The first truly cold evening always sneaks up. One week, a cracked window still feels fine. The next, you’re standing in the hallway, staring at the thermostat, doing mental sums you promised yourself you’d never need. Do you turn the heating on and accept the bill, or pull on another layer and pretend fingerless gloves are a work-from-home choice?

All over the UK, households are already scrolling through energy-saving tips, hunting for discounts, and sharing tricks that might shave a few pounds off the next direct debit.
This winter, that search for small, practical fixes has found a new focus – and it’s coming straight from the supermarket middle aisle.
Lidl’s Upcoming Winter Gadget Is Turning Heads
Lidl is quietly preparing to release a winter gadget next week that’s already buzzing through money-saving forums. One detail has really caught attention: it’s been publicly backed by Martin Lewis.
For millions of households worried about energy bills, that endorsement matters. He’s long warned against useless “energy-saving” gimmicks, so when he signals something might actually help, people take notice.
This time, the excitement isn’t about a complex smart-home system or an expensive boiler upgrade. It centres on a simple plug-in heater designed to deliver warmth exactly where you need it, without sending energy costs spiralling.
From early information shared by bargain hunters, the device is expected to be a compact electric heater – small enough to sit by a sofa or under a desk – with sensible safety features and a moderate wattage.
These are the kinds of heaters Martin Lewis has repeatedly described as cost-effective when used correctly: warming the person, not the entire house. Last winter, UK energy forums were full of stories from families who relied on one portable heater in the room they actually used, cutting gas consumption and saving tens of pounds each month.
One parent in Leeds shared how she used a small heater during her children’s bedtime routine while keeping the central heating off most evenings. She said the saving on her bill “felt like a pay rise”.
The reason this approach works is straightforward. Central heating warms every room, even the ones you barely enter. A targeted heater concentrates warmth in the few square metres where you’re actually sitting, exactly where the cold is felt most.
Why Targeted Heating Makes Sense Right Now
With electricity prices still high, an inefficient heater can quickly become a money pit. The models Martin Lewis tends to highlight are lower-wattage and come with clear guidance on cost per hour. Used for a couple of hours in the evening instead of running the whole system, they can work out cheaper, especially in smaller or well-insulated homes.
Lidl’s move fits neatly into this way of thinking: not “heat everything”, but “heat smart”, using a tool that works with everyday life rather than against it.
How to Use Lidl’s Heater the Smart Way
The key is to treat the heater as a zone warmer, not a replacement for your boiler. Place it close to where you actually spend time – next to the sofa, beneath your desk, or beside your favourite chair.
Let it take the chill out of that one area, then lower your central heating slightly or delay when it switches on. Many people found last winter they could push back main heating by two or three hours simply by using a small plug-in heater nearby.
Used in short, deliberate bursts, the heater becomes a useful tool, not a constant drain.
We’ve all had that moment of turning every radiator on “just for a bit” and forgetting about it until midnight. This kind of Lidl heater is designed to disrupt that habit.
Instead of heating empty hallways and spare rooms, you warm the small bubble you’re actually living in. That might be one end of the living room where everyone gathers, or the compact home office squeezed between a cupboard and a window.
The benefit isn’t only financial. Many people say they feel more comfortable when warmth is focused around their hands and legs, rather than drifting uselessly toward the ceiling.
Common Mistakes That Cancel the Savings
Some habits can wipe out any benefit. Running a high-wattage heater at full power in a draughty, open-plan space is one. Leaving it on in an empty room “just in case” is another. Almost everyone slips into these patterns occasionally, and the bill always reflects it.
Used thoughtfully, though, Lidl’s gadget can fit into a wider winter plan that Martin Lewis has promoted for years: blankets, hot water bottles, extra layers indoors, and closed doors to keep heat contained. None of it is glamorous, but it works.
As one energy expert neatly summed it up:
“Your bill doesn’t care how warm the hallway is. It only cares how many kilowatt hours you’ve used.”
That’s why Lidl’s timing feels so sharp. This heater arrives just as forecasts point to another tough winter for household finances.
- Keep it close to your body, not across the room
- Use it only when you’re sitting still
- Combine it with warm clothes and blankets, not instead of them
- Close doors to stop heat escaping
- Check the wattage and estimate the cost per hour
A Small Heater Reflecting a Bigger Winter Reality
This Lidl release is more than another middle-aisle curiosity. It reflects where many households are right now: scanning budget supermarkets for ways to stay warm without that familiar knot in the stomach when the bill lands.
The Martin Lewis endorsement gives people confidence to see it as a practical aid, not a gimmick. It isn’t magic, but it can help families claw back a little breathing space, one carefully used kilowatt at a time.
Some will plug it in next week and feel instant relief. Others will keep doing the maths, weighing every choice against standing charges they never asked for. Most households sit somewhere in between, combining supermarket gadgets, trusted advice, and a quiet hope that this winter won’t be harder than the last.
- Targeted heating over whole-house heating: Warming only the room you’re in reduces wasted energy and can lower monthly costs
- Smart placement and timing: Keeping the heater close and using it for limited hours maximises comfort for minimal spend
- Pair with simple habits: Layers, blankets, closed doors, and draught-proofing turn a small device into a broader winter-saving strategy
