BB. wrote: »
While I like the idea of running without a battery--There is real issues with cycling refrigerator and freezer temperatures (warmer food does not last as long, temperature cycling increases chances of freezer burn . . .
bill von novak wrote: »
There are a few dedicated solar refrigerators out now intended for vaccine usage; they use eutetic salts that freeze and maintain temperature for several days with no power. They are hideously expensive, but using a similar system (salts in a bag in your refrigerator?) you could greatly decrease temperature variations.
BB. wrote: »
In theory, you probably need ~1,500 watt AC inverter to start a second freezer when the first one is already running.
There is always the possibility that both would start at the same time, and you are looking at a ~2,400 watt inverter to do that--Or setup a relay (a bit of a detailed discussion on how to do that) to prevent both starting/running at the same time (one poster here did that on his small system).
Are you looking to run two freezers or one freezer + one as a refrigerator? Efficiency wise, it is almost always more efficient/less costly to run one larger freezer vs two smaller freezers. Volume goes up with the cube of the size of the freezer, square footage of the surface area goes up with the square of the size... So there is less heat loss through walls per cuft of volume as the units get physically bigger.