http://www.diy.com/nav/fix/electrica...averf-devices/
temperature_control/Thermostat-Radiator-Valve-Set-11937516?
skuId=12448222&_requestid=131939

I find TRVs ineffective but have been looking at some like the above, a
wall mounted thermostat linked to a trv.

But they seem to work off batteries, surely these can't last very long.

Anyone any experience of these?

On Wed, 2 Oct 2013 22:35:06 +0000 (UTC), R D S
wrote:

http://www.diy.com/nav/fix/electrica...averf-devices/
temperature_control/Thermostat-Radiator-Valve-Set-11937516?
skuId=12448222&_requestid=131939

I find TRVs ineffective but have been looking at some like the above, a
wall mounted thermostat linked to a trv.

But they seem to work off batteries, surely these can't last very long.

Anyone any experience of these?


You can also get traditional TRVs with a temperature sensing phial
connected to the valve head via a capillary tube so the sensed
temperature can be more representative of the room.

No batteries.

--
Graham.

%Profound_observation%

On Wed, 02 Oct 2013 23:48:11 +0100, Graham. wrote:



You can also get traditional TRVs with a temperature sensing phial
connected to the valve head via a capillary tube so the sensed
temperature can be more representative of the room.

No batteries.


I like the sound of that, didn't know they existed, cheers.

On Wed, 2 Oct 2013 23:04:02 +0000 (UTC), R D S
wrote:

On Wed, 02 Oct 2013 23:48:11 +0100, Graham. wrote:



You can also get traditional TRVs with a temperature sensing phial
connected to the valve head via a capillary tube so the sensed
temperature can be more representative of the room.

No batteries.


I like the sound of that, didn't know they existed, cheers.

Some details he

https://www.google.co.uk/url?sa=t&rc...53371865,d.d2k


or
http://tinyurl.com/nefjtqq

It's a PDF you download.

--
Graham.

%Profound_observation%

R D S wrote:

http://www.diy.com/nav/fix/electrica...averf-devices/
temperature_control/Thermostat-Radiator-Valve-Set-11937516?
skuId=12448222&_requestid=131939

I find TRVs ineffective but have been looking at some like the above, a
wall mounted thermostat linked to a trv.

I have some of these

http://www.conrad-electronic.co.uk/c...-Radio-Exhaust

(The "Radio Exhaust" is actually a radiator bleeding device, and
this combination is £10 cheaper than one without the freebie)

No issues with batteries, and they seem to work as anticipated.

Chris
--
Chris J Dixon Nottingham UK


Plant amazing Acers.

On Thu, 03 Oct 2013 07:27:30 +0100, Chris J Dixon
wrote:

R D S wrote:

http://www.diy.com/nav/fix/electrica...averf-devices/
temperature_control/Thermostat-Radiator-Valve-Set-11937516?
skuId=12448222&_requestid=131939

I find TRVs ineffective but have been looking at some like the above, a
wall mounted thermostat linked to a trv.

I have some of these

http://www.conrad-electronic.co.uk/c...-Radio-Exhaust

(The "Radio Exhaust" is actually a radiator bleeding device, and
this combination is £10 cheaper than one without the freebie)

No issues with batteries, and they seem to work as anticipated.

Chris


Max. range 100 ms (with free visual contact)

I imagine that's meters not milliseconds, and the bit in brackets it
chinglese for line-of sight (BICBW)

--
Graham.

%Profound_observation%

"R D S" wrote in message
...
http://www.diy.com/nav/fix/electrica...averf-devices/
temperature_control/Thermostat-Radiator-Valve-Set-11937516?
skuId=12448222&_requestid=131939

I find TRVs ineffective but have been looking at some like the above, a
wall mounted thermostat linked to a trv.

But they seem to work off batteries, surely these can't last very long.

Anyone any experience of these?

You are entirely correct, they are useless.
The sensor is affected more by the nearby radiator than the room
temperature.

However, you can get them with remote sensors/bulb that do work, (no
batteries purely mechanical)
It has a sensor linked to the valve with a capillary tube.

