KORALUX - How to correctly install a towel rail radiator to prevent corrosion?
Corrosion is not usually a question of the quality of the tubular heater, but the external environment acting on the surface of the heater (relative humidity in the room) and the location in the room.
For maximum corrosion protection it is necessary that ...
... The radiator is placed beyond the reach of the spraying water (this is primarily the area above the bathtub / shower - Zone 0 and 1).
Any warranty claims arising from corrosion or surface appearance changes cannot be therefore applied to radiators located within the reach of water spray or aggressive solutions.
(With combined or direct heating or tubular radiators it is essential that the outlet is located as far as in zone 3 (0.6 meters from the boundary of the bathtub or shower).)
... the area where the radiator is located is sufficiently ventilated.
This means that adequate air exchange is provided. In such spaces, precipitation of moisture from the air in the form of condensate on cold radiators may easily occur, especially in turned-off and therefore cold heating elements. That condensed humidity may subsequently have an adverse effect on the surface of the radiator, causing corrosion in long-term exposure.
In the event that no regular ventilation, or no permanent air exchange, can be ensured, continuous operation of radiators needs to be ensured, in order to prevent the formation of cold areas in which the humidity will condense.