Which Thermostat?
Discussion
I finally have gotten to the point where I need to sort out my central heating system 
I have a Worcester Bosch 240 Combi RSF boiler, currently running on an old digital timer and rads with thermostatic valves (which most the heads are missing off so run at full blast). At the moment I set the timer to come on at blasts throughout the day but obviously this is not the best way of doing it, and the house is never a stable temperature. I would like to run it off of a wireless thermostat.
How would I go about fitting one, and what types are best? Will I need a new timer as well?
All help appreciated as I really need to get this sorted out now but don't really know where to start or what to look for.
ETA
Here is a screen shot from the wiring diagram for my boiler
I have a Worcester Bosch 240 Combi RSF boiler, currently running on an old digital timer and rads with thermostatic valves (which most the heads are missing off so run at full blast). At the moment I set the timer to come on at blasts throughout the day but obviously this is not the best way of doing it, and the house is never a stable temperature. I would like to run it off of a wireless thermostat.
How would I go about fitting one, and what types are best? Will I need a new timer as well?
All help appreciated as I really need to get this sorted out now but don't really know where to start or what to look for.
ETA
Here is a screen shot from the wiring diagram for my boiler
Edited by AceOfHearts on Wednesday 20th February 06:42
Highly recommend the Honeywell CM927. Not the cheapest, but the best I've come across.
On the 240, there is a terminal near the bottom of the pcb with "room stat" or similar written above it, there should be a black wire linking the two terminals. This is where you would connect the switching part of a thermostat too.
If you do use a wireless stat, it will require a permanent 240VAC supply as well. This can be taken from the integral timers supply, which is connected to the pcb via a removable plug on the top left of the pcb.
On the 240, there is a terminal near the bottom of the pcb with "room stat" or similar written above it, there should be a black wire linking the two terminals. This is where you would connect the switching part of a thermostat too.
If you do use a wireless stat, it will require a permanent 240VAC supply as well. This can be taken from the integral timers supply, which is connected to the pcb via a removable plug on the top left of the pcb.
Thanks for your help, I have done a bit of reading up and have just ordered up a Honeywell CM921 which should be here mid next week. I had a look at th CM927 as well but since I work shifts and am about odd hours of the day, I thought I would save myself a tenner and do without the 7 day function which I wouldn't use anyways.
Blew my expected budget a little but £97 delivered is not too bad
Blew my expected budget a little but £97 delivered is not too bad
Another accolade for the Honeywell; simply brilliant.
Quite why people have fixed position stats is a bit of a mystery; I do tend to move mine from room to room though.
Pity that you didn't spend the extra tenner, but I know that you will be happy with what you have.
Another good thing I think, is radiator stats. I didn't really understand them until my heating engineer recommended and fitted them.
Keeps my motorcycles in the workshop warm as well.
Quite why people have fixed position stats is a bit of a mystery; I do tend to move mine from room to room though.
Pity that you didn't spend the extra tenner, but I know that you will be happy with what you have.
Another good thing I think, is radiator stats. I didn't really understand them until my heating engineer recommended and fitted them.
Keeps my motorcycles in the workshop warm as well.
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