Bilge Heater Question

Discussion in 'Winterizing' started by TN Boatman, Oct 11, 2017.

  1. TN Boatman

    TN Boatman Member

    41
    Aug 31, 2017
    Maryville, TN
    1998 Sundancer SE
    7.4MPI B3
    I decided to pull the trigger and install a bilge heater this year, Can I simply plug it into my outlets and leave outlet switch on from panel (which will have shore power and battery charger on only)? Most likely going with Twin Hornet which is 115V/700W. I can go direct to main power with 30A to 115 converter if needed. I have outlet in my cord compartment and would be easy access. Just trying to avoid as many lines as possible exiting the boat.
     
  2. Lazy Daze

    Lazy Daze Well-Known Member TECHNICAL Contributor

    Apr 21, 2009
    PA
    Various
    Various
    As long as you're making the plug connection OUTSIDE of the bilge, you're good.
     
  3. TN Boatman

    TN Boatman Member

    41
    Aug 31, 2017
    Maryville, TN
    1998 Sundancer SE
    7.4MPI B3
    Yes. Outlet is in cord locker port side. Has access port only from bilge
     
  4. Bt Doctur

    Bt Doctur Well-Known Member

    Aug 21, 2010
    New Jersey
    Ex SRV 240 Weekender twin
    in between
    And as long as the power dosent go out for a extended period of time.
     
  5. katricol

    katricol Active Member SILVER Sponsor

    Mar 4, 2008
    LONG ISLAND SOUND
    2000 540DA
    CAT 3196 660 HP
    I have a twin hornet 35 that has never been used. If interested let me know
     
  6. mwph

    mwph Active Member

    Jul 8, 2008
    Lake Guntersville, Tennessee River, Alabama
    1998 250 DA
    7.4L, B3
    Your plan is the same that I have used for 8-9 years now. I keep a digital thermometer (that records min & max temp) down there just to keep an eye on things.
     
  7. rwvw415

    rwvw415 Member

    196
    Jul 16, 2007
    Tennessee
    2007 48 Sundancer
    QSC 8.3 V Drives
    How much for the heater?
     
  8. wyrman

    wyrman Member

    850
    Jul 12, 2012
    Tri-Cities, Wa
    2007 310 Sundancer
    Twin 350's, V drives
    I bought the twin hornet 45 this week.
    Haven't installed it, heck don't even have my boat yet, but but looks well built.
     
  9. bbwhitejr

    bbwhitejr Well-Known Member

    Apr 14, 2013
    Lake Lanier GA
    2007 44DB
    Cummins QSC 8.3s
    That is the one I am going to buy....thanks for the review!

    Bennett
     
  10. Capttjmd

    Capttjmd New Member

    8
    Jun 27, 2017
    Baltimore, MD
    1997 Sea Ray 240 Sundancer
    5.7L Merc w/ Alpha 1 Gen 2
    During my time as a marine salvor I saw it too many times....owner installs bilge heater for winter (a lot of times even a space heater), winter storm blows in and knocks out power, no more heater so water in the intake lines freeze and cracks the lines, when power company restores power the heaters come back on and thaw the ice in the lines. You've just sunk your own boat, literally. The heater you installed just became what thawed the iced up lines. I even had one sink in 40' of water at the dock, that was a substantial salvage bill. Some insurance companies will not cover a sinking with a similar story. Personally to me its not worth the risk, but it all depends where you live. If you're in an area prone to winter ice or snow storms its just not worth the risk in my mind.
     
  11. marks737

    marks737 Member

    232
    Sep 15, 2009
    NJ
    2005 390 Sundancer
    Cummins QSB 5.9
    I'm going a little overboard this year. Boat is staying in water. I'm winterizing Engines and Genny with -100 antifreeze, water systems with -50, and bought an Extreme heater for the engine comp. just to be sure.
     
  12. wyrman

    wyrman Member

    850
    Jul 12, 2012
    Tri-Cities, Wa
    2007 310 Sundancer
    Twin 350's, V drives
    Well, a responsible owner still winterizes.
     
  13. katricol

    katricol Active Member SILVER Sponsor

    Mar 4, 2008
    LONG ISLAND SOUND
    2000 540DA
    CAT 3196 660 HP
    half price sound good ? I bought it thinking I would store in water and never did
     
  14. TN Boatman

    TN Boatman Member

    41
    Aug 31, 2017
    Maryville, TN
    1998 Sundancer SE
    7.4MPI B3
    Marine/RV antifreeze in water system until Galley and Head run pink with hot on cold water as well as toilet. A/C running pink out the side too. Engine oil change, water/fuel filter changed, manifolds water pump and all other areas drained, hoses disconnected, engine fogged and added a heater just so my 7.4 baby is nice and comfy. That ought to do it. :)
     
  15. Lazy Daze

    Lazy Daze Well-Known Member TECHNICAL Contributor

    Apr 21, 2009
    PA
    Various
    Various
    Pour some AF back in through the t-stat hoses - will help to keep the interior metal passageways from rusting. Also ensures that any pockets of remaining water are flushed with AF - which is a very real possibility. Just on the off chance that power is lost for a while.
     
  16. TN Boatman

    TN Boatman Member

    41
    Aug 31, 2017
    Maryville, TN
    1998 Sundancer SE
    7.4MPI B3

    LD, agree. always pour back in through upper hose.
     
  17. JVM225

    JVM225 Well-Known Member

    Apr 8, 2008
    Farmingdale, NY
    2002 410 Sundancer, Monaco Edition.
    3126 Cats.
    Me too! Just make sure you use the correct Marine/RV antifreeze with rust inhibitors.
     

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