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DreamLG Home > Air Conditioner > Useful Information > What is an Air Conditioner
Terminology and Units of Air Conditioner
Capacity Indication

Btu/h (British Thermal Unit) Heat required to heat up 1lb(0.453kg) of water by 1℉
kcal/h Heat required to heat up 1kg of water by 1˚C
W Unit of work, can be converted into calories (1W=860cal/h)



EER (Energy Efficiency Ratio)

Btu/hW Indicates how many Btu's generated with 1W per hour.
kcal/hW Indicates how many Kcal's generated with 1W per hour.
W/W Indicates how many W's generated with 1W per hour.


Unit Conversion
1,000Btu/h≒ 250 kcal/h ≒ 0.29kW
1HP ≒ 9,000Btu/h
1RT ≒12,000Btu/h ≒ 3,024 kcal/h ≒9 pyong (35.586 sq. yds)
   
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