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    2859 bus heater location

    I have a bus heater I would like to install in my 2859 but I'm not sure where to place it. I seem to remember once reading about how important it is to position a bus heater at a certain level, relative to the vertical position of the engine. What I don't remember was if it should be above or below whatever point of reference was used. I've searched in vain for something that would either confirm or debunk this thinking. Are there in fact any "rules" of placement other than to install it as close to the engine as possible to keep the distance the hot water has to flow as short as possible?

    The only heater I've ever seen in a 2859 was mounted in the cockpit wall below the helm seat. This was several years ago and I don't remember now if it was a bus or a diesel system, just that there were heater vents mounted below the helm seat's folding shelf, Although our boat has a large custom built storage cabinet under the helm seat where I could mount a heater, she doesn't have the Alaska bulkhead so trying to warm the bridge with only a cruising curtain seems kind of pointless.

    I'm also installing a new hot water tank and plan to connect it to the closed cooling system in series with the bus heater.

    So...is there some important relationship between the engine's and the bus heater's vertical position?
    And...where does anyone else's 2859/2858 have their bus heater installed?

    Thanks
    Paul
    2002 2859 Ciera Classic, 350 MAG MPI, Bravo II
    2013 Tandem TuffTrailer
    2005 GMC Sierra 2500HD, 6.6L Duramax/Allison

    #2
    Originally posted by Bodie View Post
    So...is there some important relationship between the engine's and the bus heater's vertical position?
    And...where does anyone else's 2859/2858 have their bus heater installed?

    Thanks
    Nope, put it wherever you'd like, just make sure it's supplied by a port upstream of the engines t stat and the return connects to the starboard side of the engines circ pump.
    I've moved my cabin heater forward to the lower portion of the lower helm on my 2556 (about a 35 ft loop) works great.
    Dave
    Edmonds, WA
    "THE FIX"
    '93 2556 5.7 Bravo II 2.0:1 18 1/4x19 P
    (.030 over-Vortec top end-part closed cooled)
    The rebuild of my 2556 https://www.baylinerownersclub.org/f...76?view=thread
    Misc. projects thread
    https://www.baylinerownersclub.org/f...56-gctid789773

    Comment


      #3
      Thanks Dave, just what I wanted to hear!
      Paul
      2002 2859 Ciera Classic, 350 MAG MPI, Bravo II
      2013 Tandem TuffTrailer
      2005 GMC Sierra 2500HD, 6.6L Duramax/Allison

      Comment


        #4
        Mine was under the step into the cabin, the one that is carpeted and lifts up.
        I thought they all came with them there standard.
        Esteban
        B-ham!
        Former Bayliners 3218, 2859, 2252, 1952

        Comment


          #5
          My heater is mounted behind the fridge under the dinette seat.
          "REEL WILD"
          2001 2859 FNM 300 Diesel-Bravo 2
          Anchorage, Alaska
          If you don't like the weather, wait 15 minutes.......

          Comment


            #6
            On my 2950 Sunbridge, I had a big one mounted next to the pilots seat, well above the engines. The trick was to burp the closed cooling system.
            P/C Pete
            Edmonds Yacht Club (Commodore 1993)
            1988 3818 "GLAUBEN”
            Hino EH700 175 Onan MDKD Genset
            1980 Encounter Sunbridge "Misty Blue" (Sold)
            MMSI 367770440
            1972 Chevrolet Nova Frame off Resto-mod in the garage
            Boating on the Salish Sea since 1948

            Comment


              #7
              My location is under the step and facing in to the cabin, I installed a bleeder in to the hose feeding the coolant from the heater to the water heaters should air get trapped in the system it can be bead of.
              Slightly modified 2859 6.5 Diesel Bravo III X drive
              96 Dodge 5.9 5 speed Gear vender OD.

              Comment


                #8
                How many of those heaters can effectively be used on a SBC?
                Esteban
                B-ham!
                Former Bayliners 3218, 2859, 2252, 1952

                Comment


                  #9
                  My one is sufficient for the cabin and with the camper closed up keeps me warm.
                  Slightly modified 2859 6.5 Diesel Bravo III X drive
                  96 Dodge 5.9 5 speed Gear vender OD.

                  Comment


                    #10
                    Originally posted by green650 View Post
                    How many of those heaters can effectively be used on a SBC?
                    I haven't measured the actual temps on the return line but it's still plenty hot to the touch at the engines circ pump. You could likely increase the size of the cabin heater a bit or run two smaller ones but the second one in the loop may just put out mildly warm air idk.
                    Dave
                    Edmonds, WA
                    "THE FIX"
                    '93 2556 5.7 Bravo II 2.0:1 18 1/4x19 P
                    (.030 over-Vortec top end-part closed cooled)
                    The rebuild of my 2556 https://www.baylinerownersclub.org/f...76?view=thread
                    Misc. projects thread
                    https://www.baylinerownersclub.org/f...56-gctid789773

                    Comment


                      #11
                      My heater lines run through the hat water heater, one thing I noticed is the water at the faucet is hotter when heated by the engine, verses electric element.
                      Slightly modified 2859 6.5 Diesel Bravo III X drive
                      96 Dodge 5.9 5 speed Gear vender OD.

                      Comment

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