Robert if I understand it well, the same thermostat switches the heater and the floorheating at the same time?
if so, what if the floor is warm enough but another room needs heating?
I have double checked a few things on my system. I have a combined water/heater.
My floorheating pump draws almost 70 watts.
My heater while in idle draws almost the same. (and it is already in economy mode).
When it starts to heat-up, power use goes up to 120 watts.
I have switched it to summer mode, basically switched off except for warm water heating and it still draws 70 watts.
disturbing find I must say. Meaning that with my 2 floorheating systems the pumps draw over 200 watts.
First of all you 7 watts pump seems interesting but only if it indeed uses 7 watts while in use. I am curious how they could make it so much lower on power consumption.
Secondly I am on a quest to find out why my heater uses so much power. I assume that by using the temperature adjusted mode, where the system keeps the water temp regulated in balance with the temp outside, keeps the pump running to measure the water temp and is able to be 'adaptive' with adding heat.
Seems time to check, if a system like the Honeywell zone system might be interesting on the long term....
Robin is happy with it.