3 ms·

“ A 3kg cat has a heat output of 14.8 watts, or 129.65 kilowatt-hours...” Playing fast and loose here. That’s 129.65 kilowatt hours per year. 14.8 watts is 0.0

• viraptor 6y ago
  Also that's kWh summed up over the year. Cats have constant output, but for house heating you'd want to concentrate it to just ~3-4 months. So we're closer to 50-60 cats at that point.
• hengheng 6y ago
  That line kept me from reading the article. I'm not even interested in what follows after that, and yes they only omitted "per year".
• nurettin 6y ago
  http://www.c60design.co.uk/many-cats-take-heat-passive-house/ http://www.c60design.co.uk/many-cats-take-heat-passive-house... They just took this content here, inflated it a little bit with filler sentences and published it as an article. "In summary then, cats are expensive… and wasteful."
• Freak_NL 6y ago
  You would be surprised how often this error is made. Even in quality newspapers journalists tend to use kWh as a unit of power instead of energy. That probably happens because of the 'hour' part in kWh. People have no problem understanding that km is distance, and km/h is speed. With energy and power the units read less intuitively: energy is J (Joule) and power is really just J/s (Joules per second), but we call that W (Watt) and for purposes of energy consumption the unit is kWh, which is really just a fancy compact way of saying 3.6 MJ (Megajoules). So we have journalists writing about new dams that produce x TWh and cats that produce 129.65 kWh. (Per what? Day? Month? Year? Lifespan of the dam?)