Enjoy endless hot water with the Suburban Nautilus On-Demand RV Water Heater. Say good-bye to waiting for water to reheat in a conventional tank. Showers and baths are best enjoyed slowly, so live free from the restraints of limited hot water supplies. Dishes and even the laundry can be done with an infinite supply of hot water whenever and wherever, simultaneously from every fixture.
With no storage tank to heat water, the Nautilus On-Demand RV Water Heater reduces weight and increases efficiency by only operating when the need for hot water arises. Weighing just 36 lbs. with the vent assembly, the Nautilus On-Demand RV Water Heater comes standard with a freeze protection mechanism and state-of-the-art 3-Try Direct Spark Ignition for safe and reliable operation.
• Exclusive 60,000-BTU two-stage self-modulating combustion system (MCS)
• Built-in freeze protection
• MCS monitors inlet water temperature and water flow, output water temperature, heat exchanger, and burner operation
• Instantaneously adjusts LP gas input for consistent and endless comfort regardless of hot water needs
• Only 36 lbs. installed
• Porcelain-lined steel tank for long life
• Anode rod to “absorb” electrolytical action
• Tank is pressure-tested twice to ensure integrity
Specs
Type: LP Gas
Ignition Type: Pilot and Direct Spark Ignition
BTU Level: 60,000 BTUs
Dimensions: 20″D x 12.5″W x 12.5″H
Additional Products May Be Needed For Installation
Thermostat Not Included
115140 Black Thermostat Control
115141 White Thermostat Control
Door Panel Not Included
115145 Suburban 6-Gallon Door Panel
115146 Suburban 10-Gallon Door Panel
115147 Atwood 6-Gallon Door (retrofit for tankless)
115148 Atwood 10-Gallon Door (retrofit for tankless)
Vent Cap Not Included
115142 1″ Cap for 0″-1″ wall thickness
115143 2″ Cap for 1″-2″ wall thickness
115144 3″ Cap for 2″-3″ wall thickness
Before You Order
Compare the 5581A model, 60,000 BTU rating, and listed dimensions with your installation requirements; verify vent assembly and other included components before ordering.
Frequently Asked Questions
What capacity and dimensions are listed?
The specifications list 60,000 BTU and dimensions of 12.5 inches high by 12.5 inches wide by 20 inches deep.
