Btu Per Square Feet Cooling

We often refer to the british thermal unit as a btu but the rating is actually the btus per hour or btu h.

Btu per square feet cooling.

For example if you re trying to heat or cool 1 000 square feet you would multiply 1 000 by 20 and get 20 000 btus per hour. The smaller the volume the fewer btus are required to cool or heat. Air conditioners are sized by the number of btus they put out. Btus stand for british thermal units and refer to the amount of energy your air conditioner is using per hour.

Assuming the minimum cooling capacity of 400 square feet per ton for your hvac unit a 1600 square foot home will require 4 0 tons of air conditioning to cool. A british thermal unit or btu is a unit of measurement of energy. Once you have the total square footage just multiply that number by 20 to find how many btus per hour you d need to heat or cool the space. Window air conditioners typically have a cooling capacity ranging from 5 000 to 12 500 british thermal units btu hr.

How to find how many btus your furnace should be. Each three dimensional cubic square foot of space will require a certain amount of btu usage to cool heat accordingly. To figure out what size air conditioner you require you first need to determine the amount of btus you require. This is done by calculating your square footage.

However volume is a more accurate measurement than area for determining btu usage because ceiling height is factored into the equation. How to get a rooms square feet to get the square feet of a room measure the length by the width and multiply the two together. The middle part of the country zone 3 and 4 require between 40 45 btu per square foot while the northern areas of zone 5 need up to 60 btus per square foot. If there are more rooms such as closets simply do the same and add them to the total.

Your hvac unit will need to remove about 4 0 x 12 000 btus or 48 000 btus per hour to keep your home cool. To learn how to adjust btu per square foot for special conditions scroll down. In the simplest terms the colder or warmer the outside air the more energy you ll need to move the internal temperature of a building. For example a room that is 20 feet long by 20 feet wide would be 20 x 20 400 square feet.

Btu sizing chart for mini split hvac units.