Water Heater Elimination.

micktumicktu Member Posts: 7 ✭
in General Boating Discussions
My electric water heater hasn't worked in years. I disconnected power to it back then until I had time to look into it. This has not been much of a concern because we still get plenty of hot water after running the engine. The old heater started leaking rusty water last year. Has anyone done, or heard of looping the hoses in order to eliminate the water heater, but still get hot water from the engine? Would this work?

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  • Cableguy GregCableguy Greg Member Posts: 5,077 ✭✭✭✭✭
    Look, a fellow Pittsburgh boater!!! Where do you boat at?

    Unfortunately no. You still need the tank to heat the water.
    2008 280 Express Cruiser, 6.2MPI, B3, Pittsburgh, PA "Blue Ayes" (Sold)
    2022 Cherokee 294GEBG Black Label land yacht. 
    Go Steelers!!!
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  • LaReaLaRea Member, Moderator Posts: 8,054 mod
    No, I don't think it works that way.  My understanding is that the system circulates heated seawater or coolant from the engine into a heat exchanger that is inside the water heater.  You can't pump cold fresh water into the engine and get hot fresh water out.  

    See the picture below.  The electric heating element is in the center, and the heat exchanger runs along the outside.

    I think you are stuck spending $300 for a water heater.

    http://stevedmarineconsulting.com/water-heater-primer/ 


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  • Handymans342Handymans342 Member Posts: 10,375 ✭✭✭✭✭
    Cableguy Greg said:
    Look, a fellow Pittsburgh boater!!! Where do you boat at?

    Unfortunately no. You still need the tank to heat the water.
    He boats where the Penguins are boating now. LOL
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  • Cableguy GregCableguy Greg Member Posts: 5,077 ✭✭✭✭✭
    Handymans342 said:
    Cableguy Greg said:
    Look, a fellow Pittsburgh boater!!! Where do you boat at?

    Unfortunately no. You still need the tank to heat the water.
    He boats where the Penguins are boating now. LOL
    The Pens can't win it every year.
    2008 280 Express Cruiser, 6.2MPI, B3, Pittsburgh, PA "Blue Ayes" (Sold)
    2022 Cherokee 294GEBG Black Label land yacht. 
    Go Steelers!!!
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  • micktumicktu Member Posts: 7 ✭
    No, but what a run.
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  • micktumicktu Member Posts: 7 ✭
    Thanks for the reply.
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  • micktumicktu Member Posts: 7 ✭
    Thank you all. 
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  • Handymans342Handymans342 Member Posts: 10,375 ✭✭✭✭✭
    Cableguy Greg said:
    Handymans342 said:
    Cableguy Greg said:
    Look, a fellow Pittsburgh boater!!! Where do you boat at?

    Unfortunately no. You still need the tank to heat the water.
    He boats where the Penguins are boating now. LOL
    The Pens can't win it every year.
    No, but they did against the Caps. 
    @micktu, just install a new heater. Its nice to have when you need it. 
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