2211Hrs – To Fill Or Not To Fill ….

5 Responses

  1. Chuck says:

    Rather than using a headlamp, try getting a portable light and placing it on the hull to shine it sideways down the hull to see the imperfections..It works with drywall.

  2. John says:

    I have wondered about gas powered (absorbtion) fridges for use on a multihull. They are out of the question for a monohull because they dont work properly or safely if heeled over for a period of time, but I believe they have been used on multihulls. I asked on a boat design forum if anyone had any actual experience with this type of fridge on a catamaran, but got no replies. I think you would need to install a gas fridge so that any leakage of gas vents overboard and it would be very advisable to have a gas alarm as well. – John

  3. Sue says:

    We used a propane refrigerator that was salvaged from an old motor home on our Tiki 46. A 20lb tank of propane lasted about 2 weeks during the summer months and the fridge worked great at anchor and while sailing. The only problem was it gave off quite a bit of heat. It was in the deckpod where our bed was and at the height of a Florida summer the temp was just too high for comfort. Placed somewhere else it would likely have been less of a problem, but the fridge was too big to fit through the hull hatches so we were stuck with it up on deck.

    Gemini catamarans use a propane refrigerator and there are few complaints about them.

  4. John says:

    Thanks for the info Sue. I downloaded the instruction book for the Electrolux (Dometic?) Type Model RM123E fridge. This operates either on gas or electricity, but when on electric operation it uses more electricity than a normal compressor fridge, so I think that on a boat you would want to operate it on gas except when you have a shore power connection.

    The heat is produced at the back of the fridge so I would imagine that it should be possilble to ventilate this heat to outside the cabin. Might even be possible to have some kind of flap that would direct the heat outside in warm weather and inside in cold weather. The instructions for the RM123E fridge say that it uses about 0.39 lbs of gas per 24 hours on medium setting, so on that basis 20lbs should last about 7 weeks. However, this is only a tiny fridge, your one may have been larger. Also, any fridge will use more energy in a hot climate.

    For a conventional electric fridge on a sailing catamaran with a little used engine probably an outboard, the options are either a petrol/diesel generator and/or renewable energy, i.e. solar panels, windmill. The gas fridge option would seem to be lower in first cost than either of these and possibly a bit lighter in weight.. The renewable energy option is the lowest running cost, but there are times when it wont work at all.

  5. Enjoying the discussion on gas refrigeration. Has anyone thought of (or actually done it) putting the cooling coils in the ocean? Seawater is a much better conductor of heat than air and it seems likenitnwould be a much more efficient fridge if it didn’t have to vent to the air.

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