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Old 02.10.2015, 15:17
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Underfloor heating

Hello

Now the weather is getting cooler I think I may have an issue with the underfloor heating in my apartment, but I'm not sure having never had it before.

It's in a new building and I moved in during the summer. There's no boiler, radiator's etc. just a knob on the walls that I thought was meant to control the underfloor heating.

I've turned the dial up all the way and waited, but even after a few days I don't notice any difference. Its starting to feel quite cold inside my apartment. Apart from the bathroom which has vinyl floor/little tiles that are cold to walk on the wooden floors in rest of the flat don't feel warm to the touch either so I'm wondering whether it's working correctly?

Does anyone else have a similar system in their apartment or any experience with this type of heating in Switzerland as my landlord is unresponsive. Not sure whether I should go out and buy some additional heater's or not.

Thanks.
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Old 02.10.2015, 15:20
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Re: Underfloor heating

There's probably a central control area in the basement with the heating controls & that needs to be switched on first. The controls you have inside your flat will only work once the main thing is on.
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Old 02.10.2015, 15:30
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Re: Underfloor heating

Do you have it on 24h per day, or do you turn it off when you are not home?

Underfloor heating takes a while to start, and should not be turned off - the idea is to keep a constant temperature, not punctual power heating.

If you have the underfloor heating on non-stop since a few days and the floor does not feel warmer to touch, either you have a problem with the system or the main heating is not yet on - the central heater is off, sometimes automatically (until temperature drops below a pre-defined temperature (in my home it's 10 degrees during the day)) or manually by the caretaker.

Contact the landlord. This is the kind of thing you must solve with him.

As a precaution, you can ask a neighbor if their heating is working properly, which will help you evaluate if the problem is your system or main heater being off.

As a small tip, corridors are usually a good point to figure out if the heating is on, because no matter how much isolation you put on the cables and floor, the concentration of tubing going through the corridor to spread to the different rooms of the house ends up always heating the corridor a bit more.
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Old 02.10.2015, 15:52
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Re: Underfloor heating

The thermostat in your apartment only works if the main heater in the building is switched on. Usually it's switched off in the summer months. Usually the landlord switches it on at a certain date in the autumn, or else if the temp drops below a certain value. It's handy to have some electric heaters in your apartment for the days in between after the warm summer weather is gone and they haven't yet switched on the main heating.
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Old 02.10.2015, 17:02
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Re: Underfloor heating

There is probably three or so months where you can say if anything is wrong with your apartment (since it's a new building), inspect everything an the "régie" will get the repairs done under a guarantee with the builders. Don't underestimate the importance of that period - shutters, summer blinds, windows, tapisserie, heating, etc...
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Old 02.10.2015, 17:03
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Re: Underfloor heating

If you've confirmed the building heating is running:

The thermostats may be electric with solenoid operated valves in some central distribution location - if so check the power isn't off to that circuit.
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Old 02.10.2015, 17:22
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Re: Underfloor heating

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There is probably three or so months where you can say if anything is wrong with your apartment (since it's a new building), inspect everything and the "régie" will get the repairs done under a guarantee with the builders. Don't underestimate the importance of that period - shutters, summer blinds, windows, tapisserie, heating, etc...
Completely irrelevant to the OP.
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Old 02.10.2015, 17:26
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Re: Underfloor heating

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It's handy to have some electric heaters in your apartment for the days in between after the warm summer weather is gone and they haven't yet switched on the main heating.
That really was a SBrinz answer.

Don't be ridiculous. If you've got underfloor heating - why would you want to pay for really inefficient electric heaters and their running costs?



If you're cold then get the heating turned on.

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Completely irrelevant to the OP.
Why on earth do you say that?
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Old 02.10.2015, 17:27
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Re: Underfloor heating

There is another thread about the same subject from a couple of years ago but I don't feel like searching .

Since the building is new, there will be air in the system that needs to be "bled" out. It will be worse if you are on the top floor where all of the air will collect in the system before it is vented.

Best to talk with the property company and tell them the problem. They will send someone to do the work. This should not be your work to do since it is a new apt. They may try to push it off on you but don't let them.

Once the air is bled off (will probably need to do so more than once) the system will work correctly.
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Old 02.10.2015, 17:30
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Re: Underfloor heating

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Why on earth do you say that?
I'd be willing to bet that this is simply a case of the central boiler not having been switched on, rather than a fault in the system. Therefore doesn't fall into the whole post moving in guarantee thing.

Besides, IIRC you only have 1 month to hand in your list, but doesn't cover the fact that central heating may or may not be working anyway.

