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.