How many BTU do I need to cool a 20×20 room?

Rule of thumb, of course. So the space you want to cool ( 20×20=400) should be doable wih a 1 ton (12,000 BTUH) unit. But I’d bump it up to a 15,000 – 16,000 BTUH to handle the hot, humid summer heat of your area.

Room Size Square Footage Recommended BTU Range
20’X20′ 400 9000
18’X25′ 450 10000
22’X25′ 550 12000
25’X30′ 750 14500

One may also ask, how many BTU do I need for a 12×12 room? 2. Find the correct cooling capacity for your room size

Area To Be Cooled (square feet) Capacity Needed (BTUs per hour)
100 up to 150 5,000
150 up to 250 6,000
250 up to 300 7,000
300 up to 350 8,000

In this regard, how many BTUs do I need to cool a room?

The Rules for Keeping Cool As a rule of thumb, an air conditioner needs 20 Btu for each square foot of living space. But other considerations, such as the ceiling height and the size of your windows and doorways, might call for more cooling power. To measure your room, multiply the length of the room by the width.

What size room will 15000 Btu cool?

BTU Sizing Chart for Mini Split Systems

Area To Be Cooled Capacity Needed (BTUs Per Hour)
700 to 1,000 square feet 18,000 BTUs
1,000 to 1,200 square feet 21,000 BTUs
1,200 to 1,400 square feet 23,000 BTUs
Up to 1,500 square feet 24,000 BTUs

How many square feet will a 12000 BTU air conditioner cool?

550 square feet

Is 8000 BTU enough for a bedroom?

For very shady rooms, decrease it by 10 percent. If there are often more than two people in the room, add 600 BTUs per person, or make them bring ice. What Size Air Conditioner Do You Really Need? Area To Be Cooled (sq. feet) → Capacity Needed (BTUs per hour) 250 up to 300 7,000 300 up to 350 8,000 350 up to 400 9,000 400 up to 450 10,000

How many BTU do I need per person?

When calculating the cooling load for a particular space, managers can use a rough estimate of 600 Btu per person. So a quick estimate for a 400-square-foot office with minimal occupancy is about 12,000 Btu, or 1 ton of cooling.

How many feet is 300 square feet?

That means a square that had each side of that length, in feet, would have a square foot area of 300 square feet. The size is a bit abstract. Fiddle with combinations a little larger and smaller than 17 x 17 a bit and you find that a rectangle of 20 x 15 would equal 300. So, imagine a square area 20 feet by 15 feet.

Is the higher the BTU better or worse?

A heater with a higher BTU rating is more powerful — that is, it has a higher heat output — than one with a low BTU rating. It can do more to raise the temperature in your room each hour, so you can either heat a room more quickly or heat a larger space.

How many square feet will a 10000 BTU air conditioner cool?

Size and Ceiling Height Area To Be Cooled (square feet) Capacity Needed (BTUs per hour) 400 to 450 10,000 450 to 550 12,000 550 to 700 14,000 700 to 1,000 18,000

How many BTU do I need per square foot?

To determine the number of BTUs per square foot that you need to heat a room, simply multiply the square footage by 20 BTUs per square foot. For example, if a room has 1,000 square feet, you would require 20,000 BTUs to heat it.

What size room will 20000 BTU?


How many square feet will a 18000 BTU air conditioner cool?

1. Cooling Capacity Area To Be Cooled (Sq. Ft.) Capacity Needed (BTUs Per Hour) 400 to 450 sq. ft. 10,000 BTUs 450 to 550 sq. ft. 12,000 BTUs 550 to 700 sq. ft. 14,000 BTUs 700 to 1,000 sq. ft. 18,000 BTUs

How much electricity does a 12000 BTU air conditioner use?

Power Consumption Of 12,000 BTU Air Conditioners (1 Ton/3.5 kW) 12,000 BTU air conditioner units consume 991 (EER: 12.1) to 1,333 watts (EER: 9, which is a bit low for these units, by today’s standards). An EER of 11.3 is average for new 12,000 BTU window units, translating to a wattage of 1,061 Watts.

How many BTU do I need for 800 square feet?

Window Air Conditioning Chart 100 Sq. Ft. 5,000 BTU 300 Sq. Ft. 9,000 BTU 400 Sq. Ft. 10,500 BTU 500 Sq. Ft. 11,500 BTU 800 Sq. Ft. 17,000 BTU

What happens if my AC unit is undersized?

An AC that is too big will cool down the air very quickly, but it will not run long enough to remove sufficient moisture or “humidity” from the air. This will make the temperature fall sufficiently to make you feel cool, but you’ll also get a clammy feeling. This is another reason to right size your air conditioner.

What size room will a 6000 BTU air conditioner cool?

You’ll need to know your room size too. In general, a 5,000 to 6,000 BTU air conditioner can cool between 100 and 300 square feet. Seven thousand to 8,200 BTU units are adequate for cooling 250 to 550 square feet, while 9,800 to 12,500 BTU models cool up to 950 square feet.

How many rooms can a mini split cool?

4 rooms