Reply
 
Thread Tools Display Modes
 
Old 02-10-2011, 12:05 PM   #1
Member
 
Chris491's Avatar
 
Join Date: Aug 2010
Posts: 18
Nova Kool? Dometic? Norcold?

I need a marine 'fridge in my 31-foot Taiwan trawler:* the one that was there originally evidently died and the previous owner slid an AC unit into the space.* I am looking at several units.* My current favorite is the Nova Kook R4500, as that seems to have the largest volume, smallest freezer and lowest amperage draw;* my second choice is the Dometic CR-1110, which looks to fit well but has a larger freezer than I think I want and the highest amperage draw.* My third and fourth choices are the Norcold DE-0041 or DE-0788, which have too-large freezers but moderate amperage draw.

I would love to hear from folks who have one of these units and get their feedback.* I'd also like to hear from anyone who has recently gone through this same exercise (or is now going through it) and hear their opinions.* Thanks.
__________________
Advertisement

Chris491 is offline   Reply With Quote
Old 02-10-2011, 12:20 PM   #2
Guru
 
City: Carefree, Arizona
Country: usa
Vessel Name: sunchaser V
Vessel Model: DeFever 48
Join Date: Apr 2008
Posts: 6,371
RE: Nova Kool? Dometic? Norcold?

I agree with your choices. I replaced a Tundra (Dometic) with Nova Kool 3 years ago.
__________________

sunchaser is offline   Reply With Quote
Old 02-10-2011, 01:37 PM   #3
Scraping Paint
 
City: -
Country: -
Join Date: Oct 2007
Posts: 13,748
RE: Nova Kool? Dometic? Norcold?

To add confusion to your search, you might also check out Isotherm. When our 14 year-old Norcold appeared to be dying a couple of years ago we researched the the heck out of what was available in a similar size and was AC/DC. Read reviews, talked to people on various boating forums, etc. In the end we selected an Isotherm unit. For whatever reason the Norcold decided to revive itself so we decided to let it keep going and not worry about a replacement until it truly died. But when that day comes, we'll go with the Isotherm unit we selected unless there's something we feel at the time is better.
Marin is offline   Reply With Quote
Old 02-10-2011, 01:51 PM   #4
TF Site Team
 
Larry M's Avatar
 
City: JAX, FL
Country: USA
Vessel Name: Hobo
Vessel Model: Krogen 42-120
Join Date: Nov 2008
Posts: 5,742
RE: Nova Kool? Dometic? Norcold?

Here's another option.* We put in a SeaFreeze custom unit*3+ years ago and like it.* They built the unit to our dimensions with added insulation.* There's separate compressor for the freezer*and refrigerator.* The refrigerator is about 6 cubic ft and the freezers about 2.5.* Not cheap though.

http://www.seafreezeinc.com/marine_refrigerators.shtml
Attached Thumbnails
Click image for larger version

Name:	new refer 014.jpg
Views:	211
Size:	111.6 KB
ID:	4731  
Larry M is online now   Reply With Quote
Old 02-10-2011, 02:12 PM   #5
Guru
 
Capn Chuck's Avatar
 
Join Date: Jan 2009
Posts: 899
RE: Nova Kool? Dometic? Norcold?

And to add more to your confusion
http://tinyurl.com/4vgzay8
We highly recommend the Vitrifrigo over all of the others you are considering. Chuck
Capn Chuck is offline   Reply With Quote
Old 02-10-2011, 06:27 PM   #6
Senior Member
 
Datenight's Avatar
 
City: Noank, CT
Country: USA
Vessel Name: Datenight
Join Date: Jan 2008
Posts: 415
RE: Nova Kool? Dometic? Norcold?

We went with the Isotherm 12 volt after a lot of research several years ago. It cut our amp use by %40.

Rob
37' Sedan
Datenight is offline   Reply With Quote
Old 02-10-2011, 09:18 PM   #7
Senior Member
 
Rusty's Avatar
 
City: WA
Country: US
Join Date: Jan 2011
Posts: 214
RE: Nova Kool? Dometic? Norcold?

We replaced the original refrigerators in our boat last fall with two Nova Kool 4500's. So far, they seem to perform as advertised.*

I think the original units were Norcold. They were about 2.5 cubic feet inside while the new units are 4.3 cu ft. even though the physical size is slightly smaller. It was an easy way to more than double the usable space.*

The original refrigerators were AC/DC, the Nova Kool's are DC only.

Before and after photos. The new units have black fronts.
Attached Thumbnails
Click image for larger version

Name:	img_0839.jpg
Views:	210
Size:	60.3 KB
ID:	4739   Click image for larger version

Name:	img_0865.jpg
Views:	223
Size:	87.0 KB
ID:	4740  
Rusty is online now   Reply With Quote
Old 02-11-2011, 06:37 AM   #8
Guru
 
City: North Charleston, SC
Country: USA
Join Date: Sep 2010
Posts: 4,390
Nova Kool? Dometic? Norcold?

