enlarging icebox, converting to refrigerator/freezer - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance
 Not a Member? 
  #1  
Old 08-15-2010
Senior Member
 
Join Date: Jan 2010
Location: Boston, MA
Posts: 519
Thanks: 1
Thanked 1 Time in 1 Post
Rep Power: 5
rmeador is on a distinguished road
enlarging icebox, converting to refrigerator/freezer

So the latest boat to strike my fancy during my search lacks a refrigerator. The icebox is rather small too. It's going to cost me at least a couple boat-bucks to have a refrigeration system professionally installed, so I've been thinking about how to get more for my investment: build a bigger fridge than I have now, add a real freezer, do the installation myself.

I haven't looked in detail (and I won't get a chance until/if I buy the boat, I think), but a cursory inspection tells me there is probably some dead space under the counter in the galley where the icebox is. What would be involved in increasing the size of the icebox to use that dead space? I presume some fiberglass work, some insulation... what's used for the interior surface? Awlgrip? Any tutorials on doing this? How hard is this, and is it worth it?

If I'm going to go to the trouble of enlarging the icebox, I think I'd like to build two compartments and have a legitimate freezer. I guess the divider between the two compartments wouldn't need to be as heavily insulated as the outside of the box. Any thoughts on this?

Lastly, is it feasible for me to do the install of the refrigeration system myself? Perhaps everything but the filling it with refrigerant part? Do I need to think about this when building my new icebox, or are they discrete steps? I was thinking perhaps of having someone professional design the system (and possibly supply the components), then I'd install them, then the pro would come back and charge the system with refrigerant.

Thanks for any guidance...
Reply With Quote Share with Facebook
  #2  
Old 08-16-2010
erps's Avatar
the pointy end is the bow
 
Join Date: Aug 2006
Location: La Conner, Washington
Posts: 6,112
Thanks: 2
Thanked 22 Times in 22 Posts
Rep Power: 9
erps will become famous soon enough erps will become famous soon enough
KollmannMarine Boat Refrigeration Specialist
__________________
Ray
S.V. Nikko
1983 Fraser 41
La Conner, WA


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


Boating for over 25 years, some of them successfully.
Reply With Quote Share with Facebook
  #3  
Old 08-16-2010
CaptainForce's Avatar
Senior Member
 
Join Date: Jan 2006
Location: living aboard since 1972
Posts: 1,697
Thanks: 0
Thanked 12 Times in 12 Posts
Rep Power: 9
CaptainForce will become famous soon enough
Nigel Caulder has a Marine Refrigeration book that excels with all the details you would need. Take care and joy, Aythya crew
Reply With Quote Share with Facebook
  #4  
Old 08-18-2010
QuickMick's Avatar
Senior Member
 
Join Date: Oct 2009
Location: California
Posts: 1,381
Thanks: 0
Thanked 3 Times in 3 Posts
Rep Power: 5
QuickMick is on a distinguished road
the setup in my galley has the icebox access panel on the counter, with the icbox running all the way to the cockpit, where there is another access panel from outside... if you are willing to sacrifice some space under your lazzerette you might be able to extend the icebox to that space... and get cold beverages in and out!
__________________
How inappropriate to call this planet Earth when it is quite clearly Ocean ~ Arthur C. Clarke

Quinn McColly
Macgregor Venture
Reply With Quote Share with Facebook
  #5  
Old 08-18-2010
deniseO30's Avatar
Move over Joan Rivers!
 
Join Date: Nov 2006
Location: Bristol pa
Posts: 5,854
Thanks: 51
Thanked 72 Times in 64 Posts
Rep Power: 9
deniseO30 will become famous soon enough deniseO30 will become famous soon enough
RM the lid is the most often ignored but should be as well insulated and as airtight as you can make it.
__________________
Denise, Bristol PA, Oday 30. On Tidal Delaware River, Anchor Yacht Club. New Website!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

my current "project"!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #6  
Old 01-18-2011
Senior Member
 
Join Date: Jan 2010
Location: Boston, MA
Posts: 519
Thanks: 1
Thanked 1 Time in 1 Post
Rep Power: 5
rmeador is on a distinguished road
Well, the boat I originally posted about is the one I bought, and I'm finally nearing the point where I want to move forward with this project. The space I have available is between 5 and 6 cu ft. I'm still hoping I can find reasonably priced aerogel insulation, in which case I can save a ton of volume on insulation, and it might be more like 8 cu ft. I plan on allocating about 1.5-2 cu ft to the freezer. I want my freezer to be COLD! Cold enough to keep things for a long period of time, and cold enough to keep icecream, etc. I plan on including a small fan inside each compartment to keep the temperature uniform throughout.

