
Dreo Smart Whole Room Heater 714S review: running cost and verdict
A 2 kW ceramic heater with 3D oscillation (up and down as well as side to side) and a long-range airflow to push warm air around a bigger room, with Wi-Fi app control, a 12-hour timer and a quiet 34 dB.
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The good
- 3D oscillation spreads the heat around the room
- 900–2,000 W, 3 heat and 3 fan settings
- Wi-Fi app and 12-hour timer
- Quiet: about 34 dB
The not so good
- Fan heater: best for a few hours at a time
- App setup needs Wi-Fi
How much does it cost to run?
One hour at full power (2,000 W)
Low setting: 23.7p an hour
A month of typical use
2 hours a day at full power
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 Dreo Smart Whole Room Heater 714S cheaper or dearer is its size and its controls: timer, wi-fi. More in which electric heater is cheapest to run.
Specifications
| Type | Fan heater |
|---|---|
| Power | 2,000 W (low setting 900 W) |
| Room size | about 15 m² (161 sq ft) |
| Controls | Timer, Wi-Fi |
| Oscillation | Yes |
| Tip-over protection | Not stated |
| Splash protection | No |
| Noise | about 34 dB (per listing) |
| Amazon ASIN | B0FPXGX4CX |
| Source of specs | Amazon.co.uk listing (DR-HSH034S, 900–2,000 W, 15–25 m²) |
Frequently asked questions
How much does the Dreo Smart Whole Room Heater 714S 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 (2 hours a day at full power) comes to around £31.58 a month.
What size room will the Dreo Smart Whole Room Heater 714S heat?
About 15 m² (161 sq ft) in a reasonably insulated home. For a draughty room or an old house, go one size up.
Can I leave the Dreo Smart Whole Room Heater 714S on overnight?
Fan heaters are best for short bursts. Use the timer, never cover it and switch it off when you go to sleep.
Can I use the Dreo Smart Whole Room Heater 714S in a bathroom?
No: it has no splash protection. In a bathroom use only heaters rated IP24 or higher, fitted outside the wet zones.
Alternatives

Dreo Atom 316 Ceramic Heater 1500W
- Fan heater · 1,500 W
- One of the most-reviewed ceramic heaters on Amazon UK: quiet (34 dB), digital thermostat, 12-hour timer and remote. Warms a bedroom or home office in minutes.
- Costs 39.5p an hour at full power.
Dreo 2000W Oscillating Ceramic Heater
- Fan heater · 2,000 W
- 2 kW with 70° oscillation to spread the heat, a thermostat, 12-hour timer and remote. Enough to take the chill off a living room quickly.
- Costs 52.6p an hour at full power.

Dreo Solaris Slim H3S Smart Heater 2000W
- Fan heater · 2,000 W
- Slim 2 kW heater you can switch on from your phone before you get home, with thermostat, oscillation, timer and remote.
- Costs 52.6p an hour at full power.
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