In article ,
"Edwin Pawlowski" wrote:

"Smitty Two" wrote in message
People living "off the grid" buy refrigerators that have about a foot of
insulation, and they run for virtually nothing by comparison, because
there's no heat loss.

Correction. There is little heat loss (or gain). Impossible to have no heat
loss as long as there is a temperature differential.

True. Of course when I said "no" I meant "a negligible amount."