Select all that apply. Consider two identical Residences: Residence A & Residence B are both located in the United States. All things are identical in both buildings, i.e. Gross Square Footage (GSF), the number of bedrooms, the Heat Recovery Ventilator's Efficiency Rating, Interior Setpoint Temperature, etc. Ventilation Calculations were done on both buildings for the purpose of System Sizing a Heating System. qvent for Residence A amounts to twice of qvent for Residence B. What can be inferred? Select one or more: a. Information on the Volume of the building's must be included to determine a response. b. Design Delta T is twice the value for Residence A. c. The insulation qualities of Residence A's envelope are superior. d. Residence A is located in a colder Climate Zone with a lower Design Temperature. e. Natural Air Changes per Hour (ACHnat) is less in Residence A