I had an Isotherm in my previous boat and have a Nova Kool in my Camano. Neither has had any problems.

I have read nothing but complaints about Norcold, but then, this is the Internet so that's to be expected.

If you spend a lot of time on the hook, efficiency is very important and that's what I would look for second to fitting in the boat.

It's hard to judge efficiency of a refrigerator becase, while*you can easily measure the current draw when the compressor is running, it doesn't run continuously.* A better insulated refrigerator will not have to run the compressor as often in a given time period as a poorly insulated refrigerator at a given ambient temperature.

-- Edited by rwidman on Friday 11th of February 2011 07:41:07 AM
rwidman is offline   Reply With Quote
Old 02-11-2011, 07:41 AM   #9
Guru
 
JohnP's Avatar
 
City: Toms River
Country: USA
Vessel Name: D U E T T E
Vessel Model: 1996 36' Island Gypsy
Join Date: Dec 2009
Posts: 1,109
RE: Nova Kool? Dometic? Norcold?

Best refrigeration I ever had on a boat was a cold plate engine driven system by Sea Frost.*** Made ice fast- An hour operation kept the box cold for 24hrs.* They can have an electric backup for when you are not cruising.* The condenser is water cooled and it was reliable.**


On our IG we have the original 1983 Engel 2.5 under the counter. Works well AC and DC, I think the fact the builder provided a vent to the outside behind the unit helps it work so well.

Going to look into the isothems be nice to get a 4cu ft in the same space.

Amazing how long a refrigerator can last, but the PO had the boat on a mooring and maybe the unit was not used much.

JohnP
JohnP is offline   Reply With Quote
Old 02-11-2011, 08:52 AM   #10
Guru
 
City: Carefree, Arizona
Country: usa
Vessel Name: sunchaser V
Vessel Model: DeFever 48
Join Date: Apr 2008
Posts: 6,371
RE: Nova Kool? Dometic? Norcold?

In the front section of the latest PMM there is some good info supporting 12 V compressors used by Danfoss.
sunchaser is offline   Reply With Quote
Old 02-11-2011, 10:04 PM   #11
Scraping Paint
 
City: -
Country: -
Join Date: Oct 2007
Posts: 13,748
RE: Nova Kool? Dometic? Norcold?

Actually I think Danfoss makes the compressors used by the more reliable brands of refrigerators. I don't think Danfoss is a user of compressors.* Isotherm refrigerators, for example, use Danfoss compressors.
Marin is offline   Reply With Quote
Old 02-12-2011, 07:06 AM   #12
Guru
 
City: Carefree, Arizona
Country: usa
Vessel Name: sunchaser V
Vessel Model: DeFever 48
Join Date: Apr 2008
Posts: 6,371
RE: Nova Kool? Dometic? Norcold?

Marin - To quote the statement from Danfoss on page 17 of the latest PMM - with my bold emphasis of the word used

"The polyphase induction -couples versions as usedon the current line of Danfoss ---"

My guess is they buy these from a supplier as they assemble their compressors. This is similar to what Boeing does on virtually every (well only the engines, electric panels, switch gear, wing spars, instruments, tires, brakes, headsets, carpet, seats, fuel tanks, pumps, hoses,*actuators, windows, glue, what did I miss?)*piece of the 787 which is yet to be deemed airworthy by the FAA.
sunchaser is offline   Reply With Quote
Old 02-12-2011, 07:58 AM   #13
Member
 
Join Date: Jan 2011
Posts: 20
RE: Nova Kool? Dometic? Norcold?

Most all straight 12 or 24 volt manufactued boxes will utilize the Danfoss compressor & electrical module, except Norcold (we in the industry nickname Nevercold) which uses a 20 volt swing compressor that they step up or down power to with a propriortary power module that is expensive.

Typically the Danfoss boxes will have less cool down & run time than the Norcolds given the same size & insulated box.


The Danfoss units have fan forced cooling where the Norcolds never did (however I believe I read somewhere that they now do) and heat has always been the biggest killer of the Norcolds...


Steve~
spcoolin is offline   Reply With Quote
Old 02-12-2011, 08:13 AM   #14
TF Site Team
 
Larry M's Avatar
 
City: JAX, FL
Country: USA
Vessel Name: Hobo
Vessel Model: Krogen 42-120
Join Date: Nov 2008
Posts: 5,742
RE: Nova Kool? Dometic? Norcold?

Quote:
spcoolin wrote:

Most all straight 12 or 24 volt manufactued boxes will utilize the Danfoss compressor & electrical module...,
Steve:* Your right.* We have a Danfoss*BD35 compressor and a BD50.* The electronic modules are interchangeable and they will run on either 12 or 24 volts.* We bought a spare on on line for ~$200.00.* The new Danfoss compressors also have great diagnostics.*

*
Larry M is online now   Reply With Quote
Old 02-12-2011, 11:30 AM   #15
Guru
 
Daddyo's Avatar


 
City: Cruising East Coast US
Country: USA
Vessel Name: Grace
Vessel Model: DeFever 48
Join Date: Apr 2008
Posts: 2,441
RE: Nova Kool? Dometic? Norcold?

