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  • Suburban Advantage RV Tank Water Heater SW6DE - 6 gallon Porcelain Lined Steel Tank with Direct Spark Ignition (DSI) and Incoloy Electric Element (5239A)
  • Suburban RV ProductsSuburban
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Suburban Advantage RV Tank Water Heater SW6DE - 6 gallon Porcelain Lined Steel Tank with Direct Spark Ignition (DSI) and Incoloy Electric Element (5239A)

4.6 out of 5 stars (3,336)
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Size: 6 Gallon
Style: Direct Spark Ignition & Incoloy Electric Element
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About this item

  • DURABLE CONSTRUCTION: Engineered with a porcelain-lined steel tank, the Suburban 6 Gallon Tank Water Heater is designed for durability, mimicking the longevity of residential tank water heaters, ensuring years of reliable hot water.
  • ADVANCED CORROSION PROTECTION: Equip with a replaceable anode rod and this water heater provides enhanced protection against tank corrosion. The anode rod also doubles as a drain, simplifying maintenance and extending the lifespan of the unit.
  • FLEXIBLE POWER OPTIONS: Featuring an optional electric element, this allows you to utilize campsite or generator power for heating water, offering unmatched versatility.
  • EXCLUSIVE HEAT TRANSFER TECHNOLOGY: Suburban's exclusive flue tube design slows the combustion process, optimizing heat transfer and ensuring the water in the tank heats efficiently, saving energy and providing hot water faster.
  • SPECIFICATIONS: Product Dimensions - 12.69" x 12.69" x 19.19"; Cutout Dimensions - 12.75" x 12.75" x 19.19". BTU/h - 12,000. Optional electric element input - 1,440. Recovery rate electric only (Gallons/Hour) - 6.1; Recovery rate gas only (Gallons/Hour) - 10.1. Backed by a 2-year limited warranty and a 3-year tank limited warranty.
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This item: Suburban Advantage RV Tank Water Heater SW6DE - 6 gallon Porcelain Lined Steel Tank with Direct Spark Ignition (DSI) and Incoloy Electric Element (5239A)
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From the manufacturer

suburban direct spark ignition water heater
porcelain lined long lasting water heater with fast recovery rate suburban rv
recover rate of 6 gallons per hour
heat transfer tech
travel in comfort

Product information

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Suburban Advantage RV Tank Water Heater SW6DE - 6 gallon Porcelain Lined Steel Tank with Direct Spark Ignition (DSI) and Incoloy Electric Element (5239A)


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Product Description

The best water heaters on the road today, Suburban's line of water heaters includes high recovery gas, gas-electric and motor aid models with sizes and features to match the requirements of almost any RV. Heated water attacks all metals, but not porcelain. That's why Suburban uses a porcelain-lined, steel water heater tank with an anode rod to "absorb" the electrolytical action - just like your water heater at home. In fact, when a Suburban porcelain-lined tank is properly maintained, it saves the owners the cost of premature replacement. In addition, every Suburban tank is pressure tested twice during the manufacturing process to ensure its integrity. Fast recovery means more hot water and fewer cool water cycles. Six gallon Suburban gas water heaters feature 12,000 BTUH input and a recovery rate of 10.2 gallons per hour - that's the fastest in the industry. The insulation is available for this product. Also light indicator is available for this product.

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Customer reviews

4.6 out of 5 stars
3,336 global ratings
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Customers say

