Pretty new to Hestiapi and OpenHab for that matter. I think this issue may reside in OpenHab, but I am pretty new there too.
I sourced my own parts and put it together ( I didn’t want to wait until the end of the year :P) Everything is working fine, however my switches are backwards (On = off and off = on) and I am pretty sure it has to do with the SSRs I have. Should be a simple fix of reversing the GPIO high/low, but I do not know where to do that. In the bindings somewhere? I will continue to dig, but any insight would be much appreciated.
I really don’t recommend that change. If Pi freezes or reboots and never comes back (corrupted SD) your heating will stay on forever! Please consider sourcing the right components.