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Gas bellows sensing element. 2-wire installation. EN 60730.

Gas bellows sensing element. 2-wire installation. EN 60730.
Average Customer Rating:
4.333 out of 5
4.3
 out of 
5
Open Ratings Snapshot
Rating Breakdown 21 reviews
5 stars
12
4 stars
6
3 stars
2
2 stars
0
1 star
1
19 of 21(90%)reviewers would recommend this product.
Customer Reviews for Siemens RAA20 Room Thermostat
Review 1 for Siemens RAA20 Room Thermostat
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
5 out of 5
5 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
Would you recommend this product? Yes
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
5 out of 5
5 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
Great Value
21 Apr 2013
By Sparky1969
, Norfolk
" A good looking quality stat. No neutral means no built-in anticipator so not such fine control as a 3-wire stat, but I've never found that to be an issue.
Highly recommended.
"
Review 2 for Siemens RAA20 Room Thermostat
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
5 out of 5
5 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
Would you recommend this product? Yes
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
5 out of 5
5 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
STATus quo
7 Mar 2013
By Mickeyplum
, Oldham
" I have used these before and they are pretty easy to fit and seem quite decent. Overall a good stat at a great price! If you need it, buy it. "
Review 3 for Siemens RAA20 Room Thermostat
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
5 out of 5
5 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
Would you recommend this product? Yes
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
5 out of 5
5 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
quick install
1 Jan 2013
By heselectric
, Berkshire
" 2 wire installation makes life so much easier and more cost effective with cable prices at their highest "
Review 4 for Siemens RAA20 Room Thermostat
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
5 out of 5
5 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
Would you recommend this product? Yes
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
5 out of 5
5 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
Best basic room stat
29 Dec 2012
By MrBlart
, Mawdesley
" Excellent value for money & works perfect. One set of change over contacts that will switch up to 240VAC. Not suitable for switching a heavy load such as a heater, just a very good simple room stat that does not need any power to work. "
Review 5 for Siemens RAA20 Room Thermostat
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
Would you recommend this product? Yes
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
room thermastat
30 Nov 2012
By alanby49
, bristol
" excellent value for money, working perfectly,just make sure the simple wiring is correct, if not sure, look on internet. "
Review 6 for Siemens RAA20 Room Thermostat
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
5 out of 5
5 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
Would you recommend this product? Yes
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
5 out of 5
5 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
best value
20 Jun 2012
By miff
, nottingham
" used lots of these no problems, easy to fit looks good. "
Review 7 for Siemens RAA20 Room Thermostat
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
4 out of 5
4 out of 5
Reliability: 
4 out of 5
4 out of 5
Would you recommend this product? Yes
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
4 out of 5
4 out of 5
Reliability: 
4 out of 5
4 out of 5
easy to fit, useful for user
4 May 2012
By jami
, Bournemouth
" it is cheaper than local supplier,
very easy to fit,
easy to use for ordinary also elderly user,
match with different installation.
"
Review 8 for Siemens RAA20 Room Thermostat
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
5 out of 5
5 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
Would you recommend this product? Yes
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
5 out of 5
5 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
BIG in Looks - SMALL in Cost
21 Feb 2012
By dgreenuk
, Stevenage
" Replaced my tatty 25 year old Honeywell Thermostat with this nicer looking one from Siemens. Very easy to install as back plate allows for various screw mounting points. I used my existing 2 x holes that made the job very quick. No neutral connection needed only 2 x wires. Full Instructions Supplied. Neat on the wall and very accurate. Thank You ScrewFix "
Review 9 for Siemens RAA20 Room Thermostat
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
Would you recommend this product? Yes
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
Not too hot to handle!
11 Apr 2011
By jumbolecky
, Colchester
" Easy to install, efficient operation. All you expect from a room stat. "
1 of 1 people found this review helpful.
Review 10 for Siemens RAA20 Room Thermostat
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
4 out of 5
4 out of 5
Reliability: 
4 out of 5
4 out of 5
Would you recommend this product? Yes
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
4 out of 5
4 out of 5
Reliability: 
4 out of 5
4 out of 5
Straightforward stat, easy fit
19 Oct 2010
By caylar
, Chester
" No neutral or earth needed. I simple fitted this in line with the common to the programmer. Wall mount is well designed, terminal easy to connect to, instructions are clear.
Remarkably, Siemens even includes a diagram of the back plate with dimensions of all the holes in mm and ins.! Over the top.
The thermostat worked first time and looks neat on the wall. "
4 of 4 people found this review helpful.
Review 11 for Siemens RAA20 Room Thermostat
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
5 out of 5
5 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
Would you recommend this product? Yes
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
5 out of 5
5 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
simple Room Thermostat
22 Nov 2009
By tooluser
, milton keynes
" easy to install, easy to set room temperature and neat designed unit "
2 of 2 people found this review helpful.
Review 12 for Siemens RAA20 Room Thermostat
Overall Rating: 
5 out of 5
5 out of 5
Value: 
4 out of 5
4 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
Would you recommend this product? Yes
Overall Rating: 
5 out of 5
5 out of 5
Value: 
4 out of 5
4 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
Replacement stat
16 Dec 2008
By Anonymous
, Lancashire
" I used this as a replacement for an existing unit. It is very accurate, and easy for all to use. "
7 of 7 people found this review helpful.
