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My problems with the controller are that it is only one day, only 2 on/offs and the hot water and heating must run on the same time settings. I thought i could use a programmable stat to control the heating leaving the controller to time the hot water. Take your point that wired may be more...

I've got a Worcester Heatslave 20/25 with a ST699 controller and am thinking of something more economical to control it. I was thinking a wireless programmable thermostat to save wiring and the need to change the controller. So my questions, are any suggested brands? Do i need to wire the...