Some very good discussion and knowledge for all of us DIYs -- thank you!. I love the concept of the absorption chiller due to the LP energy (A 20lb LP tank has about 105 times the energy of a 100Ah battery).
However, because DW closely monitors Fridge
temps for food safety, we know the fridge
part of our 3.0 Domestic fridge/freezer is limited to a 30dF delta temperature from outdoor temps. And yes, we have adjusted the sensor location inside the fridge.
We work around this by:
1. Closely monitoring fridge temps to ensure they're not 40dF or higher.
2. Moving ice packs from freezer (that continues working) to the fridge
3. Avoid opening the fridge
4. Doing most RVing in cooler environments (high altitude or North in summer).
When this Dometic fails, I'll change to a compressor-based 12vdc/120vac fridge like some of my Snoozy friends have to reduce our constant fridge monitoring and compensation. I look forward to this upgrade. Because I already have outside vents, I'll probably vent the waste heat outside if possible.
Note: I, my Snoozy friends (with 12vdc fridges), and others have 125Ah Lithium Power systems that I installed (I'm a P.E.), powered only from 100W solar
. I personnaly wouldn't recommend compressor-based fridge without first upgrading to Lithium power and MPPT solar
to create, capture, and completely monitor power. Mel (the boondocking