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Comment by dandare | Hacker News Reader

> A 3kg cat has a heat output of 14.8 watts, or 129.65 kilowatt-hours

I don't get it, how is 14.8 watts equal to 129.65 kilowatt-hours?

They forgot to specify per year.

(129650 WHr/14.8 W)/24 hr = 365 days

Probably the total yearly heat output of a house cat.

  >>> 14.8*24*365 / 1000
  129.64800000000002