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Ideal Home tested Dreo’s Smart Whole Room Heater 720S, a 2,000W ceramic heater with settings for focused warmth or 360-degree heat distribution. In the reviewer’s 10-day home test, it raised an 18-square-metre living room’s temperature by 4°C in 10 minutes; results varied in a larger open-plan space.
Ideal Home has tested Dreo’s Smart Whole Room Heater 720S, a 2,000W electric heater that switches between directing warmth forward and distributing heat around a room. The review found that it warmed an 18-square-metre living room by 4°C in 10 minutes, while its performance was slower in a larger kitchen-diner, making room size and placement relevant to buyers considering the £119.99 appliance.
The 720S is a ceramic fan heater measuring 22 by 30 by 22 centimetres and weighing 3.1 kilograms, according to Ideal Home’s specifications. It is rated for rooms up to 25 square metres. A button changes the airflow from focused heating through the front grille to a whole-room mode: the top section rises by about four centimetres and sends air in multiple directions. The product does not oscillate.
Ideal Home’s reviewer, Renovation Editor Sarah Handley, tested the heater for 10 days in a 1970s three-bedroom home, using it in the living room and kitchen-diner. In the 18-square-metre living room, the reported temperature rose by 4°C after 10 minutes in whole-room mode. In the 22-square-metre open-plan kitchen-diner, it rose by 2°C after 20 minutes. These are results from one home test, not a guarantee of performance in other rooms.
Users can select three power levels—1,100W, 1,400W and 2,000W—or choose Eco mode and set a target temperature between 5°C and 35°C. The heater can be operated using its control panel, a remote or the Dreo app, and the review says it also works with Google Home and Alexa. It has a fan-only setting and adjustable ambient lighting through the app. Dreo lists eight safety features, including tip-over and overheat protection, a child lock and cool-touch housing.
Room Size Shapes Heating Results
The review’s measurements show why a heater’s room-wide rating should be read alongside the conditions under which it was tested. The 720S produced a faster temperature rise in the reviewer’s 18-square-metre living room than in the 22-square-metre open-plan kitchen-diner. The results offer a practical point of comparison, but they do not establish how quickly the heater will warm a different home, where insulation, layout and starting temperature may differ.
The two airflow modes may also suit different situations: focused heat directs warmth toward a person, while the raised, multi-directional setting is designed to spread warmth through the room. Its smart controls and portable 3.1-kilogram build add flexibility. However, the reviewer noted that whole-room heating worked best when the unit was positioned nearer the centre of the room, while its power cable still had to reach a wall socket. That limits where it can be placed and calls for care around the trailing cable.
The listed £119.99 price and estimated running cost may help shoppers compare options, but the running-cost figure depends on an explicitly stated energy-price basis. Ideal Home gives an estimate of 53p per hour based on the October 2026 energy price cap; actual costs can vary with electricity tariffs and the selected power setting.
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A Ten-Day Test at Home
The report is a product review, not an announcement of a new technical standard or an independent laboratory assessment. Ideal Home says the 720S launched at the end of September and describes testing it in two rooms of one home for 10 days. The reviewer says she covers home energy content and has tested other heating products, but the reported temperature changes remain observations from this specific test.
The review describes setup as simple: the unit requires no assembly, beyond putting batteries in the remote, and can be plugged in after being positioned. App control requires downloading Dreo’s app and creating an account. For whole-room mode, the reviewer moved the heater away from the wall and placed it on a round console table, reporting better benefit from a more central position. Because the device must remain connected to a socket, moving it centrally can leave a cable across the room.
“the heater managed to increase the temperature in my 18m2 living room by 4°C in just 10 minutes.”
— Ideal Home reviewer Sarah Handley
Limits of the Home Test
The report gives no measurements from additional homes or controlled comparisons with other heaters. It does not specify the starting temperature, outdoor conditions, thermostat placement or how long each setting was maintained beyond the stated measurement intervals. The two temperature rises should therefore be treated as single-home test observations, not typical results or proof that the heater will warm every room up to its 25-square-metre rating at the same speed.
The source lists the heater’s running cost as 53p per hour based on the October 2026 energy price cap, but does not provide a separate breakdown by power level or detail how that estimate was calculated. The review also does not establish long-term durability, repair costs or energy savings in comparison with a home’s existing heating system. Those points remain unconfirmed by the material provided.
Check Price and Room Fit
Readers considering the 720S can compare its £119.99 recommended retail price, stated room-size suitability and controls with current retailer listings, since prices and availability can change. They should also check the heater’s instructions for safe positioning and use, particularly around children, pets and the cable. The source does not give a date for any follow-up testing, and no further product announcement is reported.
For a more useful comparison, future testing would need to report results across different room sizes and home conditions, along with consistent energy-use measurements. Until then, the published figures describe how this unit performed in Handley’s two rooms rather than predicting results elsewhere.
Key Questions
What does the Dreo Smart Whole Room Heater 720S do?
It is a 2,000W ceramic fan heater that can direct heat through its front grille or use a raised top section to distribute airflow around the room. It also has Eco and fan-only modes.
How well did it heat the rooms in the review?
Ideal Home reported a 4°C rise in 10 minutes in an 18-square-metre living room and a 2°C rise in 20 minutes in a 22-square-metre open-plan kitchen-diner. Those results came from one home test and may not match performance elsewhere.
What room size is the 720S rated for?
The product specifications in the review list it as suitable for rooms of up to 25 square metres. That rating does not mean every room of that size will heat at the same speed.
Can the heater be controlled remotely?
Yes. The review says it can be controlled with the Dreo app, included remote or onboard controls, and works with Google Home and Alexa. App use requires downloading the app and setting up an account.
What price and running cost does the review give?
Ideal Home lists a £119.99 recommended retail price and an estimated cost of 53p per hour, based on the October 2026 energy price cap. Actual running costs depend on the electricity tariff and heater setting.
Source: idealhome.co.uk
