Calmat® is a phsyical water treatment system that does NOT use chemicals or salt. It does not change the chemical mixture of the water. Instead, it changes the physical characteristics of the scale crystals in a way that the scale particles lose their adhesive power. Calmat does not need to have direct contact with the water and sits outside of the pipe.

It treats the water with electric impulseswhich are generated in the electronic unit and are controlled by a computerized micro-chip. The signal-frequencies are transmitted via the Calmat-impulse-cables that are wrapped around the pipe. The cables interact as pairs and form a frequency-field that changes the crystals in the water as it flows by.

calmat® is designed as a do-it-yourself product. It sits outside the pipe and you do not need to cut the pipe. The installation is very easy and takes approx. 10 minutes. No tools are required.

What type of pipe material does calmat® treat?
calmat® is suitable for all pipe materials: iron, galvanized iron, copper, steel, stainless steel, plastic, PVC, PE-X, compound pipes (any material mixture) etc.

Are there unusual high levels of certain substances in the water? If yes, have they be taken care of?
Fe: The iron and metal concentration in the water should not exceed 1 mg/l (1 ppm)
Mn: The manganese level should not exceed 0.1 mg/l (0.1 ppm)

Boilers and heaters
calmat® works best for systems with heating elements surface temperatures of max 207°F /97°C.

Where should I install calmat® in my home?
calmat® is mounted outside of the pipe with no need to cut the pipe. It should be installed at the point where the incoming water supply line is going into the house. Most of the time this is close to the water meter. This way, a single calmat® treats all the water pipes in the house. European homes usually have a basement, so the main water pipe sits somewhere there, inside the house. Many homes allow access only outside the house. This again is usually where the water meter is located. calmat® is a waterproof unit suitable for outdoor installation. We also offer a range of additional features such as a solar power charger in case that there is no power supply nearby.

How do I know that the calmat® is operating efficiently?
The green pilot light indicate that the impulse generator is operating efficiently. In case these lights are not illuminated, please check the power supply voltage or contact your local distributor.

Which voltage ranges are suitable for the electronic power supply unit?
All calmat® power supply units are suitable for voltage ranges between 87 Volt – 260 Volt and 50 Hz – 60 Hz. It can therefore easily caters to all international power plugs. We are glad to supply you with the correct power supply unit in case of an international relocation.

How many units do I need?
Private homes are taken care of with one unit that treats the whole house. In larger buildings or industrial settings it depends. Typically, one larger unit gets installed on the incoming water supply line to the building. If you have a cooling tower or closed loop systems, another smaller unit would go there.

What are the power costs of calmat® per year?
calmat® is completely maintenance-free. The cost of electric energy per year amounts to approx. 5 - 7 USD.