Air Conditioner question

Nocturnal

Lifer
Jan 8, 2002
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How much BTUs would it take to cool a small room... I don't know the exact dimensions but it is not big at all.
 
Aug 17, 2004
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IIRC, it depends on the type of room (office, closet, warehouse, etc...), the load (avg. # of people, electronics), number of windows and type of glass...stuff like that.
Here's a basic rule of thumb:
To determine the BTUs needed to cool a room is to multiply the square feet of the room by 25; add 1,000 for every window and 400 for each occupant.
 

Eli

Super Moderator | Elite Member
Oct 9, 1999
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Originally posted by: deathkoba
I have a 144sq ft room (exactly 12x12) and use a cheap 7000btu panasonic ac. Gets cool REAL quick!
I bet! :Q

That's way overkill for a room that size, unless it's got 3 large, leaky windows.. lol
 

RossMAN

Grand Nagus
Feb 24, 2000
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Ryan,

Measure the freakin' room even if you have to guess. How many foot steps from one side to the other for both length and width?

Multiply those two numbers (e.g. 12 x 10 = 120).

Then use a BTU calculator.
 

thirdlegstump

Banned
Feb 12, 2001
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While mine is a bit overkill for my roomsize, using a higher BTU AC is more efficient (energy saving wise) than one rated for the size.