







🌡️ Upgrade your comfort, slash your bills — the smart heat revolution starts here!
The Honeywell HomeSmart HR27 ECO is a sleek, battery-powered digital radiator thermostat valve offering precise temperature control with ±0.1°C accuracy. It supports up to 6 programmable daily switchpoints, fits most radiator valves without tools, and features a large backlit LCD for easy manual operation—no app or WiFi required. Designed for energy efficiency, it includes frost protection, open window detection, and an eco mode, making it a versatile and stylish upgrade for any modern heating system.






| Manufacturer | Resideo |
| Part Number | HR27 |
| Product Dimensions | 9 x 7.8 x 7.8 cm; 250 g |
| Item model number | HR27 |
| Size | Rondostat Single Pack |
| Colour | White |
| Style | New version, pack of 1, Eco mode, 6 time switchpoints |
| Finish | Glossy |
| Material | Plastic |
| Shape | Round |
| Power Source | Battery Powered |
| Voltage | 230 Volts |
| Item Package Quantity | 1 |
| Number of Pieces | 1 |
| Display style | lcd, backlit |
| Plug profile | Wall Mount |
| Special Features | Adjustable, Easy installation, Ergonomic, Lockable |
| Usage | Amateur |
| Included Components | Adaptervalves for RA, RAV, RAVL valves, Batteries, Installation manual |
| Batteries included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |
| Item Weight | 250 g |
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