Heating/Cooling Staging Calculator

Calculate optimal staging logic for multi-stage heating and cooling equipment.

Total number of heating or cooling stages.
Capacity of each stage (assumed equal).
Btu/h
Current heating or cooling load.
Btu/h
Load difference to trigger stage change (%).
%

Results

Stages Required-
Total Staged Capacity-Btu/h
Capacity Margin-%
References: ASHRAE Handbook - HVAC Applications, Chapter 47. Staging control for optimal efficiency and comfort.