This video challenges the long-standing myth that night setback consumes more energy during morning warm-up than it saves overnight. The featured case study demonstrated a 9% reduction in energy consumption, even though outdoor temperatures were lower during the setback period than during the comparison period without night setback. The results provide clear evidence that properly applied night setback can reduce heating energy while maintaining occupant comfort.
DX Cooling Opportunity
HVAC systems that mix fresh air and building return air to varying quantities for cooling purposes often have control logic comparing the total heat content of the outdoor to the total heat content of the return air.