The Quiet Revolution: Why Your Gas Boiler Should Be Running Colder October 30, 2025 The Quiet Revolution: Why Your Gas Boiler Should Be Running Colder (and How We Can Help)Maximise Your Home’s Efficiency in Horsham & Adur Without Buying a New Boiler!Did you know your high-efficiency gas boiler is probably running inefficiently? For homeowners across the Horsham District and Adur District, the single most effective way to cut your heating bills this winter might be as simple as adjusting a dial. It's called low flow temperature operation, and industry experts—and the government—are making it the new standard.Why 'Colder' Means 'More Efficient'Your boiler is designed to work as a condensing boiler. To achieve its maximum efficiency (up to 98%), it needs to enter a specific "condensing mode".This mode is only activated when the water returning to the boiler is cool enough (typically below 55 °C). If the flow temperature is set too high, the boiler never condenses the water vapour in the flue gases, and you lose that crucial efficiency gain. This means you could be losing up to 10% of your efficiency every day, all winter long.The New Mandate: Regulating System EfficiencyCurrent regulatory proposals acknowledge that many existing installations fall short of achieving this optimal state. The policy focus is shifting from regulating the boiler itself to mandating the dynamic operational efficiency of the entire heating system.Upcoming updates will require all gas boiler installers to undertake mandatory training in low-temperature heating system design. Furthermore, new combi boilers will be required to modulate their output down to at least 15% of their maximum capacity to match the often low heat demand of a well-insulated home, avoiding wasteful 'short-cycling'.This is a clear signal: running your boiler at a low flow temperature is the future of home heating efficiency.Prime Boiler Care’s £50 Optimisation ServiceYou don't need to wait for a new mandate to start saving!As your local experts, Prime Boiler Care specialises in optimising existing systems in the Horsham and Adur areas. We offer a simple, high-value Low Flow Temperature Optimisation Service that includes: * Flow Temperature Adjustment: Setting your boiler to the optimal flow temperature to ensure it condenses consistently. * System Check: Ensuring your system is correctly balanced and your controls are communicating effectively with the boiler. * Expert Advice: Guidance on maximising comfort while running your radiators at a lower, sustained heat.The result? You immediately start saving energy and reducing your carbon footprint without the cost and disruption of a complete replacement. Get the maximum efficiency from the appliance you already own!Book Your Winter Efficiency Tune-Up Today! Contact Prime Boiler Care to ensure your system operates correctly for maximum comfort and minimal energy bills this winter.