Bath Plumbing & Heating

When having your boiler changed, it is advised (a requirement) that a power flush be performed on your old existing system. The reason for this is that modern high efficiency boilers have much smaller heat exchangers; and are prone to blockage: especially the plate heat exchangers on combination boilers, which can act as a filter, become blocked and effect the manufacture of residential hot water. On older heating systems, especially those that once incorporated a feed & expansion tank then sludge will be present as well as other contaminants such as flux.