STSS Energy Management Control

Has anyone installed the STSS EMC? Looking for any feedback on best way to switck back and forth from Tarm to gas boiler.

Thanks,
Reggie

do you have an additional termovar valve at the storage tank with zone valve 1 end switch controlling circulator 1. I have the wiring diagram for that setup. I could mail you a copy if you pm me your address. I don't know otherwise how I would post it online. that would eliminate you having to buy the control. it's a pretty simple setup that switches back automatically to your backup heat when tank is depleted of stored heat. Also will not let your backup heat warm the storage tank.

Tarm-

Thanks for the feedback.