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According to this energystar.gov chart, the proper air conditioning BTU capacity for a 500 square foot room is 12,000 BTUs.

However, since this is an apartment divided up into several rooms with the possibility of only one A/C unit, I was wondering if 12,000 BTUs is still the correct capacity.

Here is a diagram of the apartment. The location of the A/C unit is indicated. The unit is a window style unit mounted into a wall:

enter image description here

Thanks!

  • How will the cool air get to the rest of the apartment? – Daniel Griscom Apr 18 '16 at 15:14
  • @DanielGriscom That's been a challenge with the current 20 year old unit rated at 5,000 BTUs. The bedroom seems to take the longest to cool due to its location. – fire_water Apr 18 '16 at 15:22
  • If a 5k BTU unit does an even slightly passable job, then a 12k BTU unit will have plenty of capacity. – Daniel Griscom Apr 18 '16 at 15:44

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