Wireless room thermostat

swagman

When originally installed some years ago, the room thermostat for the whole house was fitted in the living room. The result was that the rest of the house became far too cool, as all the heating went off when the living room reached temperature.

Then it was moved to the hall, but here it is opposite a radiator, so now the hall heats and the living room is too cool!

Moving the room thermostat again would involve considerable work to re-route the wiring, but is there some way in which a wireless thermostat could be used?

Could the receiver unit of a wireless thermostat be fitted to the wiring at the point where the existing thermostat has been, with the wireless thermostat sender being placed in a more suitable location?

There are three wires to the existing thermostat - live neutral and a yellow wire. Any comments will be appreciated.

Simon_M_2

swagman wrote: »

When originally installed some years ago, the room thermostat for the whole house was fitted in the living room. The result was that the rest of the house became far too cool, as all the heating went off when the living room reached temperature.

Then it was moved to the hall, but here it is opposite a radiator, so now the hall heats and the living room is too cool!

Moving the room thermostat again would involve considerable work to re-route the wiring, but is there some way in which a wireless thermostat could be used?

Could the receiver unit of a wireless thermostat be fitted to the wiring at the point where the existing thermostat has been, with the wireless thermostat sender being placed in a more suitable location?

There are three wires to the existing thermostat - live neutral and a yellow wire. Any comments will be appreciated.

Hi, I fitted one for a neighbour. It had two components, the wireless room stat and a reciever. The receiver was wired directy into the boilers control panel. Job took me about 20 mins. Hope this helps. Regards Simon

EliteHeat

No, it cannot. The receiver requires live, neutral, common and normally open connections - so four wires. It might be possible to cross the live to the common and use a sleeved earth as the normally open wire (switched live) if you do not require volt-free switching, but I would not advise it.

On the other hand, it can be fitted anywhere close to either the boiler or the wiring centre, depending on what sort of system you have.

globalds

there is an old thread here
http://forums.moneysavingexpert.com/showthread.html?t=662917

swagman

EliteHeat wrote: »

No, it cannot. The receiver requires live, neutral, common and normally open connections - so four wires. It might be possible to cross the live to the common and use a sleeved earth as the normally open wire (switched live) if you do not require volt-free switching, but I would not advise it.

On the other hand, it can be fitted anywhere close to either the boiler or the wiring centre, depending on what sort of system you have.

Thanks. Is this a diy job - ie comes with clear wiring instructions? If not, what might be a typical price? The system is a condensing oil boiler (not combi) with wiring centre in the kitchen, a Honeywell ST6400C programmer and a Honeywell 3 position diverter valve.
Thanks again.

EliteHeat

swagman wrote: »

Thanks. Is this a diy job - ie comes with clear wiring instructions? If not, what might be a typical price? The system is a condensing oil boiler (not combi) with wiring centre in the kitchen, a Honeywell ST6400C programmer and a Honeywell 3 position diverter valve.
Thanks again.

An hours labour for a heating engineer - note, not a plumber.