I havent had my boiler serviced for a couple of years (its only a couple of years old) It seems to not be heating the hot water tank as well as it used to even if I leave it on for longer. Theormostats on both boiler and cylinder are high.
Can not having your boiler serviced affect its performance, or is servicing just to ensure emissions dont get blocked.
Can not having your boiler serviced affect its performance, or is servicing just to ensure emissions dont get blocked.