Devola DVM20B Slim Panel Heater 2kW review: running cost and verdict
Slim 2 kW panel heater with 24-hour and 7-day timers, IP24 and tip-over protection, for rooms up to 22 m².
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The good
- 24-hour and 7-day timers
- IP24 splash protection
- Tip-over and overheat protection
The not so good
- No Wi-Fi
- Mixed reviews on durability
How much does it cost to run?
One hour at full power (2,000 W)
at 26.32p/kWh
A month of typical use
5 hours a day on thermostat
Ofgem price cap, Direct Debit, national average (1 October to 31 December 2026). Watt for watt, every electric heater costs the same to run. What makes the Devola DVM20B Slim Panel Heater 2kW cheaper or dearer is its size and its controls: digital thermostat, weekly schedule. More in which electric heater is cheapest to run.
Specifications
| Type | Panel heater |
|---|---|
| Power | 2,000 W |
| Room size | about 20 m² (215 sq ft) |
| Controls | Digital thermostat, weekly schedule |
| Oscillation | No |
| Tip-over protection | Yes |
| Splash protection | IP24 |
| Noise | Silent (no fan) |
| Amazon ASIN | B08XJJ7FMH |
| Source of specs | Amazon.co.uk listing (title and bullets) |
Frequently asked questions
How much does the Devola DVM20B Slim Panel Heater 2kW cost to run?
At full power it uses 2.00 kWh an hour: about 52.6p at the Ofgem price cap (26.32p/kWh). Typical use (5 hours a day on thermostat) comes to around £47.38 a month.
What size room will the Devola DVM20B Slim Panel Heater 2kW heat?
About 20 m² (215 sq ft) in a reasonably insulated home. For a draughty room or an old house, go one size up.
Can I leave the Devola DVM20B Slim Panel Heater 2kW on overnight?
It is designed for long periods: use the thermostat on a low setting, keep it away from curtains and bedding, and plug it straight into the wall.
Can I use the Devola DVM20B Slim Panel Heater 2kW in a bathroom?
It has IP24 splash protection, so it can be fitted in a bathroom outside the zones closest to the bath and shower, following the manual and the wiring regulations.
Alternatives
Devola DVPW2500WH Smart Glass Panel Heater 2500W
- Panel heater · 2,500 W
- The 2.5 kW version of the Devola smart glass panel: Wi-Fi app and voice control, a thermostat accurate to about half a degree and a 7-day timer, for living rooms up to about 25–30 m².
- Costs 65.8p an hour at full power.
Devola DVPW1500WH Smart Glass Panel Heater 1500W
- Panel heater · 1,500 W
- Wi-Fi glass panel heater, wall-mounted or freestanding, with 7-day programming, thermostat and IP24 splash protection. Heats rooms up to 20 m² only when you need it.
- Costs 39.5p an hour at full power.
Devola Smart Glass Panel Heater 2000W
- Panel heater · 2,000 W
- The 2 kW version of Devola's Wi-Fi glass panel heater, for larger rooms, with app, Alexa and weekly programming.
- Costs 52.6p an hour at full power.
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