The most quiet and efficient central air conditioner you can buy. Carrying unprcedented efficiency ratings of up to 19.2 SEER, the HSX19 is nearly twice as efficient as standard air conditioners. The HSX19 not only cuts energy costs, but it also delivers the lowest annual operating costs possible. It's two-speed, scroll compressor operation (the first of it's kind) runs at low speed up to 80% of the time making it far less expensive to operate and capable of removing more humidity. And using chlorine-free R410A refrigerant, the HSX19 meets the EPA's most stringent environmental guidelines, saving energy and protecting the environment. The patent-pending fan design and new compressor vibration isolators, along with a passive sound-dampening fan grill and Hushtone cabinet, make the HSX19 the ultimate in quiet cooling and efficient comfort. The exclusive Lennox System Operation Monitor (the first on-board diagnostics system) reviews system performance and can communicate with select thermostats with a "call for service" indicator for additional peace of mind and faster,easier service. The HSX19 offers comfort like you've never experienced and savings like you've never imagined.

Specifications: Energy Star qualified, SilentComfort technology, up to 19.2 SEER energy efficiency, quiet operation as low as 70db, chlorine free R410A refrigerant, Lennox System Operation Monitor on-board diagnostics, efficient two-stage scroll compressor, enhanced coil guard, 10 year limited compressor warranty, 5 year limited warranty on covered components

The Dave Lennox Signature Collection HSX15 air conditioner is the quietest air conditioner you can buy. The HSX15 air conditioner delivers a superior level of comfort and quiet performance. Designed with exclusive SilentComfort Technology, the HSX15 is 16 times quieter than the typical air conditioner, making it the quietest air conditioner you can buy. Using the new environmentally friendlier R410A refrigerant, the HSX15 is one of the most efficient air conditioners on the market. You'll enjoy saving energy dollars almost as much as you'll enjoy SilentComfort. Let the Dave Lennox Signature Collection HSX15 show you how comfortable quiet can be.

Specifications: quiet operation- as low as 68db, scroll compressor, up to 14.75 SEER, up to 8.5 HSPF, R410A refrigerant Enhanced coil guard, 10-year limited compressor warranty, 5-year limited covered components warranty

The Lennox Elite Series HS27 air conditioner is super-high efficient with the simplicity of single-speed technology. Wrap yourself in the year-round comfort that comes from the reliability of the HS27 air conditioner. The high efficiency and dependability of the Elite Series HS27 provide you with outstanding energy savings, value and performance.

Specifications: quiet operation- as low as 72db, up to 15.6 SEER, scroll compressor, enhanced coil guard, 10-year limited compressor warranty, 5-year limited covered components warranty

The Lennox Elite Series HS26 air conditioner with outstanding energy efficiency delivers exceptional value and quiet comfort all summer long. The HS26 air conditioner offers dependable operation to keep you cool when the temperature rises. With exclusive HushTone cabinet design, the HS26 delivers quiet comfort. And with an impressive efficiency rating, the Elite Series HS26 gives you the kind of performance that translates into energy savings all year-round.

Specifications: quiet operation- as low as 74db, up to 14.7 SEER, scroll compressor, enhance coil guard, 10-year limited compressor warranty, 5-year limited covered components warranty

The Lennox Elite Series HSX12 air conditioner delivers maximum comfort and energy savings. And it uses the new R410A refrigerant to maintain a comfortable home environment while helping preserve the global environment. The HSX12 air conditioner proves that home comfort and environmental responsibility go hand in hand. EPA-recognized, chlorine-free R410A refrigerant allows the HPX12 to provide superior comfort without exacting a costly environmental toll. With an impressive efficiency rating, the HSX12 also delivers significant savings on your energy dollars.

Specifications: quiet operation- as low as 73db, up to 13 SEER, R410A refrigerant, scroll compressor, enhanced coil guard, 10-year limited compressor warranty, 5-year limited covered components warranty

The Lennox Elite Series HS29 air conditioner provides the comfort you need at a price you can afford. Reliable performance and efficiency with increased dehumidification are what you can expect from the Elite Series HS29 air conditioner. The HS29 proves that reliability and affordability go hand in hand.

Specifications: quiet operation- as low as 74db, up to 12.05 SEER, reciprocating compressor (1-2 ton), scroll compressor (2.5-5 ton), enhanced coil guard, 10-year limited compressor warranty, 5-year limited covered components warranty

The Lennox Merit Series 13ACC is designed to provide efficient and quiet cooling year after year. The quiet scroll compressor delivers high efficiency for lower cost operation and greater energy savings. With quality components and an efficient design, the 13ACC is built to last. This product meets the Energy Star guidelines for energy efficiency.

Specifications: up to 14.4 SEER, precision-balanced direct drive fan, 5-year limited compressor warranty, 1-year limited covered components warranty, Energy Star qualified.

The Lennox Merit Series 10ACC air conditioner provides efficient and economical cooling year after year. The 10ACC air conditioner is specially designed for affordable, high-efficiency operation that offers great energy savings. With an enhanced level of quiet operation and innovative compact design that offers reliable performance, this affordable model is built to last.

Specifications: up to 11.2 SEER, dependable compressor, 5-year limited compressor warranty, 1-year limited covered components Warranty