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Ice boxes/ fridges

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Nyaminyami View Drop Down
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Joined: 04 Oct 2009
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Post Options Post Options   Quote Nyaminyami Quote  Post ReplyReply Direct Link To This Post Topic: Ice boxes/ fridges
    Posted: 04 Oct 2009 at 10:24pm
Hi all,
Just joined the forum having recently purchased a CO32. Her cool box is anything but: basically a GRP box slung under the galley worktop adjacent to the cockpit bulkhead. There is no insulation whatsoever. I'm quite interested in finding out about the best/easiest way to insulate such an awkwardly located box: I could always remove the sink to ease access, but this won't help that much. Has anyone any experience of insulating under similar circumstances? I've done a bit of research [i.e. google] on various types of spray insulation, but I suspect this will be messy and hard to guarantee a uniform thickness with no cavities. I've already worked out what sort of refridgeration unit to use and thanks to fairly new electrics, wiring it all together shouldn't be too difficult [famous last words].

Thanks for any advice on offer.

Simon
Simon
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Wisdish View Drop Down
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Post Options Post Options   Quote Wisdish Quote  Post ReplyReply Direct Link To This Post Posted: 05 Oct 2009 at 10:26pm
Hi Simon,

First a few questions. What age is your Co32? Does it have the L shaped or U Shaped Galley? Are you certain there is no insulation? Most boats had at least an inch of foam outside of the GRP box, which provided it hasn't become waterlogged over the years provides fairly good insulation. If you really have no insulation then I would be tempted to use the expanding foam you can buy in aerosol cans. It should last a good few years and you should be able to apply it without serious voids.

We converted our existing coolbox to a fridge a couple of years ago using a Waeco fridge compressor unit which we mounted in the locker under the sink against the hull. We then fitted a cold plate in the cool box. We have found this highly successful especially when cruising away from home as as we can keep meat as long we would in a normal fridge.

Overall electricity consumption has not been an issue. We tend to leave it on all the time when we are on board, and haven't had to run the engine any more to charge the batteries than before we fitted the fridge.

If you want any more details on the installation please get back to me.

Mark
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moongirl View Drop Down
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Post Options Post Options   Quote moongirl Quote  Post ReplyReply Direct Link To This Post Posted: 06 Oct 2009 at 10:22pm
We converted Polar Star's box to a fridge by using blown in foam insulation - unfortunately I cannot remember what type it was! It was an easy job and it was just a question of waiting until surplus foam appeared from the holes. The box converted to a refrigerator worked well and consumed very little power.
COLIN
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James Moore View Drop Down
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Post Options Post Options   Quote James Moore Quote  Post ReplyReply Direct Link To This Post Posted: 07 Oct 2009 at 5:50pm
We converted Katishas box to a fridge with expanding foam - I think by polyfilla.
A note of caution - as it expands it exerts quite a lot of pressure so you need to brace the inside of the box to prevent the sides bowing in. I have subsequently removed the box we did this way and the filling was complete with no voids.
It was a very effective insulation.
Good luck!
James - Katisha
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Nyaminyami View Drop Down
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Post Options Post Options   Quote Nyaminyami Quote  Post ReplyReply Direct Link To This Post Posted: 11 Oct 2009 at 6:42pm
Thanks for the very helpful answers. Mark- I may well be in touch when I can get around to doing the conversion of the GRP box[definitiely single skin] in the New Year. I did post last week, but something must have happened at my end, so hope you didn't think I was ignoring you all!




Edited by Nyaminyami - 11 Oct 2009 at 6:44pm
Simon
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rogerfg7 View Drop Down
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Post Options Post Options   Quote rogerfg7 Quote  Post ReplyReply Direct Link To This Post Posted: 30 Jan 2010 at 5:52pm
Mark

Which model Waeco unit did you use?  Did you convert the box under the sink drainer (U shaped galley fitted out by JR in 2002) or the one adjacent to the companionway?  I would be interested in any information on fitting, ventilation for the compressor and cooling matrix, etc as I am tired of warm beer, coated in melted butter.
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Wisdish View Drop Down
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Post Options Post Options   Quote Wisdish Quote  Post ReplyReply Direct Link To This Post Posted: 01 Feb 2010 at 8:54pm
Hi Roger, it was the smallest Waeco compressor with a flat plate. I'll check when I next go to the boat over the next couple of weeks and get back to you.

Our boat was built in 1977 with the original L shape configuration, not the more recent U. We fitted the compressor unit below and outboard of the sink. This was not the easiest location to use but meant we didn't lose any usable locker space.

For ventilation I fitted a grill on the side of the locker into the area that the cooker gimbals.

I will try and take some photos and post them if the forum will allow, otherwise if you give me your email address I will send them you.

Mark
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Desi Stevens View Drop Down
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Post Options Post Options   Quote Desi Stevens Quote  Post ReplyReply Direct Link To This Post Posted: 19 Feb 2010 at 9:09am
Please post the photos and details  on the forum as I too am interested in the same project.
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moongirl View Drop Down
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Post Options Post Options   Quote moongirl Quote  Post ReplyReply Direct Link To This Post Posted: 19 Feb 2010 at 4:29pm
George from Concerto and myself are slowly building up a set of 'how to do it' articles for the Technical Forum. It would be great if I could have a short document plus pictures which George & I may edit (with acknowledgement of the Author). document needs to be in Word. My e-mail address is colinking@talktalkbusiness.net
Thanks
Colin King
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Wisdish View Drop Down
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Post Options Post Options   Quote Wisdish Quote  Post ReplyReply Direct Link To This Post Posted: 23 Feb 2010 at 9:22pm
Yes, I am already writing the technical note after I discussed it with George a couple of weeks ago. It will be similar in format to our technical note on Self Steering.  Family issues mean that it may be few weeks before I can complete it. However I did check on the boat the other weekend and the cold plate is a Waeco VD02 with a CU55 compressor.

If anyone has any urgent queries in the meantime please get back to  me and I will try and answer them in the meantime.

Mark
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