Suburban On Demand Water Heater, 60K BTU with 2-Stage MCS

Catalog Item # 115136

Enjoy endless hot water with Suburban’s 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 constraints 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. It uses an exclusive 60,000 BTU 2-Stage Modulating Combustion System (MCS) which instantaneously adjusts the propane gas input to provide consistent and endless comfort regardless of your hot water needs.   Weighs just 36 lbs. with the vent assembly and comes standard with a freeze protection mechanism and state-of-the-art 3-Try Direct Spark Ignition for safe and reliable operation. Exterior access panel, intake/exhaust vent and wall control all sold separately.


  • Exclusive 60,000 BTU 2-Stage Self Modulating Combustion System (MCS)
  • Built-in freeze protection
  • Only 36 lbs. installed
  • Replaces any 6, 10, 12 or 16 gal. tank model or any 6 or 10 gal. aluminum tank model
  • Two-year limited warranty

  • Technical Specifications

    34.5 lbs.

    Camper's Choice Rating

    Reviewer rating of 1 stars based on 1 reviews (1 Based on 1 Review)

    Add A Review

    Very Disappointed

    by JOHN TAYLOR KENT PHD – December 08, 2018
    1 out of 5 stars

    I am very disappointed in Surburban's engineering and quality control. I had written a lengthy review but the website lost it as

      Access panel selection is based on what make and size water heater this tankless unit is going to replace.
    • Suburban 6 gallon SKU#86821 (mfg#6271APW)
    • Suburban 10,12,16 gallon SKU#86822 (mfg#6272APW)
    • Atwood 6 gallon SKU#86819 (mfg#521126)
    • Atwood 10 gallon SKU#86820 (mfg#521132)

      Vent Caps are not included with the access door.
    • 1” for 0” to 1” wall thickness SKU#115142 (mfg#261616)
    • 2” for 1” to 2” wall thickness SKU#115143 (mfg#261617)
    • 3” for 2” to 3” wall thickness SKU#115144 (mfg#261618)

    by Camping World – October 24, 2018
    by Jason – October 22, 2018
    Dimensions: 12.5"H x 12.5"W x 20.5"D
    by Camping World – October 23, 2018
    by Travis S – September 27, 2018
    Water Flow Range: 0.5 to 1.5 GPM
    by Camping World – September 28, 2018

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