Depending on how complicated that 2-wire bus is it may be cheaper (sub
=C2=
=A310)
to hookup a small MCU to act as an override on the bus blocking/
simulating=
/
passing commands from the thermostat.
All I can think of in the wireless range is these modules from maplin, with
a bit of tweaking it may be possible to get them to do the switching work
without a MCU
http://www.maplin.co.uk/Module.aspx?ModuleNo=3D267236
--=20
=E2=88=9A Matt Evans
=E2=88=9A Splat1
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