WaterStillar Wall

 2 900.00 incl. Danish VAT (25%)

The compact & electrical solution: 85 litres hot bathing water and up to 15 litres of drinking water per day.

WaterStillar Wall is a combination of an electrical traditional water heater and a water distiller. Wall is meant for homes in non-sunny areas of the world and for homes with no access to the sun. Wall is a combination of a distillation apparatus and an electrical water heater, where the distillation process is used to heat bathing water. The heat from the electrical heater is used to evaporate water and this vapor is condensed up against the bathing water tank, giving back the heat energy to the bathing water. Two in one. Wall is built in the best materials available – european stainless steel 316L on the inside and galvanized/powder coated steel on the outside. We have preinstalled both security and check valves, so that installation is easy: Simply connect to the cold and hot water line in your home – and plug it in. The minimalistic design reflects our Danish Design DNA. The colour is matte white – strong powder coating.

Functional design features

  • No moving parts, besides 2 valves that fills/flushes the boiler.
  • Air and vapour tight design that ensures a sterile environment
  • Compact (will fit in a 60 cm wide closet)
  • Made from food-grade stainless steel, not causing problems with approvals and no need for anodes
  • Thicker insulation (up to 60mm) – less energy loss
  • No noise (less than 30db)
  • Refillable carbon filter included (stainless steel / tri clamp)

Working principle and efficiency

WaterStillar Wall distills water at a ratio of 1:1 and is therefore not more efficient than a normal distilling device. But the initial energy consumption is used twice and the second “effect” is free: you pay electricity for drinking water, but gets hot bathing water as a nice, free bi-product. Or vice versa. And you have only one devise, not two. Your kitchen tabletop can then fit all the other devices, we all have there. As WaterStillar Wall is an on-demand system it is the only device in your home that you need to have bathing and drinking water all year round.

Installation and maintenance

Wall is very compact and will fit in most apartments/houses. The inbuilt drinking water tank can be connected to a dispenser, the fridge or simply a drinking water tap in the kitchen. Wall has a smaller electrical heater than traditional water heaters and is only available in 230V for now. The heater is controlling the feed water temperature and is working 24/7 to provide enough distilled water for drinking purposes. Total energy consumption is the same as in conventional water heaters for the same amount of hot water. Wall is fitted with a mixing valve, a security valve and room for a carbon/softening filter and is ready to connect to the water line and the hot water line in your house/apartment. The system is pressure tested when leaving our factory and all you need is to connect hot/cold water to your home – and have a single phase 230V power outlet close by. Installation should be done by a certified plumber, but you can do it yourself (local legislation may differ, so please check first). All post treatment-filters, such as mineral filters, are optional. We recommend to buying locally, so that you can get replacement cartridges easily. There is only 1 thing to maintain: Descaling the boiler. Just like your coffe machine needs descaling from time to time. Descaling: If you have calcium above 2-3 dH in your water you should use a water softening filter to reduce the amount of calcium that enters the boiler. This will keep the intervals of descaling to a minimum. Any coffee machine water softener available locally will do.

Safe and eco drinking water

Unlike other technologies, distillation at high temperatures will produce the cleanest water possible. In combination with an optional carbon filter, you will have endless clean drinking water for decades. Regardless of what is in your feed water – distillation is the safest choice. Having your own drinking water in your home will reduce the number of plastic bottles you will use and throw away. Carrying bottles home and getting rid of the plastic waste is something you can forget about. Convenient and sustainable!


Adding minerals, flavours, syrups, bubbles and cooling down your drinking water is optional. Connect the drinking water to your fridge or install a special drinking water tap at your sink, that will make the installation complete and easy to use.

Additional information

Weight 60 kg
Dimensions 125 × 50 × 50 cm
Drinking water storage capacity

25 liters. Internal water tank in stainless steel with male 1/2" connection

Hot water storage capacity

85 liters

Drinking water output

Up to 20 liters. Depends on the hot water usage. Average approximately 10-15 liters per day.


White. RAL 9010, shine 30.

Power consumption

800W / 230V, Temperature controlled


Less than 30dB and only when the boiler is active. Otherwise silent.

Length of cable

2 meter cabel. Schuko. Black.

Pipe connections

1/2" threaded NPT for all in and out connections



Temperature sensor

High temperature (180C), type pt1000.


High temperature PUR insulation. Extra thick – between 60 and 80mm.

Wall hanging bracket

3mm steel, galvanized and 3 pcs holes for bolts/screws

Pipe sizes (internal)

With pressure: 8mm John Guest tubes. No pressure tubes: Silicone hoses (10mm)

Solenoid valves

24V DC

Security valve

Yes, included. Opening pressure is 6 bar.

Check valve

Yes, included.

Overheating thermostat

Yes. On the side of the boiler. Set temp is 130C. Can be reset by pressing the small button

Test pressure, water tank

12 Bar




WaterStillar Wall v.2 Manual EN v 2.3

Wall product sheet 2



(Click on CC for english subtitels)

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