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RARITAN 1700 Series Water Heaters

With a proven long-life design, these water heaters feature an attractive polymer outer jacket that won't rust. Inside is a durable glass-lined steel tank surrounded by environmentally-friendly, CFCfree foam insulation. At sea, the built-in engine heat exchanger heats water rapidly, while at the dock an electric heating element quickly gets your water hot. All models include adjustable thermostats and are ignition and thermal-overload protected. Each includes a built-in engine water heat exchanger and a 120V or 220V AC heating element, except for Model 256920 which operates on 120V AC only.

  • Draw: 10A @120V AC
  • Material: Glass-lined steel
  • Port Sizes: 3/4" male NPT, 3/4" female NPT heat exchanger
  • Warranty: Five years limited on tank; two-year limited on entire heater
Customer Reviews
Product Models
Description WM Model # MFG Part # Availability Price Quantity  
6 gal. Heater, without Heat Exchanger, 120V AC, 14-1/2"dia. x 16-1/4"H 256904 170601
In stock online.

$799.99

6 gal. Heater, Exchanger/120V AC, 14-1/2"dia. x 16-1/4"H 296394 170611
In stock online.

$899.99

12 gal. Heater without Heat Exchanger, 120V AC, 18-3/4"dia. x 16-1/4"H 2425171 171201
In stock online.

$899.99

12 gal. Heater, Exchanger/120V AC, 18-3/4"dia. x 16-1/4"H 296386 171211
In stock online.

$999.99

12 gal. Heater, Exchanger/220V AC, 18-3/4"dia. x 16-1/4"H 256912 171212
In stock online.

$1,189.99

20 gal. Heater, All Electric/120V AC, 18-3/4"dia. x 24-1/4"H 256920 172001
In stock online.

$999.99

20gal. Water Heater, without Heat Exchanger, 240V 10738441 172002
Delivery within 2 - 3 weeks.

$1,099.00

20 gal. Heater, Exchanger/120V AC, 18-3/4"dia. x 24-1/4"H 256938 172011
In stock online.

$1,299.99

Product Description

With a proven long-life design, these water heaters feature an attractive polymer outer jacket that won't rust. Inside is a durable glass-lined steel tank surrounded by environmentally-friendly, CFCfree foam insulation. At sea, the built-in engine heat exchanger heats water rapidly, while at the dock an electric heating element quickly gets your water hot. All models include adjustable thermostats and are ignition and thermal-overload protected. Each includes a built-in engine water heat exchanger and a 120V or 220V AC heating element, except for Model 256920 which operates on 120V AC only.

  • Draw: 10A @120V AC
  • Material: Glass-lined steel
  • Port Sizes: 3/4" male NPT, 3/4" female NPT heat exchanger
  • Warranty: Five years limited on tank; two-year limited on entire heater

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