HomeMatic-Forum / FHZ-Forum

And one more thing. If I add radiator thermostats as well, is it possible to get separate demand outputs for radiators and underfloor heating. My heat pump can decrease leaving temperature automatically, if there is no demand from radiators, thus becoming more efficient.

Thanks for clarifying regarding different models. I did not realize there were two. What about RF reception when controller is inside metal manifold enclosure? I have seen other brands providing external antennas for that. If I have more than one underfloor pipe loop inside a room, I will have to us...

Hi, you can use both. The MultiIO only makes sense, if your underfloor heating is able to do also cooling. Gerti Yes, my heat pump will be able to do cooling as well. Do I understand correctly that input on Multi IO Box is used to receive a signal from heat pump, that it is now in cooling mode? Und...

Underfloor heating controller does not seem to have a demand signal for boiler and an output to control circulation pump directly on the controller. Is it possible to assign these functions to Multi IO Box? Installation/operation manual of controller does not give clear instructions on how to do it ...

It’s possible but their are cheaper ways than to use Homematic IP devices for example Wifi thermostats or a temperature measure e.g. from Shelly and a middleware/Mqtt Server to connect the thermostat and your A/C (like Home Assistant, ioBroker or OpenHab). That's the problem. There are no cheap WiF...

I don't need physical connection. A/C has a WiFi module and REST calls can be made to control it. So thermostat does not need to directly interface with A/C. When setpoint is changed at the WTH2, I need a way to know this and I will then forward new temperature to A/C through WiFi. In other words, w...

I'm looking for a simple thermostat, which could be used to control my split air-conditioner/heatpump unit. Can I use HmIP-WTH-2 for that? Is it possible to read current temperature and setpoint from it using local API. And also is it possible to update setpoint by API if it is changed outside of WT...