What is BTU and how much BTU do I need?
Properly Sized Condenser and indoor unit
Sizing is all about matching the house size to the HVAC system's size. A unit that is too big will be less effective and offer reduced air conditioner efficiency. Air conditioners remove both heat and humidity from the air. If the unit is too large, it will cool the room, before it has a chance to remove the humidity. The result will be a room that's not very comfortable to spend time in that cool moist air will make the room feel damp and clammy.
On the other hand, unit too small will be less effective as well. Air conditioner will be running all day to try to keep the room temperature cool while wasting energy.
What is BTU?
BTU stands for "British Thermal Unit." It is a measurement of heat, and each individual unit represents the amount of heat required to raise 1 lb. of water 1 degree F. Each BTU is equivalent to roughly 252 calories of energy. Calculating BTU requirements is essential for minimizing your energy costs while providing you the optimal heating/cooling you need for your space.
The table below gives recommended air conditioning BTU's necessary to cool a single room. The data in the table assumes that the ceiling over the room is insulated and that the room is not over or is not itself a special heat-producing area such as a kitchen or boiler room.
Ductless splits cool a larger area at the same BTU level than do window air conditioners and portable air conditioners. Below is an approximate sizing guide:
- 350 square feet = 9,000 BTU
- 500 square feet = 12,000 BTU
- 750 square feet = 18,000 BTU
- 1000 square feet = 24,000 BTU
- 1250 square feet = 30,000 BTU
- 1500 square feet = 36,000 BTU
Call now for advice on how to choose a ductless mini split A/C system 516-328-3838
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