SKU: 29074184527

Raritan 20-Gallon Water Heater w/Heat Exchanger - 240V

Sale price$651.62 Regular price$724.02
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Ships within 48 hours · Estimated delivery Aug 23 - Aug 28

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Description

Raritan 20-Gallon Water Heater w/Heat Exchanger - 240V20 Gallon Water Heater with Heat Exchanger 240V A marine water heater is simply a small, insulated tank downstream of the pump. You must have a pressurized water system to operate a water heater. The pump draws water from the storage tank(s) and fills the water heater tank. Inside the water heater is an electrical heating element and usually a coiled tube called a heat exchanger. When AC power is available, the electrical element (controlled by a

20-Gallon Water Heater with Heat Exchanger - 240V

A marine water heater is simply a small, insulated tank downstream of the pump. You must have a pressurized water system to operate a water heater. The pump draws water from the storage tank(s) and fills the water heater tank. Inside the water heater is an electrical heating element and usually a coiled tube called a heat exchanger. When AC power is available, the electrical element (controlled by a thermostat) heats the water. Away from the dock, the hot engine coolant is routed through the coiled tube to heat the water in the tank when the engine is running.

Water heaters have four threaded ports. The tank inlet connects via a tee connector to the outlet hose from the pump. A check valve is required in this line or in the heater to prevent hot water from migrating back toward the pump. The outlet connection supplies heated water to the hot side of all faucets, also using tee connectors. The other two ports are for the heat exchanger connection, which varies depending on engine installation. Use only metal fittings to plumb a water heater, never plastic. If a pressure-release valve isnt integral, the heater will have a fifth port for this essential component.

Raritans 1700 Series Water Heaters are built for the long haul. A glass-lined steel tank and a rust-proof jacket keep the Raritan water heater looking great and lasting for many years. Research has shown that glass-lined steel tanks are more durable than tanks made from just stainless steel. To increase longevity and fluctuations in water quality, Raritan includes a sacrificial magnesium anode that ensures a long tank life.

Features:


  • A heat exchanger (the heat exchanger allows the user to heat water when underway by circulating engine cooling fluid through the almost 7-foot-long coil within the tank)

  • The recovery rate can be as high as 18 gallons per hour

  • High-density non-CFC foam insulation helps the tank to maintain the hot water longer, a plus if you dont want to run the generator for hot water

  • Hot water at 160 degrees F when mixed with cold water can greatly extend the usable capacity of the tank

  • Because the heater includes an adjustable thermostat it can be set as high as 160 degrees F

  • All plumbing connections on one side (it retrofits without difficulty to most onboard pressure systems)

  • Hot and cold-water fittings are standard 3/4 in. male NPT and the heat exchangers 3/4 in. female NPT

Specifications:


  • Tank Size: 20-gallon

  • Volts: 240

Benefits:


  • Simple installation retrofits to most on-board pressure systems

  • Proven long-life design

  • Withstands the rigors of the marine environment

  • The glass-lined steel tank is more durable than stainless steel

  • The attractive polymer jacket resists corrosion from dampness

  • Ignition-protected, adjustable thermostat

  • Round tanks are designed to withstand more pressure than square tanks

  • Glass-lined steel tank for long life and high efficiency

  • Environmentally friendly CFC-free foam insulation

  • Replaceable magnesium anode to protect the tank and neutralize acids in the water

  • The tank is covered by a five-year Limited Warranty

  • Each unit is assembled by hand, individually tested, and backed by Raritans two-year Limited Warranty and legendary technical support team

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 29074184527

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4.7 ★★★★★
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Z. Ed
Los Angeles, US
★★★★★ 5
Finally, a dress shoe that actually feels like a sneaker!
Size: 8.5, Color: Dark Brown
I was honestly super skeptical about buying shoes on Amazon, especially "dress sneakers." Usually, they either look incredibly cheap in person or they completely destroy your heels within an hour. I am so glad I took a chance on these Bruno Marcs. I commute to campus and take the bus almost every day, so I end up doing a ton of walking. I needed something that looked sharp and put-together, but I absolutely refused to sacrifice comfort for a long day on my feet. These completely hit the mark. Right out of the box, there was zero break-in period—no stiffness, no pinching, and no blisters. They are incredibly lightweight, and the material actually looks premium, not like that shiny, fake plastic you sometimes get at this price point. The traction on the bottom is surprisingly good too, which is a lifesaver when I'm rushing to catch my bus on rainy mornings. If you’re on the fence, just get them. It’s rare to find a shoe that balances looking professional with feeling exactly like your favorite weekend sneaker. Easily one of the best wardrobe purchases I've made in a while!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 4, 2026
M
Verified Purchase
Milagros Ramos
Birmingham, US
★★★★★ 4
High quality, perfect color and very nice price!
Size: 14, Color: Brown, Size: 14, Color: Brown
I bought this shoes for my husband's Christmas present, so he didn't try yet. So far, the color is perfect! I feel like he can wear this shoes with different outfits, for the price it seems hight quality, it is not heavy at all. The shoe features a soft, comfortable lining and the sole is perfect because it is non-slip.
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Reviewed in the United States on December 4, 2025
E
Verified Purchase
effie
San Leandro, US
★★★★★ 5
Squeaky
Size: 8, Color: Black
They look incredible. But they're a little squeaky. Otherwise my husband loves the comfort. They go with any outfit
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Reviewed in the United States on May 11, 2026
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Verified Purchase
Boito
San Leandro, US
★★★★★ 5
These fit very nicely, are comfortable, and work for my wide feet!
Size: 12 Wide, Color: Brown
Once I learned while shoe shopping in my youth that I needed wide-sized shoes, I wasn't able to easily choose from any shoes I saw in the store. I usually have to go find the wide widths and have to deal with the limited styles they have. Shopping online has been hit and miss, too. Sometimes, shoes are advertised as wide width, but end up still being too narrow. These shoes fit me just right. They were not too tight at the toes, gave good width at the arch, and the opening was large enough that I didn't have to undo every single lace just to get my foot in. They also look nice, and I'm sure will take a decent polish. Also, note that this does say it's an Oxford shoe, but it does have the open lacing and is more of a derby-style shoe. This also helps with sizing for my wide feet. If I didn't already have a pair of black shoes, I'd look at picking one of these up. My only reservation with these is that the soles are not dark-colored to complement a more formal style. I feel the white makes them a little more casual. The sole is also more transparent/opaque coloring at the heel and underneath, which you can kind of see-through, so keep that in mind. It's not fully clear, but is kind of transparent, which I was not expecting. I think it also shows where it picks up dirt as you wear it. Just more of a style cue one way or another. As a reference, I buy the 4E wide and Extra Wides in New Balance and Skechers. I also have a hard time getting any good fit in Nike shoes.
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Reviewed in the United States on October 2, 2023
M
Verified Purchase
Michelle sealock
Houston, US
★★★★★ 5
Looks and feel good
Size: 10.5, Color: Black
Shoes look dressy but feel comfortable. They are stiff but very comfortable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2026

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