Set your hot water cylinder thermostat to 60°C
Water stored hotter than 60°C wastes energy and raises the risk of scalding, while 60°C is hot enough to control bacteria.
What to do
- Find the thermostat dial on your hot water cylinder.
- Set it to 60°C, no lower, to keep the water safe.
- Check taps still deliver hot enough water for washing.
Useful tools and guides
Related tips
Insulate your hot water cylinder
An uninsulated cylinder loses heat all day. A fitted jacket keeps stored water hot for longer.
Reduce your combi boiler's flow temperature
Combi boilers run in their more efficient condensing mode when the water they send to radiators is cooler.
Turn your thermostat down by 1°C
Lowering the room temperature by a single degree reduces how hard your heating works, and most people barely notice the difference.
Set heating timers and schedules
Heating an empty home wastes energy. A schedule makes the heating come on when you need it and go off when you don't.
