--- product_id: 64281767 title: "Honeywell Home Rondostat HR20-Style programmable Radiator Controller, White" brand: "honeywell home" price: "FREE" currency: GBP in_stock: false reviews_count: 8 url: https://www.desertcart.co.uk/products/64281767-honeywell-home-rondostat-hr20-style-programmable-radiator-controller-white store_origin: GB region: United Kingdom --- # 4 programmable daily time slots up to 30% heating cost savings fits 10+ standard valve types Honeywell Home Rondostat HR20-Style programmable Radiator Controller, White **Brand:** honeywell home **Price:** FREE **Availability:** ❌ Out of Stock ## Summary > πŸ”₯ Take control of your comfort and savings with smart heating! πŸ”₯ ## Quick Answers - **What is this?** Honeywell Home Rondostat HR20-Style programmable Radiator Controller, White by honeywell home - **How much does it cost?** FREE with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/64281767-honeywell-home-rondostat-hr20-style-programmable-radiator-controller-white) ## Best For - honeywell home enthusiasts ## Why This Product - Trusted honeywell home brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Safety First:** Built-in frost protection and child-proof design keep your home safe and worry-free. - β€’ **Smart Savings:** Cut heating bills by up to 30% without sacrificing warmth or convenience. - β€’ **Compact & Stylish:** Sleek white round design blends effortlessly into any modern living space. - β€’ **Precision Scheduling:** Customize your comfort with 4 daily switching times tailored to your lifestyle. - β€’ **Universal Compatibility:** Seamlessly fits all major radiator valves with included adaptersβ€”no hassle installation. ## Overview The Honeywell Home Rondostat HR20-Style is an entry-level programmable radiator controller designed for precise temperature management and energy savings. Featuring 4 customizable daily time slots, compatibility with a wide range of radiator valves, and safety functions like frost protection and child-proofing, it offers an affordable, stylish solution to optimize home heating and reduce costs by up to 30%. ## Description Full description not available ## Features - Entry-level model in the Honeywell Home radiator thermostat range for the price-conscious user - The functions on the economical, programmable Rondostat HR20-Style allow precise control of the room temperature. A personalised time schedule with four switching times per weekday can be set according to your requirements - Achieve savings on heating bills of up to 30% thanks to the radiator thermostat. Valve and frost protection and child-proofing round off the Rondostat HR20-Style’s features - Fits all standard M30 x 1.5 Honeywell Home, Braukmann, MNG, Heimeier, Danfoss, Wingenroth (Wiroflex) R.B.M, Oventrop type A and Oventrop AV6 radiator thermostat valves; the Rondostat HR20-Style can also be mounted on Danfoss RA, Danfoss RAV and Danfoss RAVL valves using the supplied adapters ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | Homexpert by Honeywell | | Part Number | HR20-Style | | Product Dimensions | 6.8 x 6.8 x 6.5 cm; 175 g | | Item model number | HR20-Style | | Colour | White | | Style | Programmable radiator controller | | Shape | Round | | Power Source | Corded Electric | | Voltage | 2.3E+2 Volts (AC) | | Item Package Quantity | 1 | | Display style | analog, backlit | | Plug profile | Wall Mount | | Special Features | Frost Protection, Programmable | | Usage | Heater | | Batteries included? | No | | Batteries Required? | Yes | | Item Weight | 175 g | ## Product Details - **Brand:** Honeywell Home - **Controller type:** Push Button - **Special feature:** Frost Protection, Programmable - **Colour:** White - **Specific uses for product:** Heater - **Temperature Control Type:** Programmable - **Connectivity technology:** Wi-Fi - **Power source:** Corded Electric - **Item weight:** 0.18 Kilograms - **Voltage:** 2.3E+2 Volts (AC) ## Images ![Honeywell Home Rondostat HR20-Style programmable Radiator Controller, White - Image 1](https://m.media-amazon.com/images/I/71QaQ6JNqKL.jpg) ![Honeywell Home Rondostat HR20-Style programmable Radiator Controller, White - Image 2](https://m.media-amazon.com/images/I/61VmAVlnr8L.jpg) ![Honeywell Home Rondostat HR20-Style programmable Radiator Controller, White - Image 3](https://m.media-amazon.com/images/I/61W0rOEwi8L.jpg) ![Honeywell Home Rondostat HR20-Style programmable Radiator Controller, White - Image 4](https://m.media-amazon.com/images/I/61y9AkRR56L.jpg) ![Honeywell Home Rondostat HR20-Style programmable Radiator Controller, White - Image 5](https://m.media-amazon.com/images/I/61ceVeCBMXL.jpg) ## Available Options This product comes in different **Style Name** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good offline alternative *by M***K on 17 November 2021* If, like me, you want a electronic TRV that thermostatically controls the radiator switching, comes on and off at simple set periods and doesn't cost the earth then this unit is for you. I have installed 4 of these devices throughout my house and they have exceeded my expectations. They are not as noisy as some would have you to believe and when you hear them it's actually reassuring that you can hear them working. The build quality is also very good. The only gripes i would have are that, as some have already mentioned, when they are installed vertically, the display is upside down, there are only 2 switching periods and they can be very difficult to install without the right valve fitting. On the last point I actually ended up replacing the valves on a few of my radiators to accommodate these units. Overall a good unit for it's price. ### ⭐⭐⭐⭐ Well built but not perfect *by D***Y on 4 January 2013* BACKGROUNDI bought this HR20 unit for our kitchen radiator. We currently control our boiler using a wireless thermostat which we place in which ever room we are currently using. Our home is occupied for most of the day.GOOD ASPECTS OF THE HR20* Well built* Ultimately, it does what it sets out to do* Lasts for a long time on one change of batteriesBAD ASPECTS* When mounted on our radiator, the HR20's controls and display are upside down! (Although it is easy to remove the HR20 display from the connector)* The HR20 allows for a maximum of 2 heating periods per day (e.g. 6am-9am and 5pm-7pm). Which makes this unit less than ideal for a kitchen where we need at least 3 heating periods each day (breakfast, lunch, dinner).* The unit only displays the current target temperature. It doesn't display the current temp, or whether the valve is open or not. I much prefer appliances which tell me what they are doing.* This unit cannot communicate with the boiler (which I knew before I bought it but I hadn't entirely thought through the implications).* Opening / closing the valve is a little noisy (which seems to be normal for electronic TRVs)CONCLUSIONThe HR20 wasn't suitable for use in our kitchen but it is fine in my young daughter's bedroom.Ultimately I'd much prefer a wireless TRV which can call for heat from the boiler. These are currently available but are quite expensive. ### ⭐⭐⭐⭐⭐ Gives good local control to rooms *by D***H on 20 August 2021* This works fine - the multiple switching points per day are good. The adapters supplied are fine for adapting if you don't use a standard TRV.You should ensure your TRVs are facing outwards rather than upwards in order to have the text legible --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/64281767-honeywell-home-rondostat-hr20-style-programmable-radiator-controller-white](https://www.desertcart.co.uk/products/64281767-honeywell-home-rondostat-hr20-style-programmable-radiator-controller-white) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-15*