Proudly Canadian
Free Shipping on orders over $99*

Water Heaters

60 Listed

  1. Seaward Marine Water Heater - 6 Gal Front Heat Exchange

    $524.99 - $652.99
    0

  2. Seaward Marine Water Heater with Rear Heat Exchanger

    $523.99 - $555.99
    0

  3. Kuuma Marine Water Heater - 11811

    $372.99
    0

  4. Seaward Marine Water Heater - 11 Gal Rear Heat Exchange

    $590.99 - $868.99
    1

  5. Isotemp SPA 40L Marine Water Heater

    $730.00 - $750.00
    0

  6. Isotemp Slim 15L Marine Water Heater

    $784.00 - $787.00
    0

  7. Kuuma Marine Water Heater - 11841

    $470.99
    0

  8. Seaward Marine Water Heater - 11 Gal Front Heat Exchange

    $599.99 - $758.99
    1

  9. Isotemp SPA 15L Marine Water Heater

    $621.00 - $650.00
    0

  10. Isotemp Basic 40L Marine Water Heater

    $995.00 - $1,011.00
    0
  11. 15% off

    Seaward Marine Water Heater - 20 Gal Front Heat Exchange

    $914.99 - $1,119.99
    $778.21 - $1,084.99
    0

  12. Seaward Marine Vertical Water Heater - 20 Gal Front Heat Exchange

    $1,177.99 - $1,218.99
    1

  13. Isotemp Square 16L Marine Water Heater

    $995.99 - $1,043.00
    0

  14. Isotemp SPA 20L Marine Water Heater

    $653.00 - $683.00
    0
  15. 22% off

    Seaward Marine Water Heater - 6 Gal Rear Heat Exchange

    $574.99 - $658.99
    $511.80 - $649.99
    0

  16. Isotemp Slim 20L Marine Water Heater

    $813.00 - $824.00
    0

  17. Kuuma Marine Water Heater - 6 Gal - 11812

    $349.99
    0
  18. 13% off

    Raritan 1700 Series Marine Water Heater Front Heat Exchanger

    $1,239.99 - $1,614.99
    $1,071.43 - $1,614.99
    0

  19. Isotemp Basic 40 TCT Dual Coil Marine Water Heater

    $1,086.00 - $1,109.00
    0

  20. Isotemp Basic 24L Marine Water Heater

    $928.00 - $930.00
    0

  21. Isotemp SPA 30L Marine Water Heater

    $678.00 - $715.00
    0

  22. Kuuma Marine Water Heater - 11810

    $382.99
    0

  23. Isotemp Basic 30L Marine Water Heater

    $942.00 - $957.00
    0

  24. Kuuma Marine Water Heater - 5 Gal - 11800

    $369.99
    0

  25. Kuuma Marine Water Heater - 11 Gal - 11842

    $485.99
    1

  26. Kuuma Marine Water Heater - 11 Gal - 11840

    $484.99
    0

  27. Isotemp Replacement Water Heater Element

    $55.99 - $62.99
    0

  28. Seaward Replacement Temperature and Pressure Relief Valve - 75974

    $31.99
    0

  29. Seaward Hot Water Heater for Outboard Boats - 3 Gal - S360EW

    $695.99
    0

  30. Seaward High Temperature Limit Switch

    $18.69 - $36.99
    0

  31. Isotemp Slim 25L Marine Water Heater

    $874.00 - $890.00
    0

  32. Isotemp Basic 75L Marine Water Heater

    $1,170.00 - $1,194.00
    0

  33. Seaward Marine Water Heater - S300W

    $593.99
    0

  34. Seaward Replacement Water Heater Thermostat - 73129

    $14.53
    0

  35. Raritan Temperature and Pressure Safety Relief Valve - WH3

    $36.99
    0

  36. Kuuma Marine Water Heater Element - 02858

    $33.99
    0

  37. Kuuma Replacement Water Heater Thermostat - 11930

    $35.99
    0

  38. Isotemp SPA 25L Marine Water Heater

    $710.00 - $796.99
    0

  39. Kuuma Marine Water Heater - 20 Gal - 11870

    $692.99
    0

  40. Raritan Screw-In Replacement Heating Element

    $34.99 - $36.99
    0
  41. 22% off

    Seaward Marine Water Heater - 11 Gal - S1200E

    $729.99
    $565.48
    0

  42. Raritan Bolt-On Replacement Heating Element

    $34.99 - $37.99
    0

  43. Raritan Water Heater Thermostat - WH16

    $73.99
    0

  44. Seaward Replacement Heating Element

    $28.99 - $29.99
    0

  45. Kuuma Replacement Heater Element Gasket - 06822

    $3.40
    0

  46. Kuuma Thermo-O-Disc 120V High Temp Limiter with Reset Button - 11926

    $34.99
    1
  47. 20% off

    Kuuma High Temperature Limiter - 11920

    $42.99
    $33.99
    0

  48. Kuuma Nylon Drain Valve - 11523

    $7.96
    0
 
1 / 2Next

0Filters

Manufacturer
Price
3.4
1278
More Ways To Shop
Availability
Fulfillment

Explore

Guides
Brands

Helpful Information

Track My Order
Shipping Policy
Return Policy
Outlet Store
Defender 1st

Get In Touch

Customer Service
1-800-628-8225
Send a Message

Resources

Gift Cards
Privacy Policy
Conditions of Use
Accessibility Statement

Stay Connected

Members receive special perks, including offers and new releases, by subscribing to our monthly newsletter.

    • Ensuring that the email is valid...
    • This might take a few seconds.
    • Are you sure the email is typed correctly?
      Twitter
      Facebook
      Instagram
      YouTube
      Toggle desktop/mobile version
      2023 © Defender. All Rights Reserved.