Millions of UK households could immediately reduce their energy costs by up to 10% through a simple adjustment most homeowners never consider. With energy prices remaining stubbornly high, this little-known boiler setting could save the average family approximately £112 annually.
The Secret Lies in Your Flow Temperature
Most modern combi boilers operate at unnecessarily high temperatures, burning more gas than required to heat your home effectively. By adjusting what's known as the 'flow temperature', households can achieve significant savings without sacrificing comfort.
Nesta, the innovation charity behind this revelation, confirms that approximately 12 million homes with combi boilers could benefit from this adjustment immediately.
How to Make the Change
Lowering your flow temperature is simpler than you might think:
- Locate the central heating dial on your combi boiler
- Reduce the temperature to between 55-60°C
- Allow 24 hours for your home to adjust to the new setting
- Make minor adjustments if certain rooms feel too cool
Why This Works So Effectively
Combi boilers typically leave the factory set at high temperatures around 75-80°C. This not only wastes energy but reduces boiler efficiency. By operating at lower temperatures, your boiler runs more efficiently and your radiators distribute heat more consistently throughout your home.
Important note: This adjustment applies specifically to combi boilers used for central heating, not hot water settings which should remain higher for safety reasons.
Additional Winter Savings Tips
Combine this boiler adjustment with other energy-saving measures for maximum impact:
- Install thermostatic radiator valves for better room control
- Use a smart thermostat to programme heating around your schedule
- Bleed radiators regularly to maintain efficiency
- Consider radiator reflector panels behind thinner external walls
With winter approaching and energy costs still biting household budgets, this simple five-minute adjustment could provide welcome relief without requiring expensive upgrades or lifestyle changes.
