Suburban LP Water Heater Model Number SW10P 5122A - S6U5122A

Suburban LP Water Heater Model Number SW10P 5122A - S6U5122A

The Suburban Advantage line of RV water heaters includes high recovery gas, gas/electric combination, gas/electric/motor aid and tankless, continuous models with sizes and features to match the requirements of almost any RV. Tank capacities include 4, 6, 10, 12 and 16 gallon models and tankless models provide up to 60,000 BTUH of endless hot water. Quality, efficiency, features, service, and selection - for more than 30 years, these have been the gold standard of Suburban water heaters. Take ADVANTAGE of Suburban’s expertise and reliability with longer lasting residential style tank and tankless water heaters.
Porcelain-Lined Steel Tank For Long Life
Replaceable Anode Rod Provides Further Corrosion Protection
Fast Recovery Rate
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

Specifications

What our Experts Think

• Trusted RV Hot Water Solution: A classic LP gas-powered water heater with a 10 gallon capacity and 12,000 BTU input, engineered for reliable hot water in RVs and trailers.

• Durable Construction: Porcelain-lined steel tank with a replaceable anode rod helps resist corrosion and extends service life — a key factor for long road use.

• Fast Recovery: Efficient heat transfer and insulation mean quicker hot water recovery between uses, reducing cold water cycles and improving everyday usability.

• Simple, Reliable Ignition: Pilot ignition system is easy to operate and proven in RV environments, offering dependable performance without complex electronics.

• Heat Retention: Copolymer insulation jacket and weather-protected control housing minimize heat loss and increase overall efficiency.

Q&A

Q: What is the Suburban SW10P 5122A?
A: A 10-gallon LP gas (propane) water heater built for RVs and campers, offering reliable hot water on the road with a rugged design.

Q: What fuel and ignition type does it use?
A: Runs on liquid propane (LP) with a simple, dependable pilot ignition system.

Q: What’s the capacity and power?
A: 10 gallon capacity with 12,000 BTU input and a fast recovery rate (~10.1 gallons/hr), so hot water is ready quickly.

Q: How durable is it?
A: Porcelain-lined steel tank with a replaceable anode rod protects against corrosion and extends tank life.

Q: What are the dimensions?
A: Roughly 16.2″ W × 16.2″ H × 20.5″ D — compact for most RV cutouts.

Q: Is installation and maintenance easy?
A: Designed for RV use with exterior gas connection and weather-protected controls; professional installation recommended. 

Q: Who should buy this?
A: RV, camper, and motorhome owners wanting a dependable, propane-powered hot water solution on the go.

Maintenance Tips

• Annual Flush & Drain: Drain and flush the tank at least once a year to remove sediment and improve efficiency.

• Inspect & Replace Anode Rod: Check the anode rod regularly and replace it if heavily corroded to protect the tank from rust.

• Check for Leaks: Inspect all gas and water connections for tight seals; fix any leaks promptly to avoid damage.

• Clean Vent & Burner Area: Keep vents and the burner chamber clear of debris to ensure proper combustion and airflow.

• Test Pressure Relief Valve: Lift the pressure relief valve lever annually to confirm it opens and reseals correctly.

• Winterize Properly: If storing in freezing temps, drain completely and use a bypass kit to protect internal components.

• Safety First: Always turn off LP gas supply before performing maintenance.