• Easy to use.
• Easy to Install.
• Energy Saving.
• Precision control for your room temperature.
• Suitable for the following standard radiator thermostat valves: Honeywell, Braukmann, MNG, Heimer, Danfoss.

Product Description ------------------- Thermostatic Radiator Valves (TRVs) sense the air temperature around them and regulate the flow of water through the radiator which they are fitted to. They do not control the boiler. They should be set at a level that gives you the room temperature you want. These settings may have to be different in each room, and you should set the TRVs to suit each room and then leave them to do their job. Turning a TRV to a higher setting will not make the room heat up any faster. How quickly the room heats up depends on the boiler size and setting, and the radiator size. Turning a TRV to a lower setting will result in the room being controlled at a lower temperature, and saves energy. TRVs need a free flow of air to sense the temperature so they must not be covered by curtains or blocked by furniture. TRVs cannot turn off the boiler when the house is warm. To do that, you will need a room thermostat as well. The radiator in the room with the room with the room thermostat should not normally have a TRV, but if it does, keep the TRV on the maximum setting and adjust the room thermostat as explained with the instructions The HR-20UK Rondostat is an electronic radiator control. It allows the user to precisely control the temperature in a room and introduces automatic running set periods during the day to tailor heating requirements. Suitable for the following standard radiator thermostat valves: Honeywell, Braukmann, MNG, Heimer, Danfoss. Features include: Easy to install - Simply insert the batteries, set the time and date, unscrew the old thermostat control knob and the Rondostat (using correct valve/adaptor supplied). You will not need to drain the radiator if you use a suitable adaptor. You may require pliers or a screwdriver to remove adaptors. 7 Day Program - Program each day differently – up to 4 periods per day. Pre-redefined factory time program for fast start. Automatic Summer/Winter time change. Control Range - Can control a range between 5°C and 28°C which can be manually adjusted at any time. Sensitivity within 0.1°C. Frost protection under 5°C. “Window Open” Detection - Automatic function stops heating when an open window is detected. Only available if valve is placed directly in air flow of open window. Box Contains ------------ 1 x Homexpert Heating Controls HR20UK Rondostat 1 x Instruction manual