Water heater WetAir MWH1-80L
MWH1-80L
- Power
- 1500 W
- Tank volume
- 80 l
- Heating element
- enamelled wet element, magnesium anode
WetAir · MWH4-80L
MWH4-80L stores 80 litres of water and heats it with a 1500 W dry element. Five temperature presets give you a straightforward choice from 35 to 75 °C; ECO corresponds to 55 °C.

How it works
In MWH4-80L, water heats in an 80-litre tank, ready to be drawn through the connected water system.
Cold water enters the storage tank. The tank must be completely full before the first electrical switch-on.
The dry element transfers heat to the water through a protective enclosure, without direct contact between the heater and the water.
The controls call for heat to maintain the selected temperature. As hot water is drawn off, cold water enters the tank and the heating cycle repeats.
The resultStorage separates heating from the moment of use: a hot-water supply is prepared first, then drawn off.
Simplified diagram: the dry element transfers heat through a protective well; the element itself does not contact the water.
The 80-litre tank holds 30 litres more than the series’ 50-litre version at the same 1500 W rating. More stored water does not mean instant heating; allow for reheating between periods of use.
The five settings are 35, 45, 55, 65 and 75 °C. ECO maintains 55 °C; choose the temperature for your usual hot-water use.
Leave space around the connections for inspection and service. Overheat protection and the IPX4 rating complement the design; they do not remove the need for correct installation.
Have installation and electrical and water connections carried out according to the manual. Leave access to the panel and service connections.
Never energise an empty tank. Once it has been filled correctly, select a temperature and allow it to heat.
Hot water can scald. Mix it carefully with cold water at the tap and check the temperature before use.
55 °C. This model’s maximum setting is 75 °C.
No. This is an 80-litre storage model; reheating takes time after the hot-water supply has been used.
Model documentation and WetAir support.
These links open general WetAir retailer pages and do not confirm stock for this model.
Practical guidance to help you use your appliance confidently and comfortably.