Forum Discussion
crosscheck
Feb 13, 2014Explorer II
Jfet wrote:Hodag1 wrote:
Novacool is electric only. The coils are on the back and heat is exhausted to the outside from the back.
Thanks. So you still need cutouts in the side wall.
From my reading, a compressor fridge is going to draw about 4 amps and run at 30% duty cycle in 85 degree temps. Figuring a lower duty cycle at night, that is about 1 amp-hr in a 24 hour period, so 24ah.
24ah x 12V = 288 watt-hr.
So you need a battery and a 150 watt solar panel pretty much dedicated to the operation of the fridge, and you can never park under trees for extended period.
Figuring a 4 year life span on a heavy used AGM at a cost of $200 for the battery, that would be $50 a year. Solar panel should last 10 to 15 years and is around $250, so call it $20 a year.
$70 a year to run the fridge on 12V DC
Propane for the fridge is probably going to be a bit more. At $3 a gallon, $70 would only get you 23 gallons, or about 2 gallons a month. I think you would need double that for the fridge.
On my unit, I have a outside vent near the bottom of the fridge compressor.
Another guy with the same unit, think it was Stevein29, has only inside venting in the cabinet above the fridge.
When I am in cold country for awhile, I remove the outside vent, put insulated foil across and replace vent. I have holes in top fridge cabinet like Stevein29.
Your AmpHr numbers maybe a little low if you are in 95F+ weather but I have no way of verifying this.
Dave
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