• Why does my Heat On Demand seem to go in a continuous boost loop?
• How do I enable Heat On Demand?
• How does the Hive Radiator Valve read my room temperature?
• How do I reset my Hive Radiator Valve?
These FAQs should provide some insight into what is happening with your radiator valves during the
initial install stage.
I have just connected my Hive Radiator Valve and sent a command, but my radiators are not heating.
What is happening?
After the initial installation of the Hive Radiator Valve (also known as a TRV), it will go through a phase
where it will learn the optimum opening point of the valve.
During this learning phase, the radiator valve opens the valve slowly in order to detect the optimum
opening point. This means it can take up to two hours for your radiator to warm up. The app and
radiator valve will both show the temperature you have selected, but the radiator may stay cold.
This is standard and expected during the learning phase.
The time for the learning phase will depend on how much your heating is on. Your radiator valve will
learn when it's set above current room temperature via the app and when your thermostat has also
switched on the boiler to provide heat to all radiators. The radiator valve will need at least 2 hours in
this state to complete learning. If your heating is on regularly, this learning phase should finish within
five days, but it can take much longer over the summer if the weather is warm and your heating stays
off.
Your radiator valve can speed up the learning process by running special learning cycles overnight. If you
enable Heat On Demand, your radiator will switch the heating on for an hour during the night when
your home is cool, and will slowly open the valve until it detects hot water flowing. This will usually
complete the learning process over the first night and it will fully calibrate your radiator valve by
morning. Sometimes, it can take a couple of overnight learning cycles to calibrate all the radiator valves
in your system. The overnight learning will run for a maximum of 5 nights.
If you don’t want the overnight learning cycles to run, you can disable Heat On Demand for the first
week after installation. This may mean that your radiator valves take longer to complete their learning
phase and become fully responsive.
You can check that your radiator valve is mounted ok and works as expected by changing the
temperature using the dial on the radiator valve rather than using the app. When you use the dial on the
radiator valve and turn it immediately to a high temperature (eg 32’C) then the learning period is
bypassed and the valve will open immediately, allowing the radiator to warm up quickly (as long as the
heating is on).
You can also test the radiator valve by setting it to install mode (by pressing the button under the screen