Comparisons of Casement Dehumidifier Air Conditioners

Small Casement Window Air Conditioners

• In general, smaller air conditioners weigh less and cool less. Most appropriate for small rooms, casement window air conditioners that produce 5,000 to 6,000 Btus plug into standard wall outlets and run on ordinary 115-volt household current. The Fedders 5,000 Btu casement window unit dehumidifies at the rate of 2.5 pints per hour and has a 9.5 energy efficiency rating (EER), which is comparable to the dehumidifying rate and EER of many larger, more expensive units. At only 13.25 inches tall and 18.5 inches wide, the Frigidaire mini-compact air conditioner is not made specifically for casement windows, but may fit well in wider casement types. Its 6,000 Btus cool 216 square feet, but the unit dehumidifies at the rate of only 1.3 pints per hour.

Medium-Size Casement Window Air Conditioners

• The 8,000 Btu Frigidaire slider/casement window air conditioner, dehumidifies the air in a small room at the rate of 3 pounds per hour. The unit has an energy efficiency rating of 10.5 and is 20.25 inches tall and 14 3/16 inches wide. Haier’s 8,000 Btu casement/slider window air conditioner has a dehumidification rate of 2.5 pounds per hour. This unit’s EER is 9.5, and the unit is 20 15/32 inches tall and 14.5 inches wide. Both are 115-volt units that plug into standard household wall receptacles.
  Haier’s 9,000 Btu slider/casement unit can cool 350 to 450 square feet and dehumidifies at the rate of 3 pints per hour. It has an EER of 9.5, plugs into standard wall outlets and requires a window opening of at least 21 inches.

Large Casement Window Air Conditioners

• For multiple or large rooms, large casement window units ranging from 9,500 Btus to around 12,000 Btus are available. Kenmore’s 11,500 Btu casement window unit dehumidifies at the rate of 69 pints every 24 hours and runs on standard 115-volt household current. LG Electronics makes a 9,500 Btu unit that dehumidifies 3 pints per hour and has a 9.5 EER. Frigidaire's 78-pound, 12,000 Btu slider/casement unit clears 3.6 pints of humidity from the air hourly. The LG and Frigidaire units run on standard household current, but the Frigidaire unit requires a round receptacle.

Considerations

• Choose the proper size unit for your space to maximize the unit's ability to dehumidify and cool the air. In places like the South, where humidity is high in summer, choose the unit with the highest dehumidifying capacity per hour.