Worcester 9.24 Electronic Boiler Thermostat/Timer Question

[lexiekay]

Hi
Apologies in advance for my lack of knowledge! I have a Worcester 9.24 electronic boiler in my kitchen. It had a very old timer switch with no thermostat. I'm currently in the process of refitting the kitchen with a bit of help from my dad. He has disconnected the boiler while working on replumbing etc, and was planning on fitting a new thermostat and timer. He isn't sure though whether it should be a 2 wire or a 3 wire one. Can anyone tell me which would be the correct one to buy?
Thanks!

 

[lexiekay]

No one got any ideas? If the question doesn't make sense please let me know and I'll try to explain further...!

 

[45yearsagasman]

You could simply use any single channel time switch (which will require LNE connections) and a 2 wire battery operated stat, Honeywell dt90e for example, and make the connections between T2 and T3.
I hope this is the sort of info you require. You could go wireless for more money.

 

[Agile]

Easiest to use any two wire programmable thermostat.

Available from £15 and combine time and temp functions.

Tony