Customers find the water heater performs well, with one noting it works even on very cold nights, and appreciate its easy installation as a DIY project. Moreover, the unit fits perfectly in travel trailers and serves as an exact replacement for old units, including those that are 20 years old. Additionally, they praise its heating performance, with one mentioning it maintains temperature even in cold weather, and consider it good value for money. However, several customers report issues with leaks, particularly noting problems with welds.
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215 customers mention performance, 187 positive, 28 negative
Customers find that the water heater performs well, with the electric element and AC heating element working fine, and one customer noting it functions effectively even on very cold nights.
Replaced a rusted out unit in my 5th wheel, works great! Easy installation. Update-after 15 months, the tank is now leaking....Read more
...be re installed, does not come with water fittings on new tank, but worked great , took about an hour to remove old tank & install new oneRead more
...I use now on electric mode and works perfectly. Of course my old one was not porcelin lined so now I have a better one. I think it will outlive me....Read more
...Installation was standard and it works well. The water is super hot!Read more
203 customers mention installation, 177 positive, 26 negative
Customers find the water heater easy to install, describing it as a do-it-yourself project that works great and is simple to hook up, with one customer mentioning successful installation in a 2015 Keystone Sprinter.
Fit perfectly in my 2014 wildwood heritage glen! Easy to install and works so good! Shower last 20-25 mins depending on how much I turn the hot on!...Read more
I bought this last your and just finally installed, easy install, everything matched up correctly but it comes on just like it should both electric...Read more
...water heater came packaged well enough to go through UPS also very easy to install was missing a couple wires for connections but was able to remove...Read more
...It is a exact suburban Product perfect fit for this model. Easy installation however, the water is not quite as hot as the previous model....Read more
141 customers mention quality, 128 positive, 13 negative
Customers are satisfied with the water heater's quality, describing it as a great 10-gallon unit.
...Bottom Line: Great Product, but do give it a very close once-over inspection prior to installation, to verify that all the screws are tight, and no...Read more
Perfect replacement and half the price of the RV places!!Read more
Very satisfied with the water heater, looks to be good quality, was straight forward in installation, and happy to support my fellow Tennesseans in...Read more
Good product, advertises with cover but does NOT come with a cover. Horrible directions unless you can read an electrical schematic.Read more
103 customers mention fit, 90 positive, 13 negative
Customers find that the water heater fits perfectly, particularly in travel trailers, with one customer noting that the relay component aligns well with pre-drilled holes.
We bought as a replacement for our old water heater in our RV. Perfect fit. I installed it myself. Easy installation. Works great....Read more
Wow!! This was easy and fast to install. It fit perfectly. We used it this weekend and it works perfectly, providing us fast ... very hot water!!...Read more
Installed this 10 gallon in place of a Suburban 12 gallon and it's an exact fit so install was about 1/2 hour other than caulking the cover etc....Read more
...cold and hot water fittings and redo plumbing, other than that, great fit! Worked great first time, no problems....Read more
91 customers mention replacement, 84 positive, 7 negative
Customers are satisfied with the water heater as a replacement, noting it is an exact match for factory-installed units, including those that are twenty years old.
Exact replacement for what was in my trailer. With proper maintenance (winterizing, anode replacement) should last many years.Read more
...This was a direct replacement and only took a little offer 1 hour to install. Note, you have to use you old door. Work great so far.Read more
Good replacement for my old oneRead more
This product was an exact replacement for the water heater that I removed from my camper. It was easy to install and no modifications were needed....Read more
84 customers mention heating performance, 69 positive, 15 negative
Customers are satisfied with the water heater's performance, noting that it heats quickly and maintains a consistent temperature, with one customer mentioning it performs well even in very cold weather.
hot water... in so little of time.Read more
Hot water heaterRead more
...It's working great, plenty of hot water...Read more
No problems installing, works great so far, lots of hot water!Read more
79 customers mention value for money, 71 positive, 8 negative
Customers find the water heater to be a great value, saving them money, with some noting it's cheaper to install themselves.
Great Product for a Great Price, along with Fast shipping. A+++Read more
A good price and shipped quickly. My rv installer recommended going through Amazon as he said the price was better (true!)...Read more
This was the best price we found. We saved hundreds of dollars compared to a dealership purchase. It was an exact model model replacement....Read more
Great value and fast shipping.Read more
55 customers mention leakage, 13 positive, 42 negative
Customers report issues with the water heater leaking, particularly noting problems with welds and the burner tube. One customer mentions water spraying from a cracked fitting, while another notes that the overflow valve drips water onto the face plate.
The heater failed after 11 months. The tank started leaking. I can't contact 6th street supply. I don't recommend buying from them.Read more
I bought this unit in 2023 and in not even 2 years it’s leaking, can’t get them to warranty it.Read more
...So 8 Anodes and tank Is leaking and rusted out March 6th 2025.Read more
...I was very happy when I turned on the water and found no leaks, and when tested, both the gas and electric heat elements worked perfectly.Read more
Perfect Fit
5 out of 5 stars
Perfect Fit
Exact replacement ! Perfect fitment and easy to install.
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Top reviews from the United States

  • 5 out of 5 stars
    Best water heater for your RV hands-down
    Reviewed in the United States on March 28, 2026
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    Reliable, great water, flow, easy to install, cool appearance, great temperature control, water temperature is perfect

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  • 5 out of 5 stars
    Good dependable unit
    Reviewed in the United States on July 26, 2025
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    This water is exactly the same as the one I was replacing, The old one lasted 19 years and I hope that this on lasts that long. It was a DIY installation. It took 3 hours to get the old one out and about 1 hour to install the new one. I took pictures of the DC wiring so that I could get it right. The only issue I had was with the DC wiring. It would make it so much easier if they would make the 3 DC wires about 6 inches longer. it is very tight quarters to work in that part of the installation. I would recommend adding a 6 inch extension to each wire before sliding it in place.

    6 people found this helpful
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  • 5 out of 5 stars
    Good quality
    Reviewed in the United States on May 1, 2026
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    Came two days early and it was package tightly and had no problems with installation.

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  • 5 out of 5 stars
    good value and has held up well
    Reviewed in the United States on December 12, 2025
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    good quality, works well, fit exactly good volume

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  • 4 out of 5 stars
    Water heater pressure valve leaking already
    Reviewed in the United States on October 9, 2025
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    The water heater works great and replaced the Atwood I had very easy. The problem was getting the water line adapters that screw into tank not to leak, and after 5 months of use the water pressure blow off valve went out and started leaking already.

