Appendix D5 to Part 305—Water Heaters—Instantaneous—Electric
| Capacity | Range of estimated annual energy costs (dollars/year) | |
|---|---|---|
| Capacity (maximum flow rate); gallons per minute (gpm) | Low | High |
| “Very Small”—less than 1.6 | 82 | 90 |
| “Low”—1.7 to 2.7 | (*) | (*) |
| “Medium”—2.8 to 3.9 | (*) | (*) |
| “High”—4.0 and over | (*) | (*) |
| (*) No data. |
[88 FR 1136, Jan. 9, 2023]