The heat gain of the room on a design day = capacity of ac unit needed. A design day is the normal maximum heat and humidity conditions expected to occur in your area of the country. If you are only seeking advice on sizing a window unit, measure the sq footage of the room and the sales people should be able to help you out with that and by asking a few other questions such as # and type of windows, what is above and below the bedroom etc.
13000
btus needed to heat & cool 625sf room
to calulate your btu needs,you can use this link: http://hearth.com/calc/btucalc.html
about 12,000
Standard practice holds that it takes 5000 BTUs to heat a room 100 to 150 sq ft Figure on adding another 1000 BTUs for every 50 or so sq ft added. Hence , 400 to 450 sq ft would need about 10,000 BTUs
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A small room is about 5,000 BTUs. Most people don't have a room that would require more than 10,000 BTUs.
12,000
13000
btus needed to heat & cool 625sf room
1800 btus
Air conditioning systems aren't measure in horsepower - they're measured either in BTUs or in tons. To determine this, a specific model of AC system would be needed.
It depends on the climate and how well your home is insulated.A good rule of thumb is about 20 BTUs per square foot.
Determine the SEER rating of the HVAC system. The SEER rating is usually provided by the manufacturer and is a measure of the system's energy efficiency. Find the total cooling capacity of the HVAC system in BTUs (British Thermal Units). This information is also typically provided by the manufacturer and can be found in the system's specifications. Plug the SEER rating and the total cooling capacity in BTUs into the formula: Tonnage = (Total Cooling Capacity in BTUs) / (SEER) For example, if you have an HVAC system with a SEER rating of 16 and a total cooling capacity of 48,000 BTUs: Tonnage = 48,000 BTUs / 16 SEER Tonnage = 3 tons
There are 12,000 Btus per ton of cooling. In order to determine tons of cooling, the formula is: Tons = (dT x GPM) / 24 If you would like to know the tons of cooling in Btus, you would multiply this formula by 12,000.. Tons (Btu) = (dT x GPM x 12,000) / 24 Basic arithmetic yields: Tons (Btu) = (dT x GPM x 500) {12,000 / 24 = 500}
To convert CFH to BTU, you need to use the formula 1 CFH which is equivalent to 1000 BTUs.
its usually about 20 btu's per square foot