As little as 1.6mm of scale build-up reduces boiler efficiency by as much as 11%; increasing
energy costs and exposing costly appliances to scale damage.Calmag Water Conditioners offer a low cost solution to limescale prevention when water softening is not required.

Typical Users:

  • Local Authorities
  • Schools
  • Housing Associations
  • Sheltered Housing
  • Leisure Centres
  • Prisons
  • Nursing Homes
  • HM Forces Accommodation
  • Factories

Typical Uses:

  • Calorifiers and hot water heaters
  • Direct gas fired water heaters
  • Copperfin water heaters
  • Plate heat exchangers
  • Combination boilers
  • Thermal Store boilers
  • Electric showers
  • Water coolers

See how our Electromag solution is implemented in commercial project. Click to view Case Studies.


The Electromag water conditioner provides industry with a cost effective solution for treating problems with hard scale. Electromagnetic technology effectively reduces existing limescale, preventing new scale build-up, whilst enhancing heat transfer efficiency. Electromag is available in a range of sizes with low running costs and no maintenance needed.

The degree of severity of water hardness can vary, depending on where you live and the amount of hard scale minerals present in your water supply. 60% of UK households are in hard water areas. If you are suffering from problems with hard scale, you will probably recognise some of these tell tale signs:

Benefits of Electromag…

  • Prevents limescale build-up
  • Reduces existing limescale
  • Improves system efficiency
  • Protects plumbed-in appliances
  • Low running costs
  • Suitable for many applications
  • Range of sizes available
  • No chemicals
  • No maintenance required
Electromag Range…

  • E22 – 22mm
  • E28 – 28mm
  • E35 – 35mm
  • E42 – 42mm
  • E150 – 1.5 inch
  • E200 – 2 inch
  • E300 – 3 inch
  • E400 – 4 inch
View Brochure Click to view and download the Scale Inhibitor Brochure

Product Specification/Installation Guide