Understanding floor heating system

It is really strange.
I am currently not playing with it, because in the morning is 2°C and afternoon 20°C, so I am waiting to have it stavilized.
I have put everywhere between 10-20°C.
The bedroom is ok temperature, around 18°C, for me too warm, so sleeping with the open window.
The guest bedroom is around 16°C.
The living room is around 23°C, I want to have a window open all the time because it is too hot.
The bathroom is not warm enough (haven’t tested the temperature yet).

I am not sure, if I should turn the thermostat completely to 0°C, we weren’t allowed to do that in previous apartment because (if I remember correctly) it activated cooling.

So, not sure how to proceed and I want to avoid too high bill in few months…I have to ask the neighbour, how is he doing it…

The thermostat is quite old, I would say.

I think you are too early in the season to be able to do this. Temperatures outside still go up and down quiet strongly. This morning when I opened the windows I had no problem, it was cool but okay. The other day I was freezing. Our heating-system for example turns off when it’s more than 14°C outside and on when it’s less. With floor heating being slow again that brings on constant changes. The thermostat in my bedroom is still on off, no problem.
You need to wait until winter is here to stay, then you can do adjustments that will suit you.
And yes, your thermostat is probably only slightly newer than mine. The degrees on there mean basically nothing :grin:

An other thing is; the South “wall” of my living room is windows only. So when the sun shines during day it gets pretty warm even in winter. My thermostat there is on 15 most winter and at nights I let the shutter down. Works fine for me. So do consider your windows and what direction they face.

I don’t think the heating has been turned on yet in our block. Going round with an infra red thermometer there is no difference in temperature in any of the rooms and comparing the floor to the walls. This is after opening the valves on the underfloor heating. An issue with thermostats is that a lot depends on where they are situated as well as to how well they function.

The thermostats you have are basic and contain a bi-metallic strip and a plastic wheel.
The two strips of different metal joined together have different characteristics - when heated, they expand at different rates causing the strip to bend, touch the electrical contact which will operate the thermostatic valve, allowing more warm water to flow through the heating pipes.

They are not 100% accurate so if you want to objectively know what the room temperature is, use an electronic room thermometer. They cost just a few francs and even the Ali-Express ones are accurate enough.

That won’t happen in this case!

Your wall thermostat can provide more heat, or no heat, and that’s it.

It’s fine to turn them off.

Ours are always off in the bedrooms, summer or winter. The latent heat in the rest of the house will keep them at around 15% minimum even in winter, with no bedroom heating.

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The easiest way to tell whether the underfloor heating is on is to get a cat.

At the point where all the heating pipes come out of the manifold and go their separate ways around an apartment, there will be a tight pack of heating pipes.

If the cat is sleeping on the floor here then the underfloor heating is on.

If you have no cat then a hand pressed against the floor will work.