Hi, I’m new to this software and need some help. I’m trying to model a one-bedroom apartment as a single zone. It uses an advanced VRF system for heating and cooling, and a separate WaterHeater:Mixed for domestic hot water (DHW). I’m unsure how to include the water heater in the system. If anyone has experience with VRF systems for heating and cooling combined with a separate electric water heater for a building, please guide me.