    One person found this helpful
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  • 5 out of 5 stars
    Perfect Fit
    Reviewed in the United States on May 20, 2026
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    Exact replacement ! Perfect fitment and easy to install.

    Perfect Fit

    Exact replacement ! Perfect fitment and easy to install.

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  • 5 out of 5 stars
    Works; Bad Quality Control
    Reviewed in the United States on December 18, 2020
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    This was my 1st installtion of a Water Heater, replacing exisiting one on my Lance Truck Camper (due to age).

    Prior to installing, I gave the unti a once over and found the following defects:

    -Aprox 6 stripped screw holes (In each case I "fixed" the hole by dis-assemblying whatever was attached there, then used a Center Punch around the hole's edge to "close" it back up slightly, so that the screw could get a "bite")

    -Cut Insullation on the Large Red Wire that goes to the controller (This is a packaging issue, as the sharp sheet metal edges of the unit are Pressing Against the Wires during Shipment). I simply repaired this using Shrink Tape, yet just the same this sort of defect should not occur)

    Another problem I had (and not a bad reflection on the mfr) is that the unit did not simply "Drop In" to replace the former one (which was Same, but without the Electric Element). The new unit has a Sheet Metal Box to house the 110V Connection to RV, yet there simply was No Space to accomodate this new feature.. The easy fix was to Remove the Box, and make the connection elsewhere (minus box); no big deal, but glad that I was not in a rush to complete the installation.

    Performance is Great!... heats up Fast, using only gas or electric, or faster still using both. I like it!

    Bottom Line: Great Product, but do give it a very close once-over inspection prior to installation, to verify that all the screws are tight, and no obvious damage.

    29 people found this helpful
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  • 5 out of 5 stars
    Hot water tank/make sure you get electric and propane if you need it.
    Reviewed in the United States on May 13, 2026
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    Nice tank, fast delivery! Will do buisness again!

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Product Summary: Suburban Advantage RV Tank Water Heater SW6DE - 6 gallon Porcelain Lined Steel Tank with Direct Spark Ignition (DSI) and Incoloy Electric Element (5239A)

From Suburban

4.6 out of 5 stars, 3,336 ratings

Customer reviews

100+ bought in past month

Price

One-time purchase: $499.99

One-time purchase: $505.00

Purchasing options

Other sellers

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About this Item

  • DURABLE CONSTRUCTION: Engineered with a porcelain-lined steel tank, the Suburban 6 Gallon Tank Water Heater is designed for durability, mimicking the longevity of residential tank water heaters, ensuring years of reliable hot water.
  • ADVANCED CORROSION PROTECTION: Equip with a replaceable anode rod and this water heater provides enhanced protection against tank corrosion. The anode rod also doubles as a drain, simplifying maintenance and extending the lifespan of the unit.
  • FLEXIBLE POWER OPTIONS: Featuring an optional electric element, this allows you to utilize campsite or generator power for heating water, offering unmatched versatility.
  • EXCLUSIVE HEAT TRANSFER TECHNOLOGY: Suburban's exclusive flue tube design slows the combustion process, optimizing heat transfer and ensuring the water in the tank heats efficiently, saving energy and providing hot water faster.
  • SPECIFICATIONS: Product Dimensions - 12.69" x 12.69" x 19.19"; Cutout Dimensions - 12.75" x 12.75" x 19.19". BTU/h - 12,000. Optional electric element input - 1,440. Recovery rate electric only (Gallons/Hour) - 6.1; Recovery rate gas only (Gallons/Hour) - 10.1. Backed by a 2-year limited warranty and a 3-year tank limited warranty.

Product Description

The best water heaters on the road today, Suburban's line of water heaters includes high recovery gas, gas-electric and motor aid models with sizes and features to match the requirements of almost any RV. Heated water attacks all metals, but not porcelain. That's why Suburban uses a porcelain-lined, steel water heater tank with an anode rod to "absorb" the electrolytical action - just like your water heater at home. In fact, when a Suburban porcelain-lined tank is properly maintained, it saves the owners the cost of premature replacement. In addition, every Suburban tank is pressure tested twice during the manufacturing process to ensure its integrity. Fast recovery means more hot water and fewer cool water cycles. Six gallon Suburban gas water heaters feature 12,000 BTUH input and a recovery rate of 10.2 gallons per hour - that's the fastest in the industry. The insulation is available for this product. Also light indicator is available for this product.

Options Available

Size

  • 6 Gallon
  • 10 Gallon
  • 12 Gallon

Style

  • Direct Spark Ignition, Incoloy Electric Element & 12VDC Relay
  • Direct Spark Ignition
  • Direct Spark Ignition & Incoloy Electric Element
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Important Information

Wattage

1440 watts

Bulb Voltage

12 volts

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