1. Regulations
  2. title 16
  3. chapter I
  4. part 305
  5. appendix AppendixD4

Appendix D4 - Appendix D4 to Part 305—Water Heaters—Instantaneous—Gas

Range Information

Capacity Range of estimated annual energy costs
(dollars/year) 		Capacity (maximum flow rate); gallons per minute (gpm) Natural gas
($/year) 		Propane
($/year) 		Low High Low High “Very Small”—less than 1.624305061 “Low”—1.7 to 2.7(*)(*)(*)(*) “Medium”—2.8 to 3.9144170291343 “High”—4.0 and over210253427511

(*) No data.

[88 FR 1136, Jan. 9, 2023]

AUTHORITY: 42 U.S.C. 6294.

SOURCE: 52 FR 46894, Dec. 10, 1987, unless otherwise noted.