The whole reason for the thread is a bit silly.
He only wants the water on for 20 minutes once in the morning.
His objection to fitting the Hive properly is because it only has 15 minute divisions - 15 or 30 minutes.
So, to get the Hive to do what is required, the thermostat could switch off at whatever temperature the water is after 20 minutes.
I agree it is silly, but that's what he wants. As it is now, I don't know how he deals with the temperature difference between Summer and Winter if the time - cost - is the determining factor and not the temperature.
He only wants the water on for 20 minutes once in the morning.
His objection to fitting the Hive properly is because it only has 15 minute divisions - 15 or 30 minutes.
So, to get the Hive to do what is required, the thermostat could switch off at whatever temperature the water is after 20 minutes.
I agree it is silly, but that's what he wants. As it is now, I don't know how he deals with the temperature difference between Summer and Winter if the time - cost - is the determining factor and not the temperature.