Contacting the hauswart (rather than the landlord if different) & communication with the neighbors as mentioned above would probably help more.
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Old 02.10.2015, 17:42
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Re: Underfloor heating

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I'd be willing to bet that this is simply a case of the central boiler not having been switched on, rather than a fault in the system. Therefore doesn't fall into the whole post moving in guarantee thing.
That's exactly the problem we had and for months we kept getting the excuse that we should wait as it takes time for the system to work.

But I'm sure you're right and it's just a question of it getting switched on.

Not sure why the OP can't speak to the neighbours or walk down to the boiler room and check to see whether it's running (without touching any controls)?

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Besides, IIRC you only have 1 month to hand in your list, but doesn't cover the fact that central heating may or may not be working anyway.
It didn't matter in our case.
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Old 02.10.2015, 20:30
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Re: Underfloor heating

When I moved into my current place (middle of the winter a couple of years ago), I also thought there was a problem with the underfloor heating. Even with the thermostat turned up to maximum, I was having trouble heating to 20 degrees. It was most noticeable in the bathroom, where the floor tiles were really cold in the morning.

Then I looked at the instructions booklet for the thermostat... and discovered that there was a button to activate "energy saving mode" - presumably to be used when you go away for a few days - and that this mode was in fact activated.

Might be worth having a look to see if you have something similar... as soon as I deactivated it, there was a "whooooosh" under the floorboards and the flat started to heat.
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Old 03.10.2015, 13:12
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Re: Underfloor heating

Hello!


What is the temperature in your flat? If it's around 21 degrees during the day there is no need for heating yet.
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Old 03.10.2015, 16:03
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Re: Underfloor heating

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Hello!


What is the temperature in your flat? If it's around 21 degrees during the day there is no need for heating yet.
That's a bit presumptuous isn't it? Surely the OP can decide whether they are warm enough and not you?
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Old 03.10.2015, 18:08
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Re: Underfloor heating

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That's a bit presumptuous isn't it? Surely the OP can decide whether they are warm enough and not you?


And a source of many disputes in mixed British / other nationality couples where the Brit will view 20-21C as suitably warm enough, thank you, and the non-British half will turn up the thermostat to 24C as soon as the British half has their back turned!
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Old 03.10.2015, 19:15
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Re: Underfloor heating

Totally agree with you McTAVGE. Ours is set to a nice round 20.c. If you're cold in the evening, put on your tiger onesie (christmas pudding in my case). Last winter we were invited to someones house & I had to strip to my vest which is not a pretty sight while I sat there like a dripping beetroot. Dread to think what theirs was set on. They were in summer clothes.
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Old 03.10.2015, 19:22
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Re: Underfloor heating

In our flat (it's pretty old ) the floor gets noticeably warm and the thermometer shows around 22-23 degrees all the time. The system is alway bled of air before the heating season starts and we can hear a lot of bubbles flowing under the parquet/tiles You need to speak to yer landlord as 20-21C might be insufficient for some persons, and especially it won't suffice for newborn children/bathroom
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Old 12.10.2019, 10:52
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Re: Underfloor heating

Hi all,

I know this is an old topic, but I have similar issue, so better to reuse an old thread.
I am new to this forum and also new in the Switzerland (moved here last week).
We are currently living in the new building in the apartment fitted with the floor heating.The Problem is that we have tried to use apartmants heating system to see how it works, but it seems that the performance of the system is not great.
When i turn on the termostat knob in living room to maximum in the system i can see that it goes with a flow of around 2l/min but this water that goes into the system is not hot. When I try to touch the input pipe to me it is barely warm but I can fill the flow of water in the pipes.
After the system was running for 12h the floor in the living room was still cold to the touch.
I have contacted my landlord but she told me that this is normal for modern floor heating (that the floor is not hot)and that i should measure temperature rise in the room instead. Since I do not have any termostat device that can measure temperature I can only tell that my feeling is that the room did get warmer but not by a lot as I would expect with the knob turned to max.

Is this behavior normal or should I complain to the landlord more?
I am afraid of winter with this kind of heating system.
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Old 12.10.2019, 10:59
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Re: Underfloor heating

Mine takes about 24 hrs before it gets warm. And buy a cheap thermometer?
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Old 12.10.2019, 11:18
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Re: Underfloor heating

On this subject .. Anybody know what you call the little plastic screw caps used to regulate the flow of the underfloor heating..?

I want mine at the real minimum so went to the panel realised that of the six plastic caps, only one actual works, the others have busted threads and are just sat on there for decoration.. I can take them off and manually push the valve and see the float moving .. Meantime i just turned the system off (individual house).

I'm going away for a few days so just wanna order online so that they'e waiting when i get back..
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