what's the word on marine fridges these days? - SailNet Community
Reply
 
LinkBack Thread Tools
post #1 of 19 Old 06-21-2010 Thread Starter
Junior Member
 
Join Date: Jun 2010
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Talking what's the word on marine fridges these days?

I've been out cruising for a while. My Glacier Bay fridge draws 34 amps and i am tired of running the generator every time i need to cool the icebox...anyone have any suggestions on the best, most efficient coldplate/compressor technology?
sallysailor is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 19 Old 06-21-2010
Banned
 
Join Date: Mar 2006
Location: subject to change
Posts: 1,264
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
We are huge fans of Frigoboat. We have had the keel-cooled version for about 6 years now. It is virtually silent and the compressor takes very little space. We have 2 LARGE fridge boxes, one of which includes a small freezer. We insulated them heavily including 2 layers of reflectix. We draw a total of only about 30 amp-hours per day in 70-degree water. Their website gives good tables & formulas to estimate your usage.

They're not cheap, we paid about $1500 (?) with a boat show discount back then. But we were able to do the install ourselves, and its been very reliable since. Wait for opinions from some others, we've heard there were some problems with Frigoboat a few years ago, don't know if its been resolved yet.
eryka is offline  
Quote Quick Reply Share with Facebook
post #3 of 19 Old 06-21-2010
Telstar 28
 
sailingdog's Avatar
 
Join Date: Mar 2006
Location: New England
Posts: 43,290
Thanks: 0
Thanked 14 Times in 12 Posts
Rep Power: 14
         
I'm a big fan of the Engel portable refrigerators. Most of them are dual voltage and will switch from 12 VDC to 110 VAC automatically if connected properly.

Sailingdog

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.

Still—DON'T READ THAT POST AGAIN.
sailingdog is offline  
Quote Quick Reply Share with Facebook
post #4 of 19 Old 06-21-2010
Senior Member
 
CaptainForce's Avatar
 
Join Date: Jan 2006
Location: living aboard since 1972
Posts: 1,715
Thanks: 0
Thanked 12 Times in 12 Posts
Rep Power: 10
 
My 12VDC Technautics refrige/freezer draws less than 1/10th of the amps you describe. I think any of the manufacturers that use the Danfloss compressor with the small fan for air heat exchange would be the most efficient. Take care and joy, Aythya crew
CaptainForce is offline  
Quote Quick Reply Share with Facebook
post #5 of 19 Old 06-21-2010
TQA
Bombay Explorer 44
 
TQA's Avatar
 
Join Date: Apr 2009
Posts: 2,888
Thanks: 0
Thanked 78 Times in 74 Posts
Rep Power: 7
 
I have an Adler Barbour Super Cold Machine and am well impressed with it. It makes 2 trays of ice cubes a day, keeps a large top opening fridge cold, all for about 40 amp hours a day.

I do not even use the water cooling option. Current Location the Windward Isles.
TQA is offline  
Quote Quick Reply Share with Facebook
post #6 of 19 Old 06-21-2010
Glad I found Sailnet
 
Bene505's Avatar
 
Join Date: Jul 2008
Posts: 3,816
Thanks: 14
Thanked 51 Times in 50 Posts
Rep Power: 8
   
Quote:
Originally Posted by sallysailor View Post
I've been out cruising for a while. My Glacier Bay fridge draws 34 amps and i am tired of running the generator every time i need to cool the icebox...anyone have any suggestions on the best, most efficient coldplate/compressor technology?

Do you mean 34 amp hours a day, or is it really burning 34*12.5=425 watts? If the latter, any idea how much it's cycling on? 425 watts seems ok if it only runs for an hour or two each day. That much is supportable by a 170+ watt solar panel.

