Ariston HS Premium 24 EU2 - how to zone underfloor, radiators and Siri

Good morning.

I have an underfloor water heating system, radiators and hot water. This is all hooked up to an Ariston HS Premium 24 Eu2 cooker

On the wall in the living room, in turn, is hung a thermostat - also Ariston, which presumably controls the underfloor heating.

The underfloor heating is divided into 6 zones:

*Living room with kitchen (one room) - Zones 1, 2, 3, 4

*Hallway - Zone 5

*Downstairs bathroom - Zone 6

In addition, there is underfloor heating run to the upstairs, but it (this bathroom) is not included in the zones.
There is a small box with an RTL valve in it. I don't know what the principle is and whether there is controllable underfloor heating there.

There is a small thin grey cable coming out of the Ariston cooker, I assume it goes to the thermostat.

In addition I have four radiators on the walls:

*one in a bedroom
*one in the second bedroom
*one in the upstairs bathroom
*one in the downstairs bathroom

Objective:

To divide the house into underfloor heating zones so that the underfloor heating of each room can be independently controlled:

Bathroom downstairs - underfloor radiator
Bathroom upstairs - underfloor radiator
Living room with kitchen - underfloor
Hallway - underfloor
Bedroom - radiator
Bedroom 2 - radiator

All of this I would like to be able to control from the walls (thermostats), Apple HomePod / Siri collaboration with other smart devices running in the smart home - for example, automating the switching on and off of the heating in certain situations or behaviours.

I'm in the process of renovating so can afford to run cables and drill boxes.

I would ask for instructions on what to run and how to run it, what system to buy and how to bundle it all together.

I am attaching pictures for a better preview.

Thank you in advance

Have you asked the magician who concocted this installation?
Have you been satisfied with the performance of this installation so far?

You see, topics like yours come up here regularly. I always endorse it with a text that should be the title of a whole series like "I have a bad installation, what else can I do wrong?".

Buddy, there are several topics in my footer where discussions about such heating have been held.
Read up first and then we can consider what can be done about this "clunker".
Your installation contains a number of design and implementation errors. You can add a zone control, but it will make things even worse. It will increase gas consumption, increase temperature fluctuations and worsen thermal comfort.

The heating was not yet functioning.

The house is in a development state and the same developer installed it.

So now is the time to possibly change it, fix it, improve it.

But the problem is that here is a central heating installation made like for a coal boiler and an old building.
This installation can work well in an old house where radiators are the main heating system and underfloor heating is just an add-on in rooms where room temperature control is handled by radiators with thermostats.
Without reworking the plumbing, you can only try to patch up problems. This heating will work as-is and not very economically.
To make it work well will require a lot of reworking.
Take maybe mark on the plans where you have what elements, especially where the boiler is and where the floor manifold is.

Nice pictures. Only further nothing from them, because you can't see where the manifold is. The first picture of the project is completely unreadable, and the other two lack a full legend and description of where the underfloor heating manifold is. My glass ball tells me it could be under the stairs.

An Ariston boiler hangs in the downstairs bathroom. A radiator also hangs in the same bathroom.

An Ariston central heating controller hangs on the wall between the hallway, bathroom, kitchen and stairs.

The manifold with 6 zones is under the stairs.

On the first floor:

Bedroom - 1 radiator
Second bedroom - 1 radiator
Bathroom - 1 radiator, underfloor heating system and box with RTL

I am still attaching a PDF from the developer with the tenant changes. Same as in the photos but will show better.

Basically, the underfloor in your house is only the living room with kitchenette (open space).
Doing zone control in this case is pointless.
Where you have radiators, control is carried out by thermostatic valves.
Since this underfloor heating area is relatively small, a system like yours may work, provided that there is a PEX 26 pipe coming from the boiler
Looking at the photo, it seems to me that there is a PEX 20 pipe and such a pipe would be too thin.
Check the diameter of this pipe.

If there is a PEX 26 pipe, I would not change anything in the central heating installation, but only add a mixing valve with an actuator and a weather regulator, instead of a thermostatic valve.

Admittedly, the most elegant way would be to do it properly, i.e. to install a clutch and separate pump groups for the floor and radiators, but the house is small and, in addition, it is a large open space.
This weather control will significantly improve thermal comfort on the ground floor and, on top of that, it will allow the heating temperature on the boiler to be slightly lowered, which will translate into increased boiler efficiency.

Do you already have a room controller there?

I wanted the living room with the kitchen as one zone.
Bathroom on the ground floor as a second.
Hallway possibly as the third.
Bathroom upstairs as the fourth.

The heating is mixed, some rooms have only underfloor heating, some only radiators, some have both (bathrooms).

I have a controller only in the living room, it controls all the 'heating'.

What I haven't mentioned is that the radiators don't heat if the underfloor isn't running. So in effect, in order to heat the radiator in the bathroom, I have to set the controller to a higher temperature than the controller feels, in order for the cooker to come on.

The desire to control all this separately was dictated mainly by the fact that I cannot currently control the radiator independently if I would like to dry a towel, for example, without sauntering in the rest of the room.

And as much as I know that underfloor heating has a lot of inertia, I think it makes even less sense to heat the whole thing just to heat one radiator or one room.

As for the pipe, I'll measure tomorrow and see. Are you referring to the pipes in red and blue lagging?