R/F Wireless Thermostat
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Discussion

theaxe

Original Poster:

3,571 posts

244 months

Monday 14th December 2009
quotequote all
The thermostat in our house is on the ground floor and we spend most of our time on the first floor. I've been thinking about getting a wireless thermostat so that we can control the tempertature from whatever room we're in.

I have some questions...

Is this the sort of thing that I need?
Do I just set the boiler to 'On' and then use the thermostat to control it?
Is the wiring difficult/standardised?

Any other advice would be appreciated.

Edited by theaxe on Monday 14th December 14:57

TooLateForAName

4,902 posts

206 months

Monday 14th December 2009
quotequote all
Thats the sort of thing. I've just fitted one.

Wiring standard, the 'base' needs the usual power L/N/E and the in/out thermostat wires. If you're intending to carry the wireless bit around then check the back - some are designed to be carried so are nice solid backs and with a cradle that you can wall mount, others like the danfoss I bought are designed to be fixed in position so the back of the woreless unit is open and needs to be screwed to the wall.

Ricky_M

6,618 posts

241 months

Monday 14th December 2009
quotequote all
Honeywell CM 927 is a nice programmable wireless programmable roomstat, really easy to use and it can be wall mounted or portable.

aberdeeneuan

1,410 posts

200 months

Monday 14th December 2009
quotequote all
Ricky_M said:
Honeywell CM 927 is a nice programmable wireless programmable roomstat, really easy to use and it can be wall mounted or portable.
We've just had one of these installed as part of the works to the house. Really good little unit, and the temperature can go up in .5 degree rather than 1 degree steps - sounds daft but makes a massive difference.

Ferg

15,242 posts

279 months

Monday 14th December 2009
quotequote all
Do you have thermostatic radiator valves?

theaxe

Original Poster:

3,571 posts

244 months

Monday 14th December 2009
quotequote all
Ferg said:
Do you have thermostatic radiator valves?
Yes but they're a bit rubbish. They seem to be effectively on or off.

Ferg

15,242 posts

279 months

Monday 14th December 2009
quotequote all
You need the thermostat in the space without one. You could just leave them all on full, but that's not good in efficiency terms.

SLacKer

2,622 posts

229 months

Monday 14th December 2009
quotequote all
I have the exact setup you describe.

I got a Sunvic from B&Q and installed it myself was easy to fit.

http://www.diy.com/diy/jsp/bq/nav.jsp?action=detai...

7 Sevens

658 posts

243 months

Tuesday 15th December 2009
quotequote all
In respect to the B&Q unit above can I clarify my thinking on this.

- Does the Solid white box part replace the traditional dial thermostat in the hall way?
- Then you take the mobile part to whatever room and it detects the temperature in there and sends the signal back?

I have a problem upstairs in a large bedroom. The Rad is the correct size for the room but it is the coldest room upstairs, some 2 degrees colder. So when the Hall Thermostat is happily sitting on 20c, the other rooms are all 20c I still have a cold room. So at the moment I need to turn the good rooms down and put the hall way thermostat up to say 24 to get an increase in the big room.

I'm thinking I could take the mobile part into the big room and control the temperature there.

Ferg

15,242 posts

279 months

Tuesday 15th December 2009
quotequote all
The system needs balancing.

SLacKer

2,622 posts

229 months

Tuesday 15th December 2009
quotequote all
7 Sevens said:
In respect to the B&Q unit above can I clarify my thinking on this.

- Does the Solid white box part replace the traditional dial thermostat in the hall way?
- Then you take the mobile part to whatever room and it detects the temperature in there and sends the signal back?

I have a problem upstairs in a large bedroom. The Rad is the correct size for the room but it is the coldest room upstairs, some 2 degrees colder. So when the Hall Thermostat is happily sitting on 20c, the other rooms are all 20c I still have a cold room. So at the moment I need to turn the good rooms down and put the hall way thermostat up to say 24 to get an increase in the big room.

I'm thinking I could take the mobile part into the big room and control the temperature there.
That is exactly how it works. I do the same thing and use the thermostat in different rooms and I have thermostatic valves but they are only part of the solution.

With the stat downstairs and hot air rising the stat would need to be set several degrees below what we wanted upstairs which was not satisfactory. It is a pity they did not run a thermostat upstairs when they built it but the rf device really sorted it out for us.

7 Sevens

658 posts

243 months

Wednesday 16th December 2009
quotequote all
Thanks for both your comments. Rad's have been balanced but I'll perhaps have someone else check.

The room in question has a vaulted ceiling so whilst the Rad is up to spec I have less roof space above which I think is causing an issue. It's all insulated as well.