Quote:
...if Hijack could read the (theoretical) fan state


Needs to read the DS1721 confiburation/status register and examine bit 1 (POL), which represents Tcom/Tout.

Quote:
Hijack *could* read the temperature from the controller


Needs to read the DS1721 temperature register. Unless anyone feels the need for multiple temperatures, probably the easiest way to do things is to have a config.ini entry that determines whether the Empeg temperature is derived from the on-board thermostat or the DS1721.

I'd be happy to take an initial look at all this, no promisies yet though.
_________________________
Michael
Ex-owner of stolen empeg #030102741