Eco Stolz · Energy & Water Technology from Innsbruck

Limescale protection without chemicals. Pure water for your family.

Imagine your water being pure again: the chemical-free TESL® II limescale protection and powerful water filters from Eco Stolz protect your drinking water, your skin and your appliances, without salt, without maintenance stress, worldwide.

Discover
Fresh water splashing from the tap into a glass, drinking water quality with Eco Stolz
0 water per person
& day on average

What really comes out of your tap

Hard water & limescale, invisible, daily, in every sip.

Limescale that slowly destroys your appliances from the inside. Residues nobody wants to taste. You don't see it, but your washing machine, your kettle and your skin feel hard water every single day.

  • Limescale deposits shorten the lifespan of expensive appliances by years.
  • Higher energy costs from limescaled heating elements, often unnoticed for years.
  • Dry skin & dull hair from hard, stressed tap water.
  • More detergent, more chemicals, bad for your wallet, laundry and the environment.

The Eco Stolz solution

TESL® II: chemical-free limescale protection that mimics nature.

No chemicals. No salt. No constant maintenance. The TESL® II technology converts limescale into a harmless, non-adhesive form, your drinking water stays mineral-rich and healthy, your pipes and appliances stay permanently clear. That's how soft water feels without regret.

100% chemical-free Low maintenance Saves energy Protects every appliance

The TESL® II series

Water treatment for every home, choose your size.

From apartment to farm, you decide, we protect. Three models, one promise: pure, protected water without compromise and without chemicals.

TESL® II MINI

For apartments & household appliances

Reliably protects washing machine, coffee machine, kettle & fittings against limescale.

  • Ideal for singles & couples
  • Easy to retrofit
  • Noticeably softer water right away
Learn more →

TESL® II MAX

For industry, commerce & agriculture

Maximum performance for large systems, protects machines, lowers operating costs.

  • For high flow rates
  • Reduces costly downtime
  • Sustainable & economical
Learn more →

How your water filter works

Four stages between contamination and purity.

  1. 01

    Sediment filter

    Reliably holds back sand, rust and coarse particles.

  2. 02

    Activated carbon

    Binds chlorine, odours and unwanted substances from tap water.

  3. 03

    Fine filtration

    Removes the finest suspended matter for crystal-clear drinking water.

  4. 04

    TESL® limescale protection

    Converts limescale, completely without chemicals, completely without salt.

Four-stage water filtration from contaminated water to the pure drop

Eco Stolz water treatment in numbers

0 chemical-free & salt-free
0 less limescale damage to appliances
0 less detergent needed
0 longer appliance lifespan

For those who matter most to you

Healthy drinking water is care in action.

Every day, you decide what your family drinks, eats, and puts on their skin. With Eco Stolz you make a decision today that they will feel for a lifetime.

Vegetable garden watered with pure water, healthy nutrition with Eco Stolz

Healthy nutrition

Pure water for fruit, vegetables and every meal, noticeably better.

Hand filling a glass with clear drinking water at the tap

Drink with confidence

Fresh water straight from the tap, for young and old.

Protected household appliances thanks to limescale-free water from Eco Stolz

Protect appliances

Washing machine & co. run longer, quieter and more efficiently.

Families around the world trust Eco Stolz

Noticeably pure water, from day one.

“After just a week the water was noticeably softer. My skin thanks me for it, and the limescale rings are finally gone.”

Sandra K., family with 2 children

“Finally no more lugging salt, no maintenance. Simply installed and it runs. That's exactly how technology should be.”

Markus T., single-family home

“We now drink tap water again, without a guilty conscience. For our children, the best argument.”

Frequent questions about limescale protection & water filters

Everything you want to know about pure water.

Does TESL® II limescale protection really work without chemicals and salt?

Yes. TESL® II changes the crystal structure of the limescale purely physically so that it no longer adheres. No chemicals or salts are added, and the valuable minerals stay in your drinking water.

Do the healthy minerals stay in the drinking water?

Yes. Unlike classic ion-exchange softeners, TESL® II removes nothing from the water. You keep drinking mineral-rich, healthy water, just without the limescale problems.

How much effort is the installation of the water filter?

A professional installer carries out the fitting and it is usually done quickly. After that the system works in the background with little maintenance, very low power consumption from the electromagnets, no refilling, no effort.

Which TESL® II model suits which household size?

TESL® II MINI is ideal for apartments and individual appliances, MEDIUM for single- and multi-family homes, MAX for commerce, industry and agriculture. In the free consultation we find the right solution together.

Your pure water is just one conversation away.

Let's find out together which chemical-free limescale protection suits your home, no obligation, honest and free. Decide today for pure water.

Eco Stolz · Energy & Water Technology · Weißgattererstraße 12 · 6020 Innsbruck · Austria