Underfloor heating question

[nike78]

I want to implement a multizone thermostat with shelly. I will have 4 zones controlled by an H&T thermostat each, the actuators will be controlled by a Shelly 4P Pro relay for each zone, and the start-up of the gas boiler unit and the mixing pump will be done with the help of a Shelly 1 plus relay. My problem is when two zones demand heat simultaneously, and then one of them reaches the set temperature. How to proceed so that the relay that controls the gas boiler unit and the mixing pump does not stop until the last zone that requested heat reaches the desired temperature.
Thank you.

[nike78]

nobody?

[Dennis Dalgaard Gottlieb]

I have done it like this. Works perfect. 
 

[Chriss]

Exactly, with the scene function 👍🏻😀

[nike78]

Ok, thanks, but is still working even if the internet is down?  

[nike78]

?

[Olsche]

3 minutes ago, nike78 said:

?

No, unfortunately it won't work if internet is down. Reason: Scenes are generally cloud-bound.

You should be aware of the risk of failure

[nike78]

Is there a way to make it work without internet? Let's say with scripts?

It's not normal to have your heating depending on internet. Alterco please help with this aspect please.

[nike78]

No answer from Shelly....

[Dimitar]

On 3/5/2024 at 2:39 PM, nike78 said:

No answer from Shelly....

There is a way using BLU H&T and scripting. This will work without internet, but need more experience and not easy to be maintenanced.