.
19.5
Boiler water characteristics
In areas with water hardness of over 25-30 ºfH, treated water must be used in the heating
installation to avoid any scale deposits on the boiler. It should be noted that even a few millimetres
of scale will greatly reduce the boiler’s heat conductivity, causing a major drop in performance.
Treated water must be used in the heating circuit in the following cases:
- Very large circuits (containing a large amount of water).
- Frequent filling of the installation.
If it is necessary to drain partially or totally the water of the installation very often, we recommend
filling it with treated water.
