Limescale Protection for Commercial Applications. The C Range is designed for limescale protection for heating, ventilation and plumbing services in offices, schools, hotels and other commercial buildings. These types of building can suffer from the effects of hard limescale build up on their boilers and on their heating and cooling equipment. This build up can not only reduce their overall efficiency, but can lead to expensive and time consuming maintenance or indeed to premature equipment failure. The applied signal can travel throughout the system including the cold services as well as the hot services, meaning that other equipment is similarly protected and deposits on sinks, taps etc. are easier to clean. The C Range is designed to offer a chemical-free alternative in addressing the effects of new and existing hard limescale encrustation on commercial boilers, heat exchangers and cooling systems. Standard units are available up to 200mm in diameter.