Review 13 for Siemens RAA20 Room Thermostat
Overall Rating: 
4 out of 5
4 out of 5
Value: 
4 out of 5
4 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
4 out of 5
4 out of 5
Reliability: 
4 out of 5
4 out of 5
Would you recommend this product? Yes
Overall Rating: 
4 out of 5
4 out of 5
Value: 
4 out of 5
4 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
4 out of 5
4 out of 5
Reliability: 
4 out of 5
4 out of 5
siemens room stat
28 Apr 2013
By kebin
, lanark
" simple instalation does exactly what it says and comes from a well established manufacturer "
Review 14 for Siemens RAA20 Room Thermostat
Overall Rating: 
4 out of 5
4 out of 5
Value: 
4 out of 5
4 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
4 out of 5
4 out of 5
Would you recommend this product? Yes
Overall Rating: 
4 out of 5
4 out of 5
Value: 
4 out of 5
4 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
4 out of 5
4 out of 5
Siemens RAA20 Room Thermostat
16 Dec 2012
By Adrian11
, Hull
" Wanted one that works well with 2 wires ie for a combi boiler.
Just the ticket
"
Review 15 for Siemens RAA20 Room Thermostat
Overall Rating: 
4 out of 5
4 out of 5
Value: 
4 out of 5
4 out of 5
Features: 
3 out of 5
3 out of 5
Performance: 
4 out of 5
4 out of 5
Reliability: 
3 out of 5
3 out of 5
Would you recommend this product? Yes
Overall Rating: 
4 out of 5
4 out of 5
Value: 
4 out of 5
4 out of 5
Features: 
3 out of 5
3 out of 5
Performance: 
4 out of 5
4 out of 5
Reliability: 
3 out of 5
3 out of 5
Siemens RAA20 Room Thermostat
3 Dec 2012
By Handyman2503
, Dover/ Kent
" It is a very simple Thermostat, however its worked well if you get use to it.
However the Celsius marking are not very accurate so please don't expect ,by setting
the temperature dial to 20C that you will have 20C. in my case I got 18C and so on.
A simple way is, to hang a normal room thermostat next to it. Ones you know by how much the dial is out, you will be fine. Then again you have paid only a fraction of the price which you normally would pay. Well I am happy.
"
Review 16 for Siemens RAA20 Room Thermostat
Overall Rating: 
4 out of 5
4 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
4 out of 5
4 out of 5
Would you recommend this product? Yes
Overall Rating: 
4 out of 5
4 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
4 out of 5
4 out of 5
Good Value
1 Mar 2012
By MPJ09
, Raunds
" This is a good value thermostat with volt free contacts. A good one to keep in tha van. "
Review 17 for Siemens RAA20 Room Thermostat
Overall Rating: 
4 out of 5
4 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
4 out of 5
4 out of 5
Reliability: 
4 out of 5
4 out of 5
Would you recommend this product? Yes
Overall Rating: 
4 out of 5
4 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
4 out of 5
4 out of 5
Reliability: 
4 out of 5
4 out of 5
Simple Room Stat
22 Feb 2012
By TR4A
, Droitwich Spa
" Easy to fit, good build quality, excellent value for money.
Only down side is that it is quite proud of the wall, but I guess it is like that to get a good air flow.
"
Review 18 for Siemens RAA20 Room Thermostat
Overall Rating: 
4 out of 5
4 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
4 out of 5
4 out of 5
Reliability: 
4 out of 5
4 out of 5
Would you recommend this product? Yes
Overall Rating: 
4 out of 5
4 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
4 out of 5
4 out of 5
Reliability: 
4 out of 5
4 out of 5
Easy to install
25 Nov 2011
By prodger22
, Burton On Trent
" I was a little dubious not connecting the Neutral but works perfectly and very easy to install. "
Review 19 for Siemens RAA20 Room Thermostat
Overall Rating: 
3 out of 5
3 out of 5
Value: 
4 out of 5
4 out of 5
Features: 
3 out of 5
3 out of 5
Performance: 
3 out of 5
3 out of 5
Reliability: 
4 out of 5
4 out of 5
Would you recommend this product? Yes
Overall Rating: 
3 out of 5
3 out of 5
Value: 
4 out of 5
4 out of 5
Features: 
3 out of 5
3 out of 5
Performance: 
3 out of 5
3 out of 5
Reliability: 
4 out of 5
4 out of 5
A decent budget thermostat
14 Dec 2012
By NorfolkSparky
, Norfolk
" Basic but reasonably accurate. No option for 3rd wire connection "
Review 20 for Siemens RAA20 Room Thermostat
Overall Rating: 
3 out of 5
3 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
3 out of 5
3 out of 5
Performance: 
3 out of 5
3 out of 5
Reliability: 
3 out of 5
3 out of 5
Would you recommend this product? No
Overall Rating: 
3 out of 5
3 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
3 out of 5
3 out of 5
Performance: 
3 out of 5
3 out of 5
Reliability: 
3 out of 5
3 out of 5
Incorrect Spec: 6A not 10A
22 Nov 2012
By TheDoctor
, Edinburgh
" Upon opening it up, I find the excellent Siemens labelling inside, quoting it as 6(2.5)A, not 10A as quoted on this site.
Frankly I expected better - somewhat galling that this website lists the thermostat as 10A switching capacity, yet, the same item on the sister TRADEPOINT catalogue, shows it correctly as 6A. I needed c.8A.
So, I shall have to return it for a refund. Not happy. "
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