Every winter, the internet fills up with “energy-saving tips” that claim to slash your heating bills — but not all of them hold up. Some are half-true, some are outdated, and a few could even make your home less efficient.
At GH Heating, we work with boilers and heating systems across Colchester and Essex every day. We’ve seen which habits help and which ones quietly waste gas, money, and comfort. Here are a few of the biggest heating myths — and what really works instead.
1) “Turning the Heating Off Saves Money” — Not Always
It’s true that switching your heating off stops energy use, but letting your home drop to a very low temperature can backfire. When you reheat everything — walls, floors, furniture — your boiler has to work harder and run longer to get the house comfortable again.
✅ Better approach: keep your thermostat at a consistent, moderate temperature. Use your programmer or smart thermostat to reduce heating when you’re out, but don’t let the house freeze. Smart heating controls can manage this automatically for you.
2) “Bigger Boilers Heat Homes Faster” — False
A bigger boiler isn’t automatically better. Boilers are sized to match your property’s heat demand. Oversized boilers short-cycle — turning on and off too often — which wastes energy and shortens lifespan. Undersized boilers run constantly and struggle to keep up.
✅ Better approach: if you’re not sure your system is sized correctly, have a Gas Safe engineer check it during a service. They can tell you if your current boiler is performing efficiently or if an upgrade would save energy.
3) “Keeping Radiators on Low All Day Is Cheaper” — It Depends
Running radiators all day on low can work in some well-insulated homes, but for most households it means wasting heat in empty rooms.
✅ Better approach: fit thermostatic radiator valves (TRVs) or zoning controls so each room can heat only when needed. If a few radiators never get fully hot, check for trapped air — our guide on why radiators are cold explains how to fix that safely.
4) “Bleeding Radiators Wastes Water” — Myth
Bleeding radiators releases air, not water. That air prevents hot water from circulating properly, leaving cold patches at the top.
✅ Better approach: bleed radiators once a year, ideally before winter. If the water that comes out is dark or sludgy, it may be time for a power flush to clear the system and restore full efficiency.
5) “You Don’t Need to Service a New Boiler Yet” — Dangerous Myth
Skipping the first service on a new boiler might void the manufacturer’s warranty. Even brand-new systems can develop early issues like debris in filters or incorrect pressure settings.
✅ Better approach: book an annual boiler service with a Gas Safe registered engineer. GH Heating’s Boiler Care Plans include your yearly service automatically — it’s about protecting your home and the people in it.
6) “Turning Down the Thermostat by 1°C Doesn’t Make a Difference” — It Really Does
It might not feel like much, but dropping your thermostat by just one degree can save around 5–10 % on heating costs. Most people won’t even notice the change in comfort, only on their bill.
✅ Better approach: try reducing your target temperature gradually and see what feels right. Pair that with regular servicing and balanced radiators for maximum efficiency.
7) “Boiler Pressure Doesn’t Matter” — Myth
Incorrect boiler pressure can make your heating less efficient or cause it to shut down completely.
✅ Better approach: check your pressure gauge a few times through winter — ideally 1–1.5 bar when the system is cold. If it’s repeatedly low, our Boiler Breakdown Guide explains what to check safely before calling an engineer.
Small Habits That Make the Biggest Difference
You don’t need complicated hacks or risky tricks to save money on heating. A few simple habits have the biggest impact:
- Keep up with annual servicing.
- Bleed radiators once a year.
- Use smart or programmable controls.
- Lower the thermostat slightly.
- Keep vents and radiators clear of furniture.
These basics keep your boiler running smoothly, reduce breakdowns, and make every unit of energy go further.
How GH Heating Can Help
We’re here to make sure your system stays safe, efficient, and cost-effective through winter. Our local engineers provide:
- Annual servicing and safety checks
- Boiler Care Plans with monthly payments and priority support
- Power flushing to restore radiator performance
- Smart heating control installation for effortless energy management
All work is carried out by Gas Safe and OFTEC registered engineers, ensuring your home stays warm and compliant all year round.
Final Thoughts
There’s plenty of advice out there about saving money on heating — but the simplest truth is this: regular maintenance and good habits beat quick fixes every time.
If you want to stay warm and worry-free this winter, we’re here to help.
👉 Contact GH Heating today to book your annual service or join one of our monthly Care Plans. Enjoy reliable warmth, lower bills, and peace of mind all winter long.