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Suburban Mfg 5186A Nautilus IW60 Tankless On-Demand LP Gas RV Water Heater 60,000 BTU

Manufacturer

Suburban Mfg

<h3>Suburban Mfg: Over 75 Years of RV Comfort Innovation</h3><p><strong>Suburban Manufacturing</strong>, an <a href="/7593-suburban-mfg">Airxcel brand</a> headquartered in Dayton, Tennessee, has been one of the most recognized names in the RV industry since its founding in 1947. What began as a small gas space heater company evolved into a powerhouse of RV comfort technology — a transformation driven by a single customer request to adapt a greenhouse heater for use in a motorhome. That spark of ingenuity set Suburban on a course that would define RV living for generations.</p><p>Throughout the late 1960s and beyond, Suburban's engineers pioneered some of the most important advances in RV appliance design: space-saving, horizontally vented gas heating systems, solid-state spark ignition systems, efficient DC furnace motors, and on-demand water heating. In 1998, Suburban became part of the Airxcel family of brands — the largest privately held supplier to the RV industry — further expanding its reach and resources while maintaining its deep roots in Dayton, Tennessee, where it operates a 300,000-square-foot manufacturing facility.</p><h3>A Complete Lineup for RV Comfort</h3><p>Today, Suburban is the go-to brand for RV owners who demand reliability and performance. Their <a href="/7593-suburban-mfg-water-heaters-201162">RV water heaters</a> are among the most trusted on the market, available in propane, electric, and combination models in a range of tank sizes — including their innovative Advantage Direct Fit line designed for easy replacement. For the galley, Suburban's <a href="/7593-suburban-mfg-stoves-cooktops-201021">stoves and cooktops</a> bring thoughtful engineering to compact RV kitchens, from traditional gas ranges to modern induction cooktops with glass tops that double as extra counter space when not in use.</p><p>Behind every Suburban appliance is a robust ecosystem of heating parts and accessories — including furnace gaskets, combustion air housings, igniter electrodes, thermocouples, and circuit boards — making it easy to service and maintain Suburban systems for years to come. The brand's commitment to quality means most products undergo rigorous testing before leaving the factory, and much of the product line is backed by a 2-year limited warranty.</p><h3>Innovation That Keeps Moving Forward</h3><p>Suburban has never been content to rest on its legacy. The brand introduced glass range tops to the RV world, giving campers the flexibility of a larger working surface. More recently, they launched the RV One — a patent-pending combination water heater and furnace unit engineered specifically for compact travel trailers and lightweight RVs. This all-in-one approach exemplifies Suburban's guiding philosophy: deliver maximum comfort while respecting the space and weight constraints unique to the RV lifestyle.</p><p>Whether you're replacing an aging water heater, upgrading your cook space, or sourcing a hard-to-find furnace part, Suburban Mfg delivers the quality, innovation, and reliability that RV enthusiasts have counted on for more than seven decades.</p>

Part Number

5186A
09/12/2036 7:03 AM
Sale Price

$658.21

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Product Details

The Suburban Mfg 5186A Nautilus IW60 is a tankless, on-demand LP gas water heater engineered specifically for RV use. Also referenced under part numbers 5286A, IW60, and 5581A, this unit delivers continuous hot water without a storage tank, eliminating the wait time and energy waste associated with conventional tank-style heaters.

Key Features:

  • 60,000 BTU Output: Exclusive 2-Stage Modulating Combustion System (MCS) self-modulates between 15,000–60,000 BTU/h to precisely match demand
  • Consistent Temperature Control: Microprocessor-controlled MCS monitors inlet water temperature and flow, output temperature, heat exchanger, and burner operation — instantaneously adjusting LP gas input to eliminate temperature fluctuations
  • On-Demand Operation: Activates only when hot water is needed, improving energy efficiency over traditional tank heaters
  • Temperature Range: Adjustable output from 95°F to 130°F maximum
  • Water Flow Range: Operates from 0.5 to 1.5 GPM inlet water flow
  • Dual Ignition: State-of-the-art 3-Try Direct Spark Ignition with Pilot backup for safe and reliable operation
  • Freeze Protection: Equipped with both powered and non-powered freeze protection for reliable performance in cold weather conditions
  • Durable Construction: Porcelain-lined steel heat exchanger with anode rod to resist electrolytic action and extend service life
  • Compact and Lightweight: Weighs just 36 lbs. with vent assembly; fits in tight RV compartments
  • Flexible Installation: Installs with or without an access door; door, frame, and vent cap are sold separately

The Nautilus IW60 runs on LP gas and is designed for straightforward installation in most RV applications. If replacing an existing water heater, a compatible retrofit access door kit and wall vent are required. A Control Center (sold separately) is also needed when replacing a different brand or model. Cross-reference part numbers: 5186A, 5286A, IW60, 5581A, ST-60.

Note: Access door/frame, thermostat control, and vent cap are not included and must be purchased separately. Comes with a 2-year manufacturer's warranty.

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