jwh92020 wrote:Thank you all for the info. I'm going to try and find a good deal on a 12v unit and go with that. I've used a couple of calculators and using a less efficient frig, I'll need right at 300 watts of panels & 200 amp hrs of batteries. I'll be frig shopping this week. Wish me luck.
jwh92020 wrote:Thank you all for the info. I'm going to try and find a good deal on a 12v unit and go with that. I've used a couple of calculators and using a less efficient frig, I'll need right at 300 watts of panels & 200 amp hrs of batteries. I'll be frig shopping this week. Wish me luck.
flboy wrote:jwh92020 wrote:Thank you all for the info. I'm going to try and find a good deal on a 12v unit and go with that. I've used a couple of calculators and using a less efficient frig, I'll need right at 300 watts of panels & 200 amp hrs of batteries. I'll be frig shopping this week. Wish me luck.
Good luck on your fridge and certainly you should get what you are comfortable with. No doubt those are good and efficient refrigerators and will give you many years of service. You absolutely cannot go wrong with one.
That being said, not sure what you were using for calculations, but that has to be off for just a fridge. I ran a whole CTC with an Inverter and 3.2 CU 115VAC fridge, Television, Lights, Fans, etc.. with 200W of panels and 225aH of batteries and never had any issues for many years. Need to check the math. Will be higher than a 12VDC fridge head to head due to inverter related losses , but no way that much power for just a fridge all else being equal.
Also, I'd never plan on solar to be the end all in any case unless maybe I lived in the desert... it works less than half the time due to night and clouds, trees , shade, etc.. Have a good battery bank (size it with some margin to spare), some solar, and the means to supplement solar with the Tow Vehicle, Generator, or etc.. I put a lot of time and money into mine and it does work and works well when I have full sun. What I am finding out is that, often enough I do not get full sun in the Southeast. Most camping places are shady for good reason, there is no sun at night, and a lot of days we have partly cloudy skies. My routine if I do not have full sun for most of the day is to run the gen for a few hours after sundown if the batteries need a boost for the overnight consumption. I take the opportunity to heat my water in electric mode and do a few other more power hungry things to utilize the gen while I am at it. So far I find I have to do that about 50% of the time and I have 500W solar and now have 430ah of Batteries.
John61CT wrote:The efficiency losses of front-opening vs chest style is grossly overestimated by most.
The air you lose has little thermal mass.
<snip>
bdosborn wrote:John61CT wrote:The efficiency losses of front-opening vs chest style is grossly overestimated by most.
The air you lose has little thermal mass.
<snip>
YES! Finally, someone gets it!
Bruce
"Cold" is not a thing, just an attribute, an absence of energy.McDave wrote:Why doesn't the cold just come out the top? That's not what cold does, cold falls, heat rises.
…
a bucket that holds the cold and keeps it from falling out and spilling all over the floor.
John61CT wrote:And with grid / shore power, energy efficiency is of lower concern, by factors of magnitude.
bdosborn wrote:Saw a review on Youtube about this fridge, the price sure is lower than most. The Amazon reviews don't look too bad either:
costway fridge
Bruce
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