Announcement

Collapse
No announcement yet.

Espar diesel heat versus electric/marine heat ?-gctid689033

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

    Espar diesel heat versus electric/marine heat ?-gctid689033

    Hi, I am looking at a boat in the PNW area .. with the intent to live aboard year round .. the boat has an installed Espar diesel heating system .. along with Marine heat reverse cycle.

    Q) if you had to run heat 5 hours a day worst case .. which system would be cheaper to run ? the Espar or the Marine heat ??

    thanks !!

    #2
    do you have electricity at your slip?

    Comment


      #3
      Yes .. and the boat has 30 amp shore power.

      Comment


        #4
        If your water temperature is below 40 degrees F then the reverse cycle air will be less efficient than resistance electric heating and you run the risk of freezing the heat exchange coil.

        A couple of electric fan forced heaters like the Caframo heaters have 600, 900 and 1500 watt settings plus they keep air moving.

        You have to calculate your electric cost from the marina vs. diesel cost in your area to find out what makes more sense.
        "Adios Dinero"
        1997 3988 with new 330 Cummins
        Photo Credit: Whiskywizard

        Comment


          #5
          Water temp will never get near 40 in PNW more like about 52 to 56 depending on time of year

          Comment


            #6
            We live aboard in the PNW. The electric is the cheapest. Our boat uses the Webasto and it burns about 0.4 gallons per hour. But the electric won't keep up when the temps drop below 30 degrees. We generally use the diesel to take the chill off in the morning and when temps fall below the electrics capability. We will burn about 50-75 gallons for a winter.

            We also have 30 amp service. You will learn fast to play the 30 amp two step. Our electric heaters will draw about 9 amps each, plus you have all the other potential loads on the system that may or may not cycle on and off; water heater 9 amps, battery charger, electronics, kitchen appliances (Microwave), etc. You will get use to checking the load on your system before operating anything or get use to going out on the dock to reset the breaker.
            Patrick and Patti
            4588 Pilothouse 1991
            12ft Endeavor RIB 2013
            M/V "Paloma"
            MMSI # 338142921

            Comment


              #7
              What I've read is water temps do get down to 44F in Victoria harbour BC in the deep of winter (if you can call that winter) .. but doesn't stay that cold for very long tho ..

              "Matlow" post=689094 wrote:
              Water temp will never get near 40 in PNW more like about 52 to 56 depending on time of year

              Comment


                #8
                The January average for Victoria is 45.3. The lowest is 43.6. That is a seven year average.

                This site may be of some help;

                http://www.seatemperature.org/north-...ia-january.htm
                Joel
                1987 3818 Hino 175
                "Knotty Girl"
                Prince Rupert B.C.

                Comment


                  #9
                  "Matlow" post=689094 wrote:
                  Water temp will never get near 40 in PNW more like about 52 to 56 depending on time of year
                  Yep. Here's a great link if you wanna see the actual data. Moored boats in Puget Sound have little to worry over from a freezing point of view, but there is very little heat to scavenge with a reverse-cycle system. Our electric power is among the cheapest in the nation. I'd use electric as pat suggests. Diesel burns fast through a Espar.
                  Custom CNC Design And Dash Panels

                  iBoatNW

                  1980 CHB Europa 42 Trawler- "Honey Badger"

                  Comment


                    #10
                    "Hi, I am looking at a boat in the PNW area .. with the intent to live aboard year round .. the boat has an installed Espar diesel heating system .. along with Marine heat reverse cycle"

                    Your marine air reverse cycle heater(s) will pull about 18 amps each when they are running in heat mode - much more on start up.

                    This is a guess not knowing their actual number or BTU capacity.

                    Even limiting the use to two units will compromise the 30 amp line and you have powered nothing else on the boat.

                    If you choose to go this way I propose you need at least 50/120 amps coming in..

                    Hope this helps
                    Northport NY

                    Comment

                    Working...
                    X