HOLIDAY ALERT

We will be closing at 12 PM EST on Friday, April 18th, in observance of Good Friday and Easter.
Any orders placed after this time will be processed on Monday, April 21st.
Have a happy Easter weekend!

Weather Closure Alert

Due to severe weather, our White House, Tennesee location will be closed Wednesday the 19th.

All shipments from this location will resume on Thursday the 20th. Thank you for your patience!

WE WANT TO HEAR FROM YOU!

We strive to make improvements that make it easier to serve your boating needs.
We’d like to know more about you and how we can do the best job possible for you.
Please take the time to complete this brief 3-5 minute survey to help us serve you better.

FREE Ground Shipping on Orders over $100!  Exceptions apply - see details.

Toggle Nav
  • Sign In
  • Create an Account
My Cart
Search
Menu
Account
Settings

Water Heaters & Replacement Parts

Items 1-12 of 68

Set Descending Direction
View as List Grid
Page
  1. 11 Gal Marine Water Heater with Heat Exchanger - KUUMA-11841_LG
    11 gallon Water Heater, 120 volt | Kuuma 11841
    KUUMA-11841
    Qty In Stock: 11
    Brand: Kuuma

    This Kuuma 11841 marine hot water heater with front heat exchanger features an aluminum jacket and tank. This model is equipped with front and rear mounts.

    Learn More
    MSRP: $673.99 $461.99
    Add to Wishlist
  2. Whale F600 Seaward 6 Gallon 120V Water Heater w/Front Heat Exchanger, Galvanized Jacket
    6 gallon Water Heater, 120 volt | Whale F600
    WHALE-F600
    Qty In Stock: 6
    Brand: Whale

    This Whale F600 marine hot water heater with front heat exchanger features a galvanized steel jacket and an aluminum tank. This water heater is equipped with front and rear hold down brackets.

    Learn More
    MSRP: $701.72 $461.66
    Add to Wishlist
  3. 11 Gallon Water Heater KUUMA-11840_LG
    11 gallon Water Heater, 120 volt | Kuuma 11840
    KUUMA-11840
    Qty In Stock: 4
    Brand: Kuuma

    This Kuuma 11840 marine hot water heater with front heat exchanger features an aluminum jacket and tank. This model is equipped with side mounts.

    Learn More
    MSRP: $692.99 $491.38
    Add to Wishlist
  4. 4 Gal. Water Heater, 115V - Isotemp Spa 15 ISO-6P1523SPA0003_LG
    4 gallon Water Heater, 115 volt | Isotemp 6P1523SPA0003
    ISOTEMP-6P1523SPA0003
    Qty In Stock: 0
    Brand: Isotemp

    This Isotemp SPA 15 marine hot water heater with front heat exchanger is equipped with a safety mixing valve and features a polypropylene jacket and stainless steel tank.

    Learn More
    MSRP: $776.00 $621.00
    Add to Wishlist
  5. 6 Gallon Water Heater KUUMA-06822_SM
    6 gallon Water Heater, 120 volt | Kuuma 11810
    KUUMA-11810
    Qty In Stock: 12
    Brand: Kuuma

    This Kuuma 11810 marine hot water heater with front heat exchanger features an aluminum jacket and tank. This model is equipped with side mounts.

    Learn More
    MSRP: $547.99 $354.99
    Add to Wishlist
  6. Whale S1150 Seaward 11 Gallon 240V Water Heater w/Rear Heat Exchanger, Galvanized Jacket
    11 gallon Water Heater, 240 volt | Whale S1150
    WHALE-S1150
    Qty In Stock: 2
    Brand: Whale

    This Whale S1150 marine hot water heater with rear heat exchanger features a galvanized steel jacket and an aluminum tank. This water heater is equipped with front and rear hold down brackets.

    Learn More
    MSRP: $824.14 $588.67
    Add to Wishlist
  7. Kuuma 11897 20 Gal. Water Heater, 240V
    20 gallon Water Heater, 240 volt | Kuuma 11897
    KUUMA-11897
    Qty In Stock: 0
    Brand: Kuuma

    This Kuuma 11897 marine hot water heater with front heat exchanger features an aluminum jacket and tank. This model is equipped with front and rear mounts.

    Learn More
    MSRP: $1,118.99 $769.99
    Add to Wishlist
  8. 20 Gal. Water Heater, 120V KUUMA-11871_LG
    20 gallon Water Heater, 120 volt | Kuuma 11871
    KUUMA-11871
    Qty In Stock: 4
    Brand: Kuuma

    This Kuuma 11871 marine hot water heater with front heat exchanger features an aluminum jacket and tank. This model is equipped with front and rear mounts.

    Learn More
    MSRP: $1,014.99 $815.39
    Add to Wishlist
  9. 5.3 Gal. Water Heater, 115V - Isotemp Slim 20 ISO-602021S000003_LG
    5.3 gallon Water Heater, 115 volt | Isotemp 602021S000003
    ISOTEMP-602021S000003
    Qty In Stock: 2
    Brand: Isotemp

    This Isotemp Slim 20 marine hot water heater with front heat exchanger is equipped with a safety mixing valve and features a stainless steel jacket and tank.

    Learn More
    MSRP: $1,016.00 $813.00
    Add to Wishlist
  10. 6.4 Gal. Water Heater, 115V- Isotemp Basic 24 ISO-602421B000003_LG
    6.4 gallon Water Heater, 115 volt | Isotemp 602421B000003
    ISOTEMP-602421B000003
    Qty In Stock: 4
    Brand: Isotemp

    This Isotemp Basic 24 marine hot water heater with front heat exchanger is equipped with a safety mixing valve and features a stainless steel jacket and tank.

    Learn More
    MSRP: $1,160.00 $928.00
    Add to Wishlist
  11. Whale H2050EW Seaward 20 Gallon 240V Water Heater, No Heat Exchanger, White Jacket
    20 gallon Water Heater, 240 volt | Whale H2050EW
    WHALE-H2050EW
    Qty In Stock: 0
    Brand: Whale
    This Whale H2050EW marine hot water heater features a white epoxy painted aluminum jacket and an aluminum tank. This model is not equipped with a heat exchanger. This water heater is equipped with front and rear hold down brackets. Learn More
    MSRP: $1,442.60 $1,030.43
    Add to Wishlist
  12. Whale S360EW Seaward 3 Gallon 12V Water Heater, No Heat Exchanger, White Jacket
    3 gallon Water Heater, 12 volt | Whale S360EW
    WHALE-S360EW
    Qty In Stock: 5
    Brand: Whale

    This Whale S360EW marine hot water heater features a white epoxy painted aluminum jacket and an aluminum tank. This model is not equipped with a heat exchanger. This water heater is equipped with front and rear hold down brackets.

    Learn More
    MSRP: $962.78 $722.49
    Add to Wishlist

Items 1-12 of 68

Set Descending Direction
View as List Grid
Page
My Wish List
Last Added Items
  1. Add to Cart
    Remove This Item
Go to Wish List
You have no items in your wish list.
© 2025 Marine Parts Source. All Rights Reserved.