Using Your Boiler Efficiently
With energy costs on the rise, getting the most from your boiler and central heating has never mattered more. This guide walks through simple, practical steps — from how you schedule your heating to keeping your radiators in good order — that can help you save both energy and money.
Think twice about leaving your heating on all the time
Energy experts are divided on this. One view is that leaving the boiler on low continuously is more efficient, avoiding repetitive heating cycles; the other stresses that modern homes are well-insulated, which helps reduce heat loss when the heating isn't switched on. The best approach is to match your heating schedule to your household's patterns — morning and evening heating if you're out during the day, or continuous running if the home is occupied. If you do run it constantly, keep the boiler setting turned to minimum and the radiator valves turned up to the max.
Replace your boiler and heating controls
Upgrading your heating controls can deliver energy improvements even without replacing the boiler itself. Options range from basic timers up to more sophisticated systems such as the Worcester Bosch EasyControl, which react to changes in the outdoor temperature to run your heating more intelligently.
Get the most from your controls
Set your boiler heat controls correctly so it runs in efficient condensing mode, and program heating schedules to match your lifestyle. Try reducing your thermostat to 18 degrees and then turning it up by one degree each day to find your comfortable minimum. Use thermostatic radiator valves (TRVs) for room-by-room temperature control, and help your radiators work efficiently by moving away furniture, curtains or clutter.
Bleed your radiators
Air bubbles trapped inside radiators stop hot water circulating properly, causing uneven heating and putting strain on the system. A tell-tale sign is a radiator that's cool at the top and hot at the bottom. Bleeding them with a radiator key is a manageable DIY job that restores even heat and helps your system run efficiently.
Book a system flush
Over time, sludge and debris build up inside your heating system, reducing efficiency and risking damage. Warning signs include excessive noise from the boiler or pump, frequent boiler cut-outs that require a reset, and cold or leaky radiators. A professional power flush clears the build-up and restores performance.
