SailNet Community - Reply to Topic
Thread: Refrigeration Conversion Reply to Thread
Send Trackbacks to (Separate multiple URLs with spaces) :
Post Icons
You may choose an icon for your message from the following list:

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

  Additional Options
Miscellaneous Options

Click here to view the posting rules you are bound to when clicking the
'Submit Reply' button below

  Topic Review (Newest First)
12-04-2006 02:41 PM
kavakava I installed a Technautics cold plate system in my old Gulfstar. Installation was easy for this novice, an it worked great. After I reinsulated the box by drilling 40 holes and squirting in foam insulation, I used very little juice and managed to freeze the tomatoes. Never had such cold beer!!!
12-03-2006 01:14 PM
SVDistantStar Im working on rebuilding my ice box aboard my 36' Pearson. The current icebox is a massive cave with almost no insulation. Im planning to rebuild it into a 3.5cuft box with at least 5'' of insulation all around. The cold plate system ive chosen is going to be aabout $850 from West Marine and is made for 6.5cuft with 3'' of insulation. Im not sure if its going to be a really good icebox or a freezer.
12-03-2006 09:36 AM
sailingdog The "Pelletier" effect coolers are useless in really hot weather, as they can only cool a certain amount from the ambient temperature. They are also hugely inefficient. Using a "walmart" refrigerator and inverter is probably not a great idea, as the refrigerator is probably not insulated well enough for use on a boat—most small refrigerators make the assumption that they'll be used in a controlled climate area, and a boat is generally not one. A truck, like the one that Gregpecaut, can afford to run the A/C, which is often not the case on a sailboat, if it even has A/C at all.

Also, you have the inefficiency of converting the DC to AC using the inverter...if you don't think they're inefficient, just touch one that's been running a while and see how hot it is... that heat is electricity that has been converted.

Best small refrigerators for use on a sailboat are probably the Engel "Swing compressor" units. I've used one and they're very efficient. Most are top-loading designs, which helps keep the cold air inside the box when you have to open it.
12-03-2006 12:59 AM
Originally Posted by gforcepdx
i agree with faster on this but what about the wallmart fridge and the inverter ??? curious... too janky ???

The only experience I've had with the plug-in coolers is I've seen them run down a car battery overnight - So I'm assuming the power usage is too high.

These units usually use a "Peltier effect" cooler system, which is power hungry compared to conventional compressor based coolers (for equivalent cooling).

On top of that are losses factored in by the use of the inverter as well.
12-03-2006 12:32 AM
camaraderie Jones...sometimes I just decide to keep my mouth shut when I know people don't want to hear the answer...especially when it is a matter of beer money!
12-02-2006 09:40 PM
seeking reply from...faster...

i agree with faster on this but what about the wallmart fridge and the inverter ??? curious... too janky ???
10-14-2006 10:28 PM
Faster Any refrigeration specialist can add a cold plate to your icebox, plus the necessary compressor etc, but I doubt you'll get it done for less than the $700-800 that you mentioned as too expensive.Other than getting lucky at a marine recycle store, anything you cobble together may not be reliable in the end. Don't forget to check what your "cheap" alternative will cost you in power (electrical) consumption.
10-14-2006 07:18 PM
gregpecaut I drive truck and many add refidg to these. Many have tried marine, and RV units, but the ones that have the most sucess use an apartment fridg (from walmart) and an inverter. Cheap and it works! Adding insulation would make it even better.
01-16-2005 06:27 PM
Refrigeration Conversion

If I remember the story a guy put the cooling part of the refrigerator on the keel or on both sides of it. the lines ran back into the boat and to a standard refrigeration compressor and then into his ice box he said it worked great and was cheep. I would be a little nervous about anything through my hull but if you used mill spec copper with a thick wall I guess it would last a long time as long as the electrolisis did not get it.
01-12-2005 01:36 PM
Refrigeration Conversion

The Spring 2004 issue of boatworks had an article about using an inexpensive refrigerator to fit in an icebox.
This thread has more than 10 replies. Click here to review the whole thread.

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

For the best viewing experience please update your browser to Google Chrome