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Suburban 12-Gallon RV Water Heater, DSI & Electric

$743.91 on Amazon.com (as of October 9, 2026, 11:39 PM EST) View details ↗

Upgrade your recreational vehicle's comfort with the Suburban SW12DE 12-Gallon RV Water Heater, engineered to deliver reliable hot water wherever your travels take you. Designed with a durable porcelain-lined steel tank, this unit mimics the longevity of residential water heaters to ensure dependable performance over years of use. Advanced corrosion protection is provided by a built-in replaceable anode rod, which also functions as a convenient drain to simplify routine seasonal maintenance and extend the lifespan of the equipment.

Enjoy exceptional versatility and efficiency on the road thanks to flexible power options and exclusive heat transfer technology. The unit allows you to utilize campsite electrical hookups or generator power alongside its gas capabilities. Meanwhile, the specialized flue tube design deliberately slows the combustion process to maximize heat transfer efficiency, ensuring your water heats faster while conserving energy.

Capacity12 Gallons
Product Dimensions16.22″ x 16.22″ x 22.25″
Cutout Dimensions16.38″ x 16.38″ x 22.25″
Gas Input12,000 BTU/h
Electric Element Input1,440 W
How does the anode rod protect the water heater tank?
The replaceable anode rod absorbs the electrolytical action to provide enhanced protection against tank corrosion.
What is the purpose of the exclusive flue tube design?
The specialized flue tube slows down the combustion process to optimize heat transfer, ensuring water heats efficiently.
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