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 17 - Aug 22

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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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M
West Palm Beach, US
★★★★★ 5
Quality mats that provide noticeable noise suppression
Size: 10 sqft
I used these mats when I replaced the carpet in my Chevy Tahoe. Cutting the mats to size was easy enough with a utility knife and a straightedge. The adhesive backing stuck fairly well, but I used a roller to press the mats into place on the metal panels, which seemed to help them adhere a little better. Under the old carpet was the type of insulation you'd typically see under carpet in a typical home. It was worn, so I tossed it and installed the new carpet directly over these new mats. The before & after difference in noise was minimal, but noticable. But I only installed them on the floor - not in the doors, rear hatch area, firewall, or roof. So overalll, I'm pleased with these mats as they provided the noise suppression that I had expected.
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Reviewed in the United States on March 20, 2026
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Us
Louisville, US
★★★★★ 5
Easy to cut and easy to install
Size: 10 sqft, Size: 10 sqft
You receive 9 sheets of RUNSUNSPRII Car Sound Deadening Mat that each measure 9.75" x 15.75". This calculates to a total of 9.6 square feet in total for all of the sheets. Of all the different styles of sound deadening mats, foil lined butyl is the best type for eliminating vibration. This quality product has a printed gridwork of 2-inch squares on the liner to aid in cutting the correct sized pieces. Even with as sticky as this product is, it is super easy to cut to shape with one pass of a razor blade. OEM auto manufacturers use this same kind of product extensively on the inner structure for sound deadening and to block sound and air transmission through all sizes of holes and cutouts. Because it is highly waterproof, it also is perfect for blocking areas to prevent water intrusion. The very sticky pads adhere to all surfaces and are very flexible and will conform to fit many areas. Because it is thin, it is ideal to install under interior trim panels without causing interference with how the panels fit.
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Reviewed in the United States on January 26, 2026
E
EverydayConsumerEddy
Dallas, US
★★★★★ 5
Solid quality and good price
Size: 10 sqft
I bought this for my custom built camper van and it’s been great so far. For $24, the amount of coverage you get is totally fair, and I’ll probably grab a second box to finish everything. It’s easy to install with just scissors and something to press it down, and making quick cardboard templates really helps for tight spots. The adhesive is insanely strong, so once it sticks, it’s not going anywhere (just don’t let it stick to itself). Keep in mind this is sound deadening, not full soundproofing, but even with partial coverage I can already hear a difference in reduced road noise and vibrations. I’m using this as a base layer and plan to add soundproofing on top, and so far I’m really happy with how it’s turning out.
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Reviewed in the United States on January 22, 2026
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Dorthy Shortz
Belleville, US
★★★★★ 5
It's a job but totally worth it
Size: 36 sqft
Pack a lunch when you tackle this project boys.. its a doozy!! Month in going great so far definetly did what I purchased it to do. 2000 chevy with two p3 10s every bass drop sounded like an old firebird with loose trunk bolts. Threw this on the back walls floor underneath the speaker and the doors.. all that energy is now in the cab with me instead of getting lost in rattling metal!! Love it!!! Left a few pieces outside after I was done rained like hell on them so water doesnt hurt this stuff at all or direct sunlight in south mississippi.. good stuff pick this up and make them systems thud instead of rattle!!! You wont regret it!! I didn't!!
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Reviewed in the United States on June 11, 2026
R
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Roseanna Boyce
Draper, US
★★★★★ 5
Delivers a quieter ride
Size: 36 sqft
This works very well to put down road noise. The difference was immediate in my van. I was shocked it made such a difference.
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Reviewed in the United States on June 6, 2026

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