Harmoni Duero Touch Electric Radiators
Key Features of the Harmoni Duero
10-year warranty | Flame-proof aluminium body |
Ceramic Core with built in thermostatic control (±0.25) | ‘Open window’ technology |
Modern design | TFT Display For 2021 Models - For a visibly sharper and better quality image |
Lot 20 compliant, IP24 | 3 sizes available |
Design

When searching for a radiator with a simply beautiful aesthetic there is no need to look any further than the Harmoni Duero. Its sleek design favours a white finish and upward facing grille, resulting in the model effortlessly dissolving into any residential or commercial setting.
Under the bonnet, the Duero features the most up-to-date electric radiator technology. It has full control over its environment with its incredibly accurate electronic thermostat measuring room temperature to a quarter of a degree. The readings are easily visible and accessible through the Duero’s blue front-facing TFT LCD screen.
It offers total manual and programmable control because of its digital buttons. The remote gives access to the pre-programmed modes installed in the Duero and also all your own personalised settings.
Efficiency
The Harmoni Duero has an inbuilt 24/7 timer so your heating is always ready whenever you need it. Its energy-saving technology optimises your heating solution’s effectiveness, saving you time and money.
Harmoni’s open window technology monitors the ambient temperature of the room and is able to react to any rapid variation. The Harmoni will pause its cycle until the temperature stabilises and then correct to suit your needs. This ensures a minimisation of energy wastage and a maximisation of efficiency.
The Harmoni Duero is Lot 20 compliant and has an IP24 rating.
Functionality
The pre-installed modes the Duero features include eco, comfort and anti-frost. It also supports four editable programs. As a clay filled radiator, the radiator can fluctuate between temperature settings quickly and its aluminium shell ensures its surface temperature is reduced.
The Duero is incredibly quiet and its clay core ensures a comforting heating solution. The Duero is designed to be stylish, minimalist and utilises recent technology to lower your carbon footprint and energy consumption. The Duero drastically increases the comfort offered by your property whilst discreetly disappearing into the background, no thought needed.
Heater Shop supplies the highest quality electric radiators, and if you have any queries we have our technical team on hand to assist - Just call 01473 276686.
Dimensions
Model | Rating (W) | Width (mm) | Height (mm) | Depth (mm) | Heats up to |
HD500 | 500W | 340mm | 575mm | 98mm | 4.5m² |
HD1000 | 1000W | 585mm | 575mm | 98mm | 10m² |
HD1500 | 1500W | 827mm | 575mm | 98mm | 15m² |
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Product reviews
Ratings based on data collected by third party reviewing platform.
5 | 56% | |
4 | 32% | |
3 | 8% | |
2 | 4% | |
1 | 0% |
Paul Roberts
16 August 2023 13:34
Although the radiator design looks good the build quality is poor.
The control panel is also not always responsive. As for the manual thermostate it seems to be calibrated 2 degrees lower than it should be.
Excellent customer service.
Purchase was faulty. Customer services immediately sent a replacement and picked up the original.
Thanks so much for giving us your take on how we are doing. We're glad that customers like you are having a great experience at Heater Shop.
Trusted Customer
31 March 2023 10:45
Excellent heater for small room or to double up in large room
Excellent customer service
Will definitely buy from the heater shop again.
Thank you for your positive feedback. We appreciate your business with us.
Trusted Customer
10 March 2023 09:52
very good heater looks very tidy
very good service
heater received in two days
Thank you for the 5-star review. The team at Heater Shop is thrilled you’re happy with your recent purchase.
Douglas Collins, Glasgow
10 March 2023 07:10
Ease of placing order and delivery is second to none and prices are very competitive
Fantastic service
Placed my order on the at Wednesday at 16:15 and was delivered to me on the Thursday morning at 10:10 the following day to Glasgow Scotland on there standard free delivery service . Price checked the product and found there prices very competitive . Would certainly recommend them . Douglas
Thank you so much for this 5-star review. We really appreciate you being a customer and helping to share the word about us. We’re here for you anytime.
Kevin Whitlock
18 January 2023 15:42
The first heater stopped working after a month, but was replaced quickly. The heater programs are effective and efficient.
Customer service experience
Fast and efficient replacement under warranty
Fantastic to hear, thank you very much for the really great review.
Ruth Clark, Staffordshire
10 November 2022 20:46
Powerful & neat , replacing old storage heaters.
Good company .
Helpful advice on phone . Faulty heater replaced swiftly with good delivery service.
Thank you so much for your 5-star review! We will share this with the team to let them know to keep up the amazing work.
Terry Simmons
30 October 2022 14:45
Warms up well, only had it 2 days so too early to rate 5 stars.
Excellent delivery service
Next day delivery absolutely superb,heater is working ok,only had it 2 days.Only draw back was the template was slightly out of alignment. Never the less soon remedied.
Thank you so much for your 5-star review! We will share this with the team
to let them know to keep up the amazing work.
Ralph Sargeant, Sutton
23 October 2022 10:40
Efficient heater but mounting bracket system could be improved
Good, fast service & delivery
Helpful advice & good products delivered quickly & efficiently.
I would recommend them.
We really appreciate you taking the time to share your rating with us. We look forward to seeing you again soon.
Trusted Customer
22 September 2022 08:56
Good heater I haven't yet seen it turn itself off when it reaches the required temperature. Thicker than others but retains heat for longer.
I ordered, you sent it.
I ordered it and you sent it but not the next day as it said on your site.
Thank you so much for taking the time to leave us a rating. Please accept our apologies for the 1 day delay in the dispatch of your order.
Trusted Customer
31 May 2022 07:27
Excellent service great radiators
Excellent
Excellent service
Thank you so much for taking the time to leave us a 5 star rating - it's much appreciated!