Boilers often have a default temperature that is sent to radiators which is set higher than needed. This reduces the efficiency of your boiler. Depending on the type of boiler you have, its efficiency can be improved by locating the ‘flow temperature’ dial/setting on the boiler and adjusting it to a lower temperature of 60 degrees Celsius. Reducing your boiler flow temperature could save you approximately £100 per year.
Reducing your boiler’s flow temperature is not the same as reducing the temperature on your thermostat and won’t reduce the temperature of your home but may increase the time it takes for your home to reach the target temperature on your thermostat. People over 65 or with pre-existing health conditions may want to set a slightly higher flow temperature before lowering it further to ensure your home warms up quickly enough.