Simple question, complex answer. Details such as ceiling height, insolation level, windows, people density, electrical devices, location etc. can drive you to an answer ranging from 6,000 to 24,000 BTU's per hour.
A romm 20x9 is 180 square feet. You will need 5000 to 6000 BTUs for this.
its usually about 20 btu's per square foot
12square meter and 12 sq feet depth in how many use cement
12square meter and 12 sq feet depth in how many use cement
It depends on the climate and how well your home is insulated.A good rule of thumb is about 20 BTUs per square foot.
btus needed to heat & cool 625sf room
A small room is about 5,000 BTUs. Most people don't have a room that would require more than 10,000 BTUs.
This size unit is enough to cool a room 450 square feet which gets a lot of sunlight; air conditioners are rated by BTUs not degrees of cooling, you run it until the room is the temperature you have chosen.
It depends on the volume of the room.
According to the Energy Star chart, 12,000 BTUs will cool a room of 450 up to 550 square feet. I'd stay on the low end of that.
You will need a portable air conditioner that offers 24,000 - 25,500 BTUs to cool a room of about 1500 cubic feet. This is a large sized room and a 2.5 ton unit would cool that area.
Around a million. plus or minus a few.