Is it necessary to have my boiler descaled?
Thanks to the Tank-in-Tank technology, ACV boilers and water heaters normally do not need to be descaled. Each DHW draw-off creates a brief underpressure in the stainless steel inner tank (at the moment that the draw-off tap is opened), followed by a slight overpressure (upon closure of the draw-off tap). As the inner tank is free to move, its walls expand and contract very slightly under the influence of these pressure changes and prevent the formation of lime scale on the exchanger surface: thorough testing and the testimony of numerous users in regions with calcium-laden water confirm that ACV Tank-in-Tank water heaters are truly effective in preventing the formation of lime scale deposits as opposed to traditional coil systems that necessitate frequent descaling. Thanks to this self-descaling feature, the heat transfer efficiency of our water heaters and their hot water output remain high throughout the service life of the installation. In some regions with extremely hard water and
