Hi all, I have developed an EnergyPlus house model using BEopt. I am trying to use a simplified HVAC model for the optimization purpose. Though the model may not give exact result as detailed EnergyPlus model, I am using this model for optimization only. For the model, Equivalent thermal resistance (R) and equivalent thermal capacitance (C) of the house is required. How do we estimate roughly, the parameters R and C. The model of heater when on is The model of heater when off is