Aquael Comfort Zone Gold 150W

The principle of operation<br />
Traditionally, glass heaters, talking with some simplification, consist of thermostat contacts and heater coils. The thermostat controls the temperature of the water in the tank and, if necessary, closes or opens the contact, and thus starts or stops the heating process of the spiral.<br />
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The most sensitive element of this system are the contacts over time due to metal oxidation, their surface is gradually contaminated.