Hi all, I am working on my Ph.D. about implementing DHW Heat Pumps in typical Ukrainian buildings and choose an eQUEST program for modeling but run into trouble with specifying the Heat Pump parameters and configuration of the system. The idea is to model the system with Primary HW storage (and Primary Heat Pump) and also add a temperature maintenance tank (and additional Temperature maintenance Heat Pump), but I cannot find any information on how to model it in the program. Also, since the climate in Ukraine is rather cold, I was interested in calibrating the system and adding the gas back-up for low outdoor temperature DHW service but found neither any in-program tutorial tips nor any information on the net about it. I will be very appreciative of any advice or answer!