Regards,
Brad

.
.
Great minds discuss ideas;
Average minds discuss events;
Small minds discuss people.
.
The best minds discuss sailing (and a little bit of politics). I don't know why. It's a mystery!
.
Bene505 is offline  
Quote Quick Reply Share with Facebook
post #7 of 19 Old 06-21-2010
Senior Member
 
skipgundlach's Avatar
 
Join Date: Oct 2002
Posts: 153
Thanks: 2
Thanked 1 Time in 1 Post
Rep Power: 13
 
Quote:
Originally Posted by sallysailor View Post
I've been out cruising for a while. My Glacier Bay fridge draws 34 amps and i am tired of running the generator every time i need to cool the icebox...anyone have any suggestions on the best, most efficient coldplate/compressor technology?
Two things:

I agree about frigoboat and the keel cooler. Our box was built new from the outside in with reflective barrier first (aluminum foil epoxied to the frame), air barrier (doorskin battens to the AL foil) and then 6" of extruded polystyrene which had been epoxy coated first, with laddered joints in bottom, top and corners to make air path even more convoluted in case any epoxy missed a joint space, epoxied as it went in. Very efficient...

Second, do you have cold plates, or do you REALLY pull 34A when an evap system is running?

The keel cooler (and the similarly acting one which can go in the sink drain) doesn't require a water pump or to run a fan for cooling, increasing the efficiency/cutting the AH costs significantly.

Frigoboat has a smart speed sensor which makes the Danfoss idle when it's not under a lot of new-heat load, but kicks it up to full when needed. Therefore, the compressor runs about 90% of the time, but the total AH is better than running full blast for a while and then off most of the time...

L8R

Skip
skipgundlach is offline  
Quote Quick Reply Share with Facebook
post #8 of 19 Old 06-21-2010
Senior Member
 
Join Date: Oct 2000
Location: Portland, OR
Posts: 687
Thanks: 1
Thanked 8 Times in 8 Posts
Rep Power: 15
 
Thumbs up another vote for FrigoBoat

I did my own install of the Frigoboat system with keel cooler.
When it runs, and that's not too often, it draws about 3.8 amps. We have a well insulated box from the factory, and I have added some more external insulation.
One thermostat died, and the replacement was around $30. It keeps the box at about 37 to 38 degrees. If I turn the control above about "5" it can drop the temp to 20 easily.
We have two GC house batteries and can easily run the boat at anchor in the summer for two full days and still have ample power to start the diesel without invoking the spare "starting / emergency" battery.
I have install pics over at a longish refrig. thread on the EY.org site. Let me know if you want the URL.

L
olson34 is offline  
Quote Quick Reply Share with Facebook
post #9 of 19 Old 06-21-2010
Senior Member
 
Join Date: Jun 2006
Posts: 5,006
Thanks: 5
Thanked 18 Times in 18 Posts
Rep Power: 12
     
The newest insulation for refrigerators are the aerogels.

R value 10+, "frozen smoke", the next best thing to a complete vacuum.



Source: Aerogel (Wikipedia)

But they are too expensive!

No, not anymore, you can buy the stuff in rolls now, they are even putting it into clothing.




What are you pretending not to know ?

Please support my
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
wind_magic is offline  
Quote Quick Reply Share with Facebook
post #10 of 19 Old 06-21-2010
Senior Member
 
RichH's Avatar
 
Join Date: Jul 2000
Location: Pennsylvania
Posts: 3,389
Thanks: 23
Thanked 144 Times in 134 Posts
Rep Power: 16
 
I prefer SeaFrost, easy for DIY installation and use the Danfoss 12 vdc compressors. Service, tech. advice, etc. is outstanding.

The 'quality' of the box/freezer insulation is the 'key'.
RichH is offline  
Quote Quick Reply Share with Facebook
Reply

Quick Reply
Message:
Options

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

Password:


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

Email Address:
OR

Log-in









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.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
THE Yacht Builder List T37Chef Boat Review and Purchase Forum 26 07-08-2011 05:51 AM
The Best and Worst Days at Sea John Kretschmer Her Sailnet Articles 0 12-01-2002 07:00 PM
Marine Radios Overview Jim Sexton Seamanship Articles 0 09-30-1999 08:00 PM
Marine Radios Overview Jim Sexton Gear and Maintenance Articles 0 09-30-1999 08:00 PM
Marine Radios Overview Jim Sexton Her Sailnet Articles 0 09-30-1999 08:00 PM

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
Trackbacks are On
Pingbacks are On
Refbacks are On

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