Getting the most from a new boiler: everyday heating habits for UK households (guide 2026)

Guide by ApplyFreeBoiler.uk (Reliant Energy Solutions Ltd), a heating and insulation installer in Bury, Greater Manchester. We are not the government, Ofgem or an energy supplier.

A new boiler is usually more efficient than an old one, but everyday habits still make a difference to comfort and bills. This page collects simple tips households often find useful after an upgrade, including ECO4 installs. It is general information from ApplyFreeBoiler.uk, a heating and insulation installer in Bury. Always follow the manufacturer's instructions for your boiler and controls. This page does not guarantee funding.

1. Set the timer around your day

Programme the heating to come on shortly before you get up or come home, and to go off a little before you leave or go to bed. Homes with good insulation hold warmth for longer.

2. Pick a steady thermostat setting

Choose the lowest room temperature you are comfortable with and leave it there, rather than turning it right up when you feel cold. Vulnerable or older people may need it warmer, so take health advice into account.

3. Use radiator valves room by room

Thermostatic radiator valves let you keep spare rooms cooler and living rooms warmer. Keep doors closed between warm and cool rooms.

4. Keep radiators clear

Long curtains, sofas and drying clothes in front of radiators block heat. Tuck curtains behind or above radiators where you can.

5. Hot water

With a combi boiler, hot water is heated on demand, so shorter showers save gas. With a cylinder, set the hot water timer to match when you actually use it.

6. Draughts and curtains

Close curtains at dusk to keep heat in, and open them on sunny days to let warmth in. Simple draught strips on doors and windows help too.

7. Look after the boiler

Book a yearly service with a Gas Safe registered engineer, keep an eye on the pressure gauge and note any fault codes before calling for help.

8. Check funding and local figures

See ECO measures by council on ApplyFreeBoiler.uk, built from DESNZ Household Energy Efficiency statistics, to see how many ECO measures have been installed in your local authority area. Use the ApplyFreeBoiler.uk eligibility check to see whether an ECO4 heating or insulation pathway may be available for your home in England, Scotland or Wales. ECO4 is due to close on 31 December 2026.