I’ve spent days researching this but don’t feel confident that what I’ve seen will do what i want, so I was hoping that someone here might point me in the right direction.
I’ve got an old basic combi-boiler with mechanical 24-hour timeclock without a room thermostat. I’d like to buy some off-the-shelf hardware to control it via openhab, that fulfills the following wife-specified (always important :P) requirements.
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it can be controlled from Openhab, using either wifi or z-wave (both of which I use currently, so preferred) or another networking method.
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it has a 24 hour timeclock (as minimum, 7 day is preferred) with room thermostat that doesn’t stop working if its wireless connection goes down.
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the timeclock &/or thermostat &/or boiler controller can be over-ridden to have heat on demand (perhaps with a one-hour boost) as required by the wife, by pushing a button on the hardware.
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the thermostat & time clock settings can be over-ridden from openhab, so that the heating comes on when the openhab rules say so.
I thought this would be easy but the more I look the more confused i am. All suggestions gratefully received.
Thank you in advance.