Table 4 Summary of HVAC system types in U.S. schools based on the U.S. Energy Information Administration, Commercial Buildings Energy Consumption Survey
School Type | HVAC System Type | Heating | Cooling |
|---|---|---|---|
Primary School | Central-Forced-Air | 41% | 26% |
Ductless with Air Filter | 47% | 63% | |
Ductless without Air Filter | 12% | 10% | |
Secondary School | Central-Forced-Air | 43% | 35% |
Ductless with Air Filter | 41% | 54% | |
Ductless without Air Filter | 16% | 11% |