5239A Suburban SW6DE – 6 gallons; 12,000 BTU/h 

The 5239A Suburban SW6DE is a 6‑gallon, 12,000 BTU/h RV water heater that combines LP‑gas Direct Spark Ignition (DSI) with a 120‑volt electric heating element for dual‑mode performance. This hybrid design gives RV owners faster recovery, flexible energy use, and reliable hot‑water availability whether running on propane, shore power, or both.

Built on Suburban’s porcelain‑lined steel tank platform, the SW6DE includes a replaceable anode rod for long‑term corrosion protection and durability. The tank is pressure‑tested twice during manufacturing for structural integrity. With a compact 12.69" × 12.69" × 19.19" footprint, it fits standard 6‑gallon Suburban cutouts and is a direct replacement for earlier SW6DE and SW6D models.

The gas system provides strong 12,000 BTU/h heating output, while the 1440‑watt electric element adds an additional recovery option. Combined gas/electric operation delivers fast hot‑water replenishment—ideal for showers, dishwashing, and multi‑person use. All serviceable components are front‑accessible for technician‑friendly maintenance.