Regulations last checked for updates: Nov 22, 2024

Title 16 - Commercial Practices last revised: Nov 20, 2024
Appendix Appendix D3 - Appendix D3 to Part 305—Water Heaters—Oil

Range Information

Capacity Range of estimated annual
energy costs
(dollars/year)
First hour rating Low High
“Very Small”—less than 18(*)(*)
“Low”—18 to 50.9(*)(*)
“Medium”—51 to 74.9(*)(*)
“High”—75 and over625686

(*) No data.

[88 FR 1136, Jan. 9, 2023]
authority: 42 U.S.C. 6294.
source: 52 FR 46894, Dec. 10, 1987, unless otherwise noted.