The other problem is that I don't think there's any kind of power converter in a Dometic RM211... these units run on the absorption principle, which is driven by heat. The propane
, 12V DC, and 120V AC are all just used to provide heat. In a normal 3-way refrigerator
, there is no converter to change one voltage of electricity to the other; instead, there are separate 12V and 120V heating elements.
To make AC power for the Home Depot refrigerator
, you need an inverter. Those are cheap and readily available... but the refrigerator's power demand, compounded by inverter inefficiency, cause the problem Peter mentioned when running from a battery
. On the other hand, running this type of refrigerator
on AC power at a serviced campsite and via an inverter while hitched to a running tow vehicle's 12V power does
seem like a practical option.