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Best water heaters for boats - Holiday Sale 2025

Last Updated - December 14, 2025

1
Best Choice

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Whale

Whale F600W Water Heater, 6 Gallon Capacity, 120V, 1500W, Measures 13 inches W x 19 inches D x 13 inches H

Whale

$616.16

$649.93
(5% Off)

More Details
Main highlights
- Strong, rugged construction ensures a long service life, enhancing the unit's outstanding value
- Reliably maintains a large supply of hot water
- Reliable double-walled front heat exchanger, 100 psi rating, integrated temperature and pressure relief valve
- Mounts horizontally, features hold-down brackets welded to the inner tank, and durable Aluminum housing in White Epoxy Finish
- Measures 13 inches W x 19 inches D x 13 inches H
- 120v/1500w Water Heater has a 6-gallon capacity
$616.16
$649.93 (5% Off)
2

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Camco

Camco 11840 Water Heater with 120V Front Heat Exchange and Side Mount - 11 Gallons

Camco

$611.99

More Details
Main highlights
- Premium 11-gallon Kuuma water heater provides your boat with an ample supply of hot water
- Listed per UL 174 and CAN/CSA C22.2 No. 110
- Includes front heat exchange and side to side mounting brackets
- Electrical Input: 120V-60Hz/1500W
- Capacity: 11-gallons
$611.99
3

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Kuuma

Kuuma 11812-6 Gallon Water Heater - 120V

Kuuma

$442.23

More Details
Main highlights
- Great Product
$442.23
4

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Whale

Whale F600 Water Heater, 6-Gallon Capacity, 120V, Front Heat Exchanger, 13 Inches W x 19 Inches D x 13 Inches H, Galvanized Steel

Whale

$519.28

$555.39
(6% Off)

More Details
Main highlights
- Reliably maintains a large supply of hot water
- Reliable double-walled front heat exchanger, 100 psi rating, integrated pressure relief valve
- Mounts horizontally, features hold-down brackets welded to inner tank, and durable marine galvanized steel case
- Measures 13 inches W x 19 inches D x 13 inches H
- Ignition Protected
- Durable, rugged construction ensures a long service life, enhancing the unit's outstanding value
- 120V Water Heater has a 6-gallon capacity
$519.28
$555.39 (6% Off)
5
Best Value
21% Off

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Kuuma
21% Off

Kuuma 120V 6 Gallon Water Heater - Side Mount, Front Heat Exchange 11810

Kuuma

$428.50

$547.99
(21% Off)

More Details
Main highlights
- Kuuma 6 Gal WH, 120V Front Heat Exch,Side Mount, UL
- Kuuma 6 Gal WH, 120V Front Heat Exch,Side Mount, UL
- Kuuma 6 Gal WH, 120V Front Heat Exch,Side Mount, UL
- Kuuma 6 Gal WH, 120V Front Heat Exch,Side Mount, UL
- Kuuma 6 Gal WH, 120V Front Heat Exch,Side Mount, UL
$428.50
$547.99 (21% Off)

Best water heaters for boats - Holiday Sale 2025

Whale F600W Water Heater, 6 Gallon Capacity, 120V, 1500W, Measures 13 inches W x 19 inches D x 13 inches H

Camco 11840 Water Heater with 120V Front Heat Exchange and Side Mount - 11 Gallons

Kuuma 11812-6 Gallon Water Heater - 120V

Whale F600 Water Heater, 6-Gallon Capacity, 120V, Front Heat Exchanger, 13 Inches W x 19 Inches D x 13 Inches H, Galvanized Steel

Kuuma 120V 6 Gallon Water Heater - Side Mount, Front Heat Exchange 11810

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