Boilers and Softened Water
The Heating and Hotwater Industry Council (HHIC) have a Q&A in its consumer guide about protecting your boiler and heating system. Here’s what is said regarding limescale, softened water and boilers:
Water softeners are a way to offer “whole house” protection against limescale. Some boilers are not recommended for use with softened water (ion-exchange) in the primary circuit, so, if in doubt, always ll the heating system using un-softened mains water. This can be done by simply opening the bypass valve on the water softener installation plumbing temporarily whilst filling, or by having a separate mains water feed directly to the heating system filling loop, or feed and expansion tank. The boiler manufacturer may give more detailed advice in their appliance instructions, which must always be complied with to ensure that your boiler warranty is protected.
CLICK HERE FOR MORE INFORMATION