Comparison
RapidHeat vs LumiHeat: which plug-in heater?
The short answer
Both are compact plug-in heaters marketed to UK homes. Here's what we can confirm about RapidHeat, and exactly what to check before buying LumiHeat or any similar heater.
Written and checked by the RapidHeat UK team · Last updated October 2026 · how we work out running costs
Key takeaways
- Compact plug-in heaters often look similar — compare seller, warranty and controls, not the name.
- Same wattage means the same cost per hour; a thermostat lowers real use.
- RapidHeat is sold directly by RapidHeat UK with free tracked delivery and a 30-day guarantee.
Side-by-side checklist
| What to check | RapidHeat | LumiHeat |
|---|---|---|
| Heating type | PTC ceramic | Check the listing |
| Room size | Up to about 12 m² | Check the listing |
| Thermostat and timer | Yes, both, plus remote | Check the listing |
| Overheat shut-off | Yes | Check the listing |
| UK seller and support | RapidHeat UK, UK support email | Ask who ships and who handles returns |
| Returns | 30-day money-back guarantee | Check the policy |
| Warranty | 12 months | Check the policy |
| Delivery | Free tracked UK delivery | Check where it ships from |
We haven't independently tested LumiHeat, so we don't publish claims about its performance. Ask its seller the same questions above before you buy.
Which should you choose?
- Want a UK seller with a written guarantee and warranty? RapidHeat ticks those boxes.
- Heating a big or draughty room? Neither compact heater is ideal — read best plug-in heaters.
- Worried about costs? Read running costs first.
RapidHeat ceramic heater
4.8/5 · 1,247 UK customers£49.95· £89.91 for two · £110.89 for three (about £36.96 each)
- Thermostat, timer and remote
- Warm room in about 5 minutes
- Free tracked UK delivery
- 30-day money-back guarantee
Questions people ask
- Is RapidHeat the same as LumiHeat?
- They are sold by different sellers under different names. Many compact plug-in ceramic heaters look alike, so compare the specification, seller, returns and warranty rather than the name.
- Which is cheaper to run, RapidHeat or LumiHeat?
- Running cost depends on wattage, hours and your unit rate, not the brand. Two heaters of the same power cost the same per hour at full power; a thermostat is what reduces real use.
- Who wrote this comparison?
- RapidHeat UK publishes this page, so we have an interest. We only state facts we can check about our own product and list the questions to ask any other seller.
RapidHeat ceramic heater
4.8/5 · 1,247 UK customers£49.95· £89.91 for two · £110.89 for three (about £36.96 each)
- Thermostat, timer and remote
- Warm room in about 5 minutes
- Free tracked UK delivery
- 30-day money-back guarantee
Perfect for my cold office
I have a small office with a door that gets really cold because the building management keeps the winter temperature far too low for comfort. I plugged this into the socket above my desk and now I am warm without anyone even knowing it is there. I love it.
Great in the bathroom
We use it to take the chill off the bathroom before the kids' bath time. Warms up fast and the timer is handy. Four stars only because I wish the display were a little dimmer at night.
Worth being straight about: RapidHeat is built for rooms up to about 12 m². It is not a replacement for central heating and it will not transform an open-plan lounge or an uninsulated garage. If it is not right for your room, send it back within 30 days.
Choose RapidHeat direct from the UK seller
Order RapidHeat today with free tracked UK delivery and a 30-day money-back guarantee.
Sold direct by RapidHeat UK. Secure checkout, free tracked UK delivery.