What size air conditioner do I need?
A larger air conditioner will not always provide more cooling. It should be sized for
room area. If properly sized it should operate long enough to remove moisture from
air. It is
moisture removed from
room which actually produces
feeling of cooling. Unfortunately many people in their rush to purchase a window air conditioner buy too large a model.
Too large a unit can actually provide less cooling than a smaller, properly sized unit. This is because with an oversized air conditioner its run time is too short. Consequently it does not remove enough moisture from
room to produce a feeling of comfort. If youre A/C seems to cycle off and then back on every few minutes and does a poor job of cooling, it is probably oversized for
room.
Air conditioners are rated in BTUs. British Thermal Units are a measurement of how much heat is being transferred form
room being cooled to where
heat is dumped out of doors. This is why
cooing coil inside
room is cool to
touch, while
part that hangs outside is extremely hot.
A window air conditioner used in
average household room can be as low as 4000 BTU. While 5000, 6000, and 8000 are
most common sizes purchased.
How do I determine what size A/C I need?
Following is a basic sizing chart for calculating
window air conditioner needed for a room. Calculate
size of
room by multiplying
width of
room by
length of
room. Use your room size to determine what BTU's are required to cool that particular room size.
room in sq ftroom in sq mA/C size in BTU's 100 250 9 23 5000 6 000 250 40023 37 6000 8500 400 55037 51 8000 11000 550 87551 81 11000 15000 Based on a room occupied by two adults, having an average insulation, number of windows, and sun exposure.
Which is
best room for placement of an air conditioner?
Wherever it gives
most comfort is where it should be installed. If you only have one air conditioner then we usually suggest
bedroom. This is because most people find that if they can sleep comfortably during a hot summer night then their next days work will be a lot easier. Getting through a hot day at work becomes a lot easier when you know you will sleep comfortably that night.