Skip to product information
1 of 1


Suburban ST-42 Tankless Water Heater 42,000 BTU 5381A w/ Black Door & Control Center

Suburban ST-42 Tankless Water Heater 42,000 BTU 5381A w/ Black Door & Control Center

Regular price $389.99 USD
Regular price $439.99 USD Sale price $389.99 USD
Sale Sold out
Shipping calculated at checkout.
The Suburban ST-42 Tankless Water Heaters provide an endless supply of hot water at a controlled temperature as set by the RV owner. The tankless feature saves energy by only engaging the burners when water is needed…be it for a hot shower, clean dishes or for hosing off after a day at the beach. The unit comes ready for set-up with an included wall mount digital control center and black door. Designed with a wide array of safety & protection features.


  • Flame Out Protection is a safety feature that will cut gas the supply immediately due to low propane pressure or burner malfunction
  • Scald Protection is managed through an internal high temperature kill switch to protect against a thermostat malfunction
  • Max temperature of 131° F
  • A child lock prevents outlet temperatures more than 113° F
  • Automatic Fan Monitoring cuts gas supply should the air flow or combustion air supply be interrupted
  • Active Freeze Protection from unexpected low temperatures when power and propane are available
  • Pressure Release Safety Valve
  • Voltage Protection shuts down the unit if low/high or overcurrent voltage is detected


Capacity: 0.5 gallons - continuous

12 VDC

Gas Power

Installed Weight (dry): 23.5 pounds\

Dimensions 13 1/8” x 13 1/8” x 13"
BTU/h Inputs 42,000

1-Year with The RV Surplus

View full details

Customer Reviews

Be the first to write a review