Three Safety Lines for Bathroom Heating

First, the IP rating. Above the shower it must be IPX4 or better; IPX2 belongs by the door or in the dry zone.

Second, mounting height. Wall units sit at least 1.8m from the floor and never directly above the shower head; ceiling units must avoid the joist line.

Third, the circuit. A bathroom heater should run on its own breaker with an RCD — not sharing a strip with a hairdryer and a washing machine.