Suburban 5233A Water Heater (SW16DELC) 16 Gallon Model Name Breakdown SW-Suburban Water Heater 16- 16 Gallon D- 12 Volt DC Direct Spark Ignition Gas Heating System E- 120 Volt AC Heating Element L- 12 Volt Relay for Interior Operation of Electric Heating System C- Corded   A... See More