Yes, you need to have your Grant hot water cylinder serviced on an annual basis and the Benchmark book (supplied with your cylinder) should be filled out as evidence that the service has been completed. Your cylinder should be serviced by a competent person in accordance with the installation and servicing instructions. If your original installing engineer is unable to service your cylinder, you can either find an alternative service engineer via our online search or you can contact the Grant UK ServicePlan Team.
Secondary hot water returns are generally used in domestic hot water applications where the point of usage (e.g. taps) is a distance away from the hot water cylinder. Known as secondary circulation, it is used to remove the need to draw off a large quantity of cool water left in the pipe run before hot water reaches the tap.
Yes. When you first fill a basin or bath with hot water, it may sometimes appear a milky in colour which will be caused by a very tiny air bubbles in the water – these will clear very quickly to leave you with your clear water.
The dual thermostat fitted to a QR hot water cylinder should be set to between 50˚C and 55˚C when installed with a Grant Aerona³ air source heat pump.
Alternatively you can speak to a member of our team - Subject to Operating Times