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Old 21.02.2012, 01:18
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Geothermal Underfloor Heating

We have a Geothermal underfloor heating system which has been great this winter. We've only been in this apartment a few months but I've noticed that the main system is noisy and seems to be working all the time even in the evening.

I'm not used to this kind of heating as we had gas central heating in the UK. But each room has a thermostat which I have only put up two notches. There is a timer display on the main system but I don't know how to use it and when I've tried to figure it out it doesn't do much.

The thing is the unit is so noisy, especially at night. The air flow system seems to be constantly running too and the noise drives me nuts. Is this normal ?
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Old 21.02.2012, 01:38
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Re: Geothermal Underfloor Heating

What type do you have?

Geothermal often means the water circulatory pipes sunk into a bore hole in the ground, but it sounds like you have the air type with a fan unit outside.

I previously had the former, and now have the latter .... and yes it (the latter) does seem to run a lot and make a bit more noise (electric motor for fans), than just the noise from the compressor of the bore hole system.

When it was really cold (-20C), it was a bit louder - don't know if some moister was frozen and the ice caused more noise, but it's fine now.

Like all other continual noises (Church and cow bells, planes, etc.) you'll get to used to it.

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I'm not used to this kind of heating as we had gas central heating in the UK. But each room has a thermostat which I have only put up two notches. There is a timer display on the main system but I don't know how to use it and when I've tried to figure it out it doesn't do much.
Just to add, with underfloor heating, any adjustment has a time lag of 12-24hrs, so they don't instantly make a difference.
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Old 21.02.2012, 01:48
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Re: Geothermal Underfloor Heating

We were told it was Geothermal. It's called Tecalor. We have a flow vents in each room which are connected to silver piping. But I can't see an external fan. The main unit is huge. Over 6 ft.

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What type do you have?

Geothermal often means the water circulatory pipes sunk into a bore hole in the ground, but it sounds like you have the air type with a fan unit outside.

I previously had the former, and now have the latter .... and yes it (the latter) does seem to run a lot and make a bit more noise (electric motor for fans), than just the noise from the compressor of the bore hole system.

When it was really cold (-20C), it was a bit louder - don't know if some moister was frozen and the ice caused more noise, but it's fine now.

Like all other continual noises (Church and cow bells, planes, etc.) you'll get to used to it.

EDIT:


Just to add, with underfloor heating, any adjustment has a time lag of 12-24hrs, so they don't instantly make a difference.
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Old 21.02.2012, 02:05
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Re: Geothermal Underfloor Heating

I'm a bit confused?

The term geothermal refers to the way the heat is generated from the environment - ground or air.

Then, once the heat is generated, it is then used to warm the house/appt.

It reads like you have some kind of warm air delivery system, as opposed to underfloor heating, which could account for the additional (fan) noise.

Have a look here (and click on heat pump systems on the left) to see if it makes things clearer.
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Old 21.02.2012, 02:29
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Re: Geothermal Underfloor Heating

Hey

After reading the systems and checking the pics ... This is the one we have TTL N5
http://translate.google.ch/translate...prmd%3Dimvnsfd

I'm not sure where the big fan is kept but I assume somewhere for the whole building as its not near our apartment. However, we do have separate air vents. They look like half of a space ship attached to the wall. I know they are connected to the outside as all the dirt stains the paintwork :-(.

Anyhow not sure if it is geothermal now it not. Only going by what the hausmeister told us. Either way we have no control over the panels and I know it's noisy and seems to be running all the time. the heating is definitely floor and water as they had to de calc the other apartments before Christmas.

I find this all confusing. Wish it had a simple on off time mechanism.


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I'm a bit confused?

The term geothermal refers to the way the heat is generated from the environment - ground or air.

Then, once the heat is generated, it is then used to warm the house/appt.

It reads like you have some kind of warm air delivery system, as opposed to underfloor heating, which could account for the additional (fan) noise.

Have a look here (and click on heat pump systems on the left) to see if it makes things clearer.
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Old 21.02.2012, 10:48
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Re: Geothermal Underfloor Heating

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Hey

After reading the systems and checking the pics ... This is the one we have TTL N5
http://translate.google.ch/translate...prmd%3Dimvnsfd

I'm not sure where the big fan is kept but I assume somewhere for the whole building as its not near our apartment. However, we do have separate air vents. They look like half of a space ship attached to the wall. I know they are connected to the outside as all the dirt stains the paintwork :-(.

Anyhow not sure if it is geothermal now it not. Only going by what the hausmeister told us. Either way we have no control over the panels and I know it's noisy and seems to be running all the time. the heating is definitely floor and water as they had to de calc the other apartments before Christmas.

I find this all confusing. Wish it had a simple on off time mechanism.
OK you do appear to have geothermal (heat pump) heating of the air to water variety (works like air-con, but in reverse, and warms water, not air).

I would think that it is underfloor heating and the units on the wall are what the manufacturer refers to as "Energy-saving electronically controlled integrated circulator", which I think means that it continually recirculates the warm air in the room to save energy.

I would also guess that they don't take air from outside but the marks on the wall are natural dust and dirt particles that are present in the air within the house, as it "sucks" in the air to recirculate.

This is probably where the noise problem is, and they may need servicing. If you rent then speak to landlord/agent.

A general note: this type of heating is only efficient if continually running. Unlike gas C.H. it doesn't heat up radiators to red hot in an hour. If switched off it can take up to 48hrs to get the house up to temperature, again.
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Old 22.02.2012, 00:57
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Re: Geothermal Underfloor Heating

Thank you. I really appreciate your help. Our Haus meister seems to always be busy but I'll get on his case.

Cheers :-)

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OK you do appear to have geothermal (heat pump) heating of the air to water variety (works like air-con, but in reverse, and warms water, not air).

I would think that it is underfloor heating and the units on the wall are what the manufacturer refers to as "Energy-saving electronically controlled integrated circulator", which I think means that it continually recirculates the warm air in the room to save energy.

I would also guess that they don't take air from outside but the marks on the wall are natural dust and dirt particles that are present in the air within the house, as it "sucks" in the air to recirculate.

This is probably where the noise problem is, and they may need servicing. If you rent then speak to landlord/agent.

A general note: this type of heating is only efficient if continually running. Unlike gas C.H. it doesn't heat up radiators to red hot in an hour. If switched off it can take up to 48hrs to get the house up to temperature, again.
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