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Regular Retail price $849.99

About this product

  • 1440-watt Incoloy electric element for use with campground power
  • High recovery 12,000 BTU/hour
  • Porcelain steel tank with foam insulation
  • Replaceable Anode Rod Provides Further Corrosion Protection
  • FAST Recovery Rate: Fast Recovery Means More Hot Water And Fewer Cool Water Cycles
  • Convenient Exterior Gas Line Connection
  • One-Piece, Die-Formed Metal Control Housing Protects Controls From The Weather
  • Copolymer Insulation Jacket Specially Fitted To The Tank To Retain Heat
  • Access door and frame are easily installed

Note: Door, frame kit & indoor switch are sold separately. You MUST purchase both the Water Heater and Door for a complete system! These are sold as separate part numbers. Competing manufacturers assemblies are not interchangeable. To ensure accuracy please text or call one of our parts representatives. Please have your water heater model number ready.

Product Overview

The Suburban SW12DE Gas Water Heater provides reliable service and easy maintenance. This high-recovery 12,000 BTU/hour model features a porcelain steel tank, foam insulation, large diameter drain, and replaceable anode rod to absorb corrosive electrolysis action. The one-piece, die-formed housing protects controls and connections yet offers easy access. Fits cut-out openings of prior models. Access door and frame are easily installed on any type RV side.

The SW12DE Model also lets you take advantage of campground or generator power to heat your water with the 1440-watt Incoloy electric element. The Incoloy electric element provides a recovery rate of 6.1 gallons per hour. For a faster recovery rate of 16.2 gallons per hour, use both gas and electric simultaneously.

The water heater gas ignition is controlled by a switch mounted on the inside of your RV. Switch is sold separately.

Note: Gas appliances should be installed and/or serviced by a qualified service technician.
  • Uses A Porcelain-Lined, Steel Water Heater Tank With An Anode Rod To "Absorb" The Electrolytical Action - Just Like Your Water Heater At Home
  • Pressure Tested Twice During The Manufacturing Process To Ensure Its Integrity
  • A 1440 Watt Incoloy Electric Element Provides A Recovery Rate Of 6 Gallons Per Hour
  • Features An Indoor Mounted Switch Which Controls The Water Heater Ignition And Operation (sold separately)
  • Limited 2 Year Warranty

Model Name Breakdown

  • SW-Suburban Water Heater
  • 12- 12 Gallon
  • D- 12 Volt DC Direct Spark Ignition Gas Heating System
  • E- 120 Volt AC Heating Element

Product Specifications

Technical Details

Product Height

Product Width

Product Depth


BTU Level


Power Consumption

Recovery Rate - Electric

Recovery Rate - Gas

Installed Weight (dry)

16.22 inches

16.22 inches

22.5 inches

12 gallons

12,000 BTU

110 volts

1440 watts

6.1 gallons/hour

10.1 gallons/hour

48 pounds

Additional Information



Item Model Number

SKU Number

Manufacturer Warranty

Manufacturer Warranty Term



SW12DE, 5247A, 5147A, 5147F


2 years

Door for Suburban Water Heater - 10, 12 and 16 Gallon

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Suburban D, DE & DEL ON/OFF Switches

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Water Heater Essentials

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