I've read that I should use two compressors for this, but I really don't want the added expense. Is it possible to get a solenoid valve or two that would allow me to have two evaporators (one fridge, one freezer) and run them both off the same compressor? The valves would permit me to only run the side that needs to be cooled instead of being forced to run them both at once if I connected them in series or parallel. If such a system can be built without too much difficulty and expense, is there also an off-the-shelf system to control it (i..e temperature sensors and valve/compressor controller)? I can build the controller if need be, but it would probably be easier and more reliable to buy one. Can anyone offer a guess as to which compressor(s) I should be looking at? I have no idea how to estimate the capacity.
__________________
1979 Gulfstar 37 Laissez Faire
Reply With Quote Share with Facebook
  #7  
Old 01-18-2011
sailingdog's Avatar
Telstar 28
 
Join Date: Mar 2006
Location: New England
Posts: 43,291
Thanks: 0
Thanked 9 Times in 9 Posts
Rep Power: 13
sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice
Don't forget that the refrigerator/freezer should have a drain, but that drain should be closed to prevent cold air from leaking out through it.
__________________
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.
Reply With Quote Share with Facebook
  #8  
Old 01-18-2011
Bene505's Avatar
Glad I found Sailnet
 
Join Date: Jul 2008
Posts: 3,543
Thanks: 5
Thanked 37 Times in 36 Posts
Rep Power: 7
Bene505 will become famous soon enough Bene505 will become famous soon enough
You may be able to design it so there is enough clod "leaking" from the freezer to keep the fridge cold. (It's really the heat the moves, not the cold, but you can still picture it the other way.) Maybe have a few layer of the separating wall removable so you could adjust the amount of insulation between the two boxes. Then you could use trial-and-error to figure out how adjustably-thick to make the wall. You could put the thermostat on the fridge side, since a fridge has a small acceptable temperature range. On the other hand, with a freezer you probably don't care if it's 10 degrees or -20 degrees, as long as it never gets close to 32.

(Full disclosure, I got like a 37 in thermodynamics. That was passing/good grade in that class by the way.)

Regards,
Brad
__________________
Posts you might like:

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

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
. .
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
. .
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
. .
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
. .
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #9  
Old 01-18-2011
Bene505's Avatar
Glad I found Sailnet
 
Join Date: Jul 2008
Posts: 3,543
Thanks: 5
Thanked 37 Times in 36 Posts
Rep Power: 7
Bene505 will become famous soon enough Bene505 will become famous soon enough
Quote:
Originally Posted by sailingdog View Post
Don't forget that the refrigerator/freezer should have a drain, but that drain should be closed to prevent cold air from leaking out through it.
You could also use a pump with a hose on the inside that goes down to the bottom. Either a corner of the bottom, or an indent into the bottom so you get the last bit out.

Another thought...

Insulate like crazy, way more than you think you have to. Thin insulation eats up amps. Away form the dock you end up buying wind generators, solar panels and/or a nice Honda generator+gas to replace those amps. Add another inch of insulation to the icebox if you can, then another, then another.

Regards,
Brad
__________________
Posts you might like:

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

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
. .
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
. .
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
. .
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
. .
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #10  
Old 01-18-2011
all these confusing ropes
 
Join Date: Aug 2006
Posts: 166
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 8
dohenyboy is on a distinguished road
the glacier bay refrigeration system uses a solenoid to run two cold plates with one compressor.
it comes with a control panel which runs the freezer plate until you reach the desired temperature for the freezer plate, then it runs for the refrigerator plate. nice. but more expensive than most systems out there.
Reply With Quote Share with Facebook
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

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



All times are GMT -4. The time now is 04:24 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012