4 ms·

I did the math once, it takes about 3 watts of energy to remove one watt of energy (heat) from an average house in Texas when it's over 95F (35C) outside using

I did the math once, it takes about 3 watts of energy to remove one watt of energy (heat) from an average house in Texas when it's over 95F (35C) outside using a typical air conditioner.

jdmichal 7y ago
That would be a COP of 1/3, or a EER of about 1. I'm going to assert that you probably messed up your math somewhere, seeing as an EER of around 11 at 95°F is pretty common. (And also represents roughly the minimum required efficiency of an A/C sold in Texas since 2006.)
- hwillis 7y ago
  Second- 1/3 is about what you'd expect for a Peltier module at a similar temperature difference.
PhantomGremlin 7y ago
It's the other way around. One unit of energy to remove three units of heat. The best starting point is the government mandated minimum SEER of 13. The Wiki article on SEER works this out. The money quote is: A SEER of 13 is approximately equivalent to an EER of 11, and a COP of 3.2, which means that 3.2 units of heat are removed from indoors per unit of energy used to run the air conditioner. That's the minimum. Anything higher than SEER 13 is proportionally more efficient. https://en.wikipedia.org/wiki/Seasonal_energy_efficiency_ratio https://en.wikipedia.org/wiki/Seasonal_energy_efficiency_rat...