Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Enjoy free shipping during the holidays! Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC and to all U.S. Military APO/FPO/DPO addresses.

Enjoy Our Extended FREE RETURNS

We want to ensure that making a return is as easy as possible! With our Hassle-Free, Extended Holiday Returns, eligible orders placed from November 12, 2025 on will benefit from an extended return deadline (January 13, 2026 or 30 days after receipt of your order - whichever is later). We'll even cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart
Questions & Answers
what is the over all dimension? Expert Answer

The Raritan 20-Gallon Hot Water Heater w/o Heat Exchanger dimensions are 24.25" H x 18.75" OD.

by Ethan, Gear Expert, June 27, 2022
Color: Black Voltage: 120 volts

Code: 735-BMA-CWR1537-172001

MPN: 172001

UPC: 085462001598

List: $1,730.00Save 29%
$1,229.00

Product Info for Raritan 20-Gallon Hot Water Heater w/o Heat Exchanger

1700 Series Water Heaterimage

120v

20 Gallon

W/O Engine Heat Exchanger

The "1700 Series" water heater provides hot water for galley and shower. Dense foam insulation provides better and longer heat retention than traditional fiberglass. The tank itself is protected by a 75 PSI T& P ( temperature and pressure) relief valve. The cylindrical design of the tank enables it to withstand more pressure than a cube shaped tank.

Heat exchanger models can be connected to the engine cooling system. This provides the added convenience of hot water when underway or generator power is not available. The innovative heat exchanger is over seven feet in length and is evenly coiled throughout the interior of the tank providing hot water rapidly and efficiently.

Raritan's water heaters use an ignition protected thermostat. Although it is factory set to 120F it is adjustable from 110 to 160F and has a safety shut down limit of 190F. All models and sizes have the plumbing connections on the same side to simplify installation. Hot and cold water connections are 3/4" male NPT (National Pipe Thread). Heat exchanger connections are 3/4" female NPT.

Benefits:

Simple installation - retrofits to most on-board pressure systems

Proven long-life design

Withstands the rigors of the marine environment

Glass-lined steel tank is more durable than stainless steel

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 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 Raritan's two-year Limited Warranty and legendary technical support team

Specifications for Raritan 20-Gallon Hot Water Heater w/o Heat Exchanger:

Manufacturer: Raritan
Color: Black
Voltage: 120 volts

Features of Raritan 20-Gallon Hot Water Heater w/o Heat Exchanger

  • Gallons: 20
  • Heat Exchanger: No
  • Volts: 120v

Package Contents:

  • Raritan 20-Gallon Hot Water Heater w/o Heat Exchanger

Raritan 20-Gallon Hot Water Heater w/o Heat Exchanger Orderable Models

List of Orderable Models

  • Raritan 20-Gallon Hot Water Heater w/o Heat Exchanger - 120V, 172001 , MPN: 172001 , UPC: 085462001598 , Code: 735-BMA-CWR1537-172001
Compare (0)