16 CFR Appendix D1 to Part 305 - Water Heaters—Gas

Range Information

Capacity (first hour rating in gallons)	Range of estimated annual energy costs (dollars/year)
	Natural gas ($/year)		Propane ($/year)
	Low	High	Low	High
“Very Small”—less than 18	(*)	(*)	(*)	(*)
“Low”—18 to 50.9	162	172	(*)	(*)
“Medium”—51 to 74.9	179	235	361	476
“High”—75 and over	227	336	460	679

(*) No data.

[88 FR 1136, Jan. 9, 2023]