Energy-saving gadgets UK: what is actually worth buying?
Energy-saving gadgets are a messy category. Some are genuinely useful, some are only useful in narrow situations, and some distract from the bigger work of insulation, heating control and behaviour. The trick is buying...
Energy-saving gadgets are a messy category. Some are genuinely useful, some are only useful in narrow situations, and some distract from the bigger work of insulation, heating control and behaviour. The trick is buying tools that reveal or reduce real energy waste.
Short answer: the best low-cost products are usually LEDs (light-emitting diodes), draught-proofing, pipe insulation, radiator reflectors in specific cases, smart plugs with energy monitoring and better heating controls. Avoid miracle devices that promise large savings without explaining the mechanism.
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Use this article with our sustainable tech guide, energy price cap explainer, home insulation guide and smart thermostat guide.
Best buys by use case
| Use case | Products to compare | Best for |
|---|---|---|
| Finding appliance waste | TP-Link Tapo P110, Meross energy-monitoring smart plugs | Checking fridges, dehumidifiers, desk setups and standby loads. |
| Lighting | Warm white LED bayonet bulbs, LED GU10 bulbs | Replacing halogen or old incandescent lighting. |
| Draughts | Door brush seals, window draught seals | Obvious gaps around doors, windows and letterboxes. |
| Heating pipe loss | Climaflex pipe insulation, 15mm and 22mm pipe lagging | Exposed pipes in lofts, garages, cupboards and unheated spaces. |
| Radiator wall losses | Radiator reflector foil | Radiators on external walls, especially in older homes. |
| Heat mapping | Infrared thermometers | Spot-checking cold surfaces, draughty edges and radiator balance. |
What to buy first
Start with the thing that gives you evidence. If you do not know which appliances are wasteful, an energy-monitoring plug can help. If you can feel cold air around a door, draught-proofing is a better first purchase than another app. If you still have halogens, LEDs are usually an obvious upgrade.
What not to buy
Be careful with devices claiming dramatic whole-house savings by "stabilising" electricity or reducing consumption without changing any load. For household consumers, the strongest savings usually come from using less energy, reducing heat loss, shifting demand to cheaper periods where tariffs allow, and improving heating controls.
Smart plugs: useful, but not magic
Energy-monitoring smart plugs are useful for measurement. They are particularly good for appliances that run intermittently, home office equipment, dehumidifiers, electric heaters and older entertainment setups. They are less useful for hard-wired appliances, whole-home heating systems or anything that cannot be safely run through a plug.
Heating controls matter more than most gadgets
If heating is the biggest part of your bill, smart plugs will only go so far. Review thermostats, schedules, radiator valves and room temperatures. Our smart thermostat guide explains when a full heating-control upgrade is worth considering.