Hi.

Instead of flame powered, an electric heating element.

How does it compare to a plain AC household electric refrigerator, say one that consumes 250 Watts x 16 hours every day. (4000 Watthour)

 

A 250 watt heating element attached to an absorption refrigerator, would have a reasonable household performance ?

I don't have the figures, but they are not very efficient.

About the only time they get used is when the fact that they are quiet is more important than the running cost.