16 CFR Part 305, Appendix I
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
| Manufacturer's rated heating capacity(btu's/hr) | Range of HSPF2's |
|---|---|
| Low | High |
Single Package Units
Heat Pumps (Heating Function): All capacities | 6.7 | 8.4
Split System Units
| Heat Pumps (Heating Function): All capacities | 7.5 | 14.6 |
|---|---|---|
| Small-duct, high-velocity Systems | 6.1 | 7.5 |
Space-Constrained Products
Heat Pumps (Heating Function): All capacities | 6.3 | 6.5
[ 86 FR 57986, Oct. 20, 2021]