They are about 50% extra.
Google remote sensor TRV
http://www.myson.co.uk/products/remote_sensor_heads.asp

"harryagain" wrote in news:l2j7mv$2is$9
@dont-email.me:


"R D S" wrote in message
...
http://www.diy.com/nav/fix/electrica...averf-devices/
temperature_control/Thermostat-Radiator-Valve-Set-11937516?
skuId=12448222&_requestid=131939

I find TRVs ineffective but have been looking at some like the above,
a
wall mounted thermostat linked to a trv.

But they seem to work off batteries, surely these can't last very
long.

Anyone any experience of these?

You are entirely correct, they are useless.
The sensor is affected more by the nearby radiator than the room
temperature.

However, you can get them with remote sensors/bulb that do work, (no
batteries purely mechanical)
It has a sensor linked to the valve with a capillary tube.

They are about 50% extra.
Google remote sensor TRV
http://www.myson.co.uk/products/remote_sensor_heads.asp




The problem I find with TRV's is that the scale graduations are too
course. A 2 or 3 degree difference is all within about a 10th of a
increment.
I find it useful to set them by listening carefully. Get the room to the
right temp and then slowly turn the control down until you hear the flow
being throttled or stopped. (works for me - if I listen carefully) Then
lock the control knob - or mark it.

"DerbyBorn" wrote in message
2.236...
"harryagain" wrote in news:l2j7mv$2is$9
@dont-email.me:


"R D S" wrote in message
...
http://www.diy.com/nav/fix/electrica...averf-devices/
temperature_control/Thermostat-Radiator-Valve-Set-11937516?
skuId=12448222&_requestid=131939

I find TRVs ineffective but have been looking at some like the above,
a
wall mounted thermostat linked to a trv.

But they seem to work off batteries, surely these can't last very
long.

Anyone any experience of these?

You are entirely correct, they are useless.
The sensor is affected more by the nearby radiator than the room
temperature.

However, you can get them with remote sensors/bulb that do work, (no
batteries purely mechanical)
It has a sensor linked to the valve with a capillary tube.

They are about 50% extra.
Google remote sensor TRV
http://www.myson.co.uk/products/remote_sensor_heads.asp




The problem I find with TRV's is that the scale graduations are too
course. A 2 or 3 degree difference is all within about a 10th of a
increment.
I find it useful to set them by listening carefully. Get the room to the
right temp and then slowly turn the control down until you hear the flow
being throttled or stopped. (works for me - if I listen carefully) Then
lock the control knob - or mark it.

You only think that. When you open the valve up, the surge of hot water
nearby shuts it down again pretty quickly.

Some times they are intalled on the cooler return pipe & sometimes with the
sensor head horizontal to try to overcome the probelm.

On Wednesday 02 October 2013 23:35 R D S wrote in uk.d-i-y:

http://www.diy.com/nav/fix/electrica...averf-devices/
temperature_control/Thermostat-Radiator-Valve-Set-11937516?
skuId=12448222&_requestid=131939

I find TRVs ineffective but have been looking at some like the above, a
wall mounted thermostat linked to a trv.

But they seem to work off batteries, surely these can't last very long.

Anyone any experience of these?

Have a look he

http://www.conrad-electronic.co.uk/c...EA_17200/Home-
Automation-Systems

before going with a no-name B&Q thingy...

BTW - my school, like 30 years ago, had TRVs with wall mounted senders
linked by capillary tube. Simple, no batteries.

Or did you want the timer functionality too?

--
Tim Watts Personal Blog: http://squiddy.blog.dionic.net/

http://www.sensorly.com/ Crowd mapping of 2G/3G/4G mobile signal coverage

Reading this on the web? See:
http://wiki.diyfaq.org.uk/index.php?title=Usenet

In article , R D S wrote:
http://www.diy.com/nav/fix/electrica...averf-devices/
temperature_control/Thermostat-Radiator-Valve-Set-11937516?
skuId=12448222&_requestid=131939

I find TRVs ineffective but have been looking at some like the above, a
wall mounted thermostat linked to a trv.

But they seem to work off batteries, surely these can't last very long.

Anyone any experience of these?

I'm tempted by http://zwave-products.co.uk/shop/article_206/danfoss and
http://razberry.z-wave.me/, but no experience.