I plugged my parents 1960 fridge into a kilowatt and it used so little power I had to leave it plugged in for several days to make sure I got a reasonable readi

I plugged my parents 1960 fridge into a kilowatt and it used so little power I had to leave it plugged in for several days to make sure I got a reasonable reading. Something like 2 kwhr per day. So it would take about five years for a replacement to pay for itself if the replacement ran on nothing but happy thoughts.