Households across the UK could slash their annual energy bills by a simple and often overlooked adjustment to their boiler, according to leading supplier Octopus Energy.
The firm advises that lowering your boiler's flow temperature setting may reduce gas consumption significantly, potentially saving consumers up to £65 per year. This guidance comes at a critical time as many continue to face high energy costs.
What is Boiler Flow Temperature?
For those unfamiliar with the term, the flow temperature is the heat level of the water as it leaves your boiler to circulate through your radiators. It is a separate setting from your room thermostat.
Octopus Energy explains that this control is typically set too high by default, often between 70 and 80 degrees Celsius. Reducing this temperature means your home can still feel just as warm, but your boiler operates more efficiently, using less gas.
Important Considerations and Expert Advice
It is crucial to note that this advice primarily applies to combi boilers. If you have a conventional boiler system with a hot water cylinder, this tip may not be suitable.
According to consumer group Which?, the exact savings will depend on your home's specific characteristics. A spokesperson stated: "Reducing flow temperature means your radiators won't be as hot to the touch and it'll take longer for your rooms to get up to temperature."
For well-insulated homes, the benefits are clear: improved boiler efficiency and lower energy use for the same comfort level. However, in properties with poor insulation or undersized radiators, the heating system might struggle with a lower flow temperature.
If you are unsure, Which? recommends booking a boiler service. A qualified engineer can provide tailored advice on the optimal flow temperature for your home.
Further Help Available Online
For a quick assessment, Nesta, the organisation behind the Money Saving Boiler Challenge, offers a free online tool. It takes just a few minutes to complete and provides personalised recommendations for your boiler settings.
This simple adjustment represents a practical step millions can take to reduce their energy expenditure immediately, putting more money back into their pockets during the costly winter months.