We've got two Dometics with the Danfoss compressors. The one on the flybridge is mounted into the helm cowling and there for has tons of ventilation and works great. The one in the galley only works flawlessly in the summer when I turn on the 12v computer mushroom fan I added to the thru-wall vent behind the fridge.
Daddyo is offline   Reply With Quote
Old 02-12-2011, 03:56 PM   #16
Scraping Paint
 
City: -
Country: -
Join Date: Oct 2007
Posts: 13,748
RE: Nova Kool? Dometic? Norcold?

Quote:
sunchaser wrote:

"The polyphase induction -couples versions as usedon the current line of Danfoss ---"
Right, but that's not what you said.* You said "info supporting compressors used by Danfoss."* That's not the same thing as saying info supporting components used by Danfoss in their compressors.

It's just samantics I suppose, but perhaps you can see why your satement was easy to misinterpret.

*
Marin is offline   Reply With Quote
Old 02-12-2011, 05:40 PM   #17
Guru
 
City: Carefree, Arizona
Country: usa
Vessel Name: sunchaser V
Vessel Model: DeFever 48
Join Date: Apr 2008
Posts: 6,371
RE: Nova Kool? Dometic? Norcold?

Marin

There are oh so*many*little things to worry about when talking*samantics (oops to*your spell check) in* your satement ( your oops again).

On a more serious note, the 12 V motor used by*Danfoss is very efficient according to the PMM statements.

I enjoyed your piece about Kenmore in a magazine I saw at the Seattle boat show. It was well written, concise*and stayed on point.
sunchaser is offline   Reply With Quote
Old 02-12-2011, 07:13 PM   #18
Scraping Paint
 
City: -
Country: -
Join Date: Oct 2007
Posts: 13,748
RE: Nova Kool? Dometic? Norcold?

Thanks for the kind words on the article but I'm a bit puzzled as I haven't written an article for a magazine in years. I think the last time I wrote a magazine article about anything was when I was asked to review the then-new Cub Crafter's Top Cub on floats for a national aviation magazine. Kenmore has one and I got checked out in it, flew it around a bunch in and out of the little lakes up in the Cascades, and got a factory tour from the president of Cub Crafters over in Yakima. But that was sometime in the early 2000s. I've since had a book about Kenmore Air published but no magazine article. Maybe somebody's writing stuff and using my name That's okay as long as they split the fee.

One of the primary reasons we selected an Isotherm unit to replace our Norcold (when it decides to finally die) is the Danfoss compressor. Everything we read about them at the time indicated that was the way to go as far as a compressor was concerned. Glad to hear from your mention of the PMM article that they are still highly regarded.
Marin is offline   Reply With Quote
Old 02-13-2011, 06:31 AM   #19
FF
Guru
 
FF's Avatar
 
Join Date: Oct 2007
Posts: 16,530
RE: Nova Kool? Dometic? Norcold?

IF you wish to check Pro Boat builder a couple of years ago they had a very comprehensive 2 part article on DC refrigeration.

The power controller and its method of selecting the compressor speed and time of operation are as important as the compressor to low daily amperage .

The article claimed the lowest amperage would be a 24 hour a day operation at slow speed , but the equipment aseembelers were worried owners would complain "it never shuts off".

SO 50 min an hour is used .
FF is offline   Reply With Quote
Old 02-13-2011, 08:09 AM   #20
Guru
 
Forkliftt's Avatar
 
City: Biloxi Mississippi
Country: USA
Vessel Name: Patricia Louise II
Vessel Model: 1983 42' Present Sundeck
Join Date: Oct 2007
Posts: 2,433
RE: Nova Kool? Dometic? Norcold?

FWIW,
On our 3 year old Tundra/ Dometic T80 I just recharged it for the second time. Danfoss Compressor BD35F. Apparently I have a leak but after several hours yesterday with a sniffer and liquid leak detector I failed to find it. As with the last recharge, it cools/ freezes better than ever. The manual says "Do not attempt to charge unit in field". A pair of saddle taps, a non contact temp gun, amp meter, freon and free advice got me back to a working pressure. There is NO info online to tell you what pressure to recharge to. This is probably a temporary fix- but it's working great now.
When we replaced the same size Norcold, the two things I didn't care for were that the door latches are a bit cheesey- and you can't swap out panels in the front.
__________________

Forkliftt is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Norcold refrigerator skipperdude General Discussion 25 04-19-2011 04:01 PM
Any Nova (Fu Hwa - FHB) owners here? carvendive Other Makes 0 07-20-2009 01:22 PM




All times are GMT -5. The time now is 04:56 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012