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Old 04-13-2021, 02:39 PM   #1
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Let's talk deep freezers

Going full time and will need a deep freezer. We have plenty of room. Any suggestions or recommendations? What about power and consumption?
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Old 04-13-2021, 03:18 PM   #2
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What boat?
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Old 04-13-2021, 04:36 PM   #3
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I have 2. The Dometic runs on DC and A/C. It has a freezer section and a little pocket hole that does not freeze. Good for milk etc.

The other freezer is a 5cf chest I bought at lowes and run on an inverter.Click image for larger version

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Old 04-13-2021, 06:35 PM   #4
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I've spent a lot of time on your boat with the previous owner. Where did you put two freezers?
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Old 04-13-2021, 06:53 PM   #5
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I'm having trouble locating a Dometic freezer only. What model is yours?
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Old 04-13-2021, 07:02 PM   #6
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Quote:
Originally Posted by Crime Pays View Post
I'm having trouble locating a Dometic freezer only. What model is yours?
I'm not ASD, but I can say that most of the Dometic (and other) "portable" units can be run as either a freezer or a refrigerator (but not both simultaneously unless you get a special one that can do that*). So the 40, 50, 110, etc. single compartment ones can be either a freezer or a refrigerator (you set the temp you want).

The reason the little "well" does not freeze is that the walls of that compartment are only plastic (the other walls are the cooling coils) and plus it's over the compressor. If you are running it as a fridge, that area is still colder than ambient, but not as cold as the rest of the fridge.

Note that they will not all get down to the same temp. For example my Dometic CF Series with the Danfoss/Secop compressor (vintage 2015 but they still make them now) only goes to 0F; whereas the Dometic CFX versions (they use their own compressor if I remember correctly) will go down to -8F

*For example Dometic CFX75 or CFX95 have two compartments and you can have one freezer/one refrigerator, or two of the same -- they only have one compressor but two thermostats (and some sort of valve).
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Old 04-13-2021, 07:11 PM   #7
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I'm leaning towards a 7 cubic foot home style chest freezer. We have plenty of room and according to the internet, it should draw less than 500 watts when running. I'm thinking a well-insulated freezer will not run more than an hour or two a day. Plus, for $75 I can take the 5-year extended warranty.
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Old 04-13-2021, 07:59 PM   #8
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We have an inexpensive front loading AC freezer on our boat. It is not on an inverter, it just gets power whenever we run the generator or are on shore power. In the summer, that is 6 to 8 hours a day as we use the air conditioner at night. In the colder months, it is perhaps two hours a day.


I've considered putting it on a little stand alone inverter, but honestly, if you only open it once or maybe twice a day, it keeps stuff frozen with no issues. Even bait. The fuller it is, the better it does.


I have also considered adding a layer of insulation to the outside of the box, but have not bothered with it yet.
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Old 04-13-2021, 08:00 PM   #9
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Sea Freeze out of Bellingham, Wa is the only way I would go. I have been through 3 boats in the last 30 years but only one Sub zero 12v freezer all this time(it has followed me from boat to boat). The boat has lost power but I have never lost any food in the Sea Freeze.

Sea Freeze of America - Custom Marine Refrigeration, Deck Freezers, Cold Plates
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Old 04-13-2021, 10:17 PM   #10
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Quote:
Originally Posted by Crime Pays View Post
I've spent a lot of time on your boat with the previous owner. Where did you put two freezers?
5cf on the sundeck, the Dometic in the salon. Wife uses it as her chair table.
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Old 04-13-2021, 10:52 PM   #11
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Bog standard bar fridge sized 4 draw front loading Kmart special for us.
Cost about $100 on sale 10 years ago
Works a treat
Uses a lot less power than the big Samsung fridge freezer

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Old 04-13-2021, 11:52 PM   #12
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Small household Kenmore chest freezer on our boat. 15 years,4-5 months straight every year and going strong. Runs off our inverter, genset or shore power.

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Old 04-14-2021, 09:01 AM   #13
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I've been very please with the GE chest freezers. They are inexpensive to buy, and remarkably energy efficient.


For power consumption, go look at the EnergyStar web site from the EPA, and look at the consumption figures for the various freezers you are considering. I have found those published numbers to be spot on. They list KWH consumer per year, so divide by 365 to get the daily consumption. And since many boats track power in Ah, further divide the daily KWH figure by your battery voltage and you will get a good prediction of how many Ah the freezer will consume.
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Old 04-19-2021, 12:37 PM   #14
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Also a sea freeze fan. 24v, very efficient. Built in.
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Old 04-19-2021, 12:43 PM   #15
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Dometic CFX3-100 99L Portable Fridge/Freezer. You can get all freezer or fridge or a unit that has two separate compartments that will do either fridge or freezer.

Unit is both 110AC and 12v/24v. I have both AC end DC wired so if AC fails it will run on DC.

Had unit on Flybridge almost 5 years and it has worked flawlessly. Highly recommend. Search on Google multiple suppliers available.
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Old 04-19-2021, 12:49 PM   #16
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We have a small 7 cubic foot GE chest freezer and a Waco that runs on AC or DC. We have a Northern Lights generator so power consumption is not an issue.
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Old 04-19-2021, 01:01 PM   #17
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We used a $125.00 Frigidaire 5 cu ft chest freezer for 20 years. Ran off the inverter and kept contents at 0-5 deg F 100% of the time. Average daily power consumption was 100 amps at 12v. (Made 6 trays of ice daily. For making ice we used the plastic no-spill ice trays with lids - OXO, $9.99 ea at Amazon.)
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Old 04-19-2021, 01:33 PM   #18
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Power consumption

Quote:
Originally Posted by MOJO View Post
We used a $125.00 Frigidaire 5 cu ft chest freezer for 20 years. Ran off the inverter and kept contents at 0-5 deg F 100% of the time. Average daily power consumption was 100 amps at 12v. (Made 6 trays of ice daily. For making ice we used the plastic no-spill ice trays with lids - OXO, $9.99 ea at Amazon.)
100 daily amp-hours? Meaning average 4.1 amp draw over 24 hours? Many of us are looking to solar to enable fridge/freezer. This seems in the range of a decent solar panel array. Thanks.
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Old 04-19-2021, 02:22 PM   #19
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I built my own fridge and a freezer in my boat about 12 years ago. Using modules. They cost me around 1K each. The advantage of building my own, was to use efficient insulation (up to 6") and make them as efficient as possible. The added mini computer fans keeping the air circulated helped immensely. They were far more efficient than the stand up unit I had before. Have a look at the units like these https://www.westmarine.com/buy/isoth...76?recordNum=3
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Old 04-19-2021, 02:54 PM   #20
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ARB fridge/freezers are the way. Built for the outdoors. We have the 80 qt. size. They are AC/DC and use Dan Foss compressors. Never looked back.

https://arbusa.com/portable-fridge-freezers/
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