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Duct Free Systems

Duct free heating and cooling systems make your home's individual rooms or other small spaces more comfortable. Remember, just like whole-home systems, the higher the SEER/SEER2 and HSPF/HSPF2 ratings, the more efficient they will be.

The DOE’s regional breakdown by state is as follows:

  • North
    • 14.0 SEER/ 13.4 SEER2
    • 8.8 HSPF/7.5 HSPF2
  • Southeast
    • 15.0 SEER/ 14.3 SEER2
    • 12.2 EER/11.7 EER2
    • 8.8 HSPF/7.5 HSPF2
  • Southwest
    • 15.0 SEER/ 14.3 SEER2
    • 12.2 EER/11.7 EER2
    • 8.8 HSPF/7.5 HSPF2
DOE Regional SEER Breakdown Map

SEER/SEER2 And HSPF/HSPF2

SEER2 is an updated rating standard introduced by the DOE. SEER2 standards are intended to provide a better gauge of typical home operating conditions whereas the older SEER rating utilized very precise protocols to determine ratings in ideal conditions. SEER2 standards include updated testing means that give a better indication of how a unit will operate in the real world.

HSPF2 is the newest type of rating system that expands on the basic HSPF scale.

Much like miles-per-gallon for a car, SEER/SEER2, EER/EER2 and HSPF/HSPF2 offer an easy way to compare efficiencies of different products – the higher the rating, the more efficient the unit. Just be sure you are comparing either SEER vs SEER or SEER2 vs SEER2 (same for EER/EER2 and HSPF/HSPF2).

EER2 vs. SEER2

EER2 and SEER2 both evaluate an air conditioner’s energy efficiency, but they’re concerned with two different types of temperature conditions:

  • EER2 measures an air conditioner’s efficiency at the peak cooling temperature of 95°F.
  • SEER2 measures an air conditioner’s efficiency throughout an entire cooling season, with temperatures ranging from 65°F to 104°F.

Call SERVICE 1 PLUMBING, HEATING & A/C, INC. To Find Out If Duct-Free Systems Are Right For You.

We offer a variety of through-the-wall packaged terminal air conditioners (PTAC) and duct free heating and cooling systems to meet any individual room's needs. Call us now at (815) 254-1449.

LG Indoor Ductless Heat Pump Units

LA***HYV3

Art Cool Premier HYV3 Series

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Model Family: LA***HYV3
Purpose: Heat and Cool
Zone Capability: Single zone
Efficiency SEER2: 25 SEER2
Efficiency EER2: 15 EER2
Efficiency HSPF2: 11 HSPF2
Matching Outdoor Unit: Single-Zone: LAU***HYV3
Matching Outdoor Unit: Multi-Zone:
Energy Star Rated: ENERGY STAR®
Refrigerant Type: R-410A
Number of Fan Speeds: Up to 6 Fan Speeds
Sound Level: Quiet operation
Wireless Remote: Yes
Factory Warranty Parts: 5 Year Parts Warranty
Manufacturer's Stated Benefits:
  • 24-Hour on/off timer
  • 4-Way auto swing
  • Auto changeover
  • Auto restart
  • Built-in low ambient operation to 14
  • Chaos wind
  • Condensate sensor connection
  • Defrost control
  • Dehumidifying mode
  • Hot start
  • Jet cool/Jet heat
  • Self cleaning indoor coil
  • Self diagnosis
  • Sleep mode
  • Soft dry operation
  • Soft dry operation
  • Cooling only switch
  • 3M Micro Protection Filter
  • Smart AC module
LMN***9HVT and LSN***HSV5

High Efficiency Wall Mounted

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Model Family: LMN***9HVT and LSN***HSV5
Purpose: Heat and Cool
Zone Capability: Single Zone and Multizone
Efficiency SEER2:
Efficiency EER2:
Efficiency HSPF2:
Matching Outdoor Unit: Single-Zone: LSU***HSV5
Matching Outdoor Unit: Multi-Zone: Dependent on the number of inside units
Energy Star Rated: N/A
Refrigerant Type: R-410A
Number of Fan Speeds: 6 fan speeds
Sound Level: Quiet operation
Wireless Remote: Yes
Factory Warranty Parts: 5-year parts limited warranty
Manufacturer's Stated Benefits:
  • Systems are available in 9,000, 12,000, 18,000, and 24,000 Btu/h capacities.
  • Ultra Quiet Operation - Indoor unit sound pressure 19 dB (Sleep Mode)
LAN***HSV5

Art Cool High Wall Mirror HSV5 Series

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Model Family: LAN***HSV5
Purpose: Heat and Cool
Zone Capability: Single Zone and Multizone
Efficiency SEER2: Up to 23.2 SEER2
Efficiency EER2: Up to 14.5 EER2
Efficiency HSPF2: Up to 10.2 HSPF2
Matching Outdoor Unit: Single-Zone: LSU***HSV5
Matching Outdoor Unit: Multi-Zone: Dependent on the number of inside units
Energy Star Rated: Energy Star Rated
Refrigerant Type: R-410A
Number of Fan Speeds: Up to 6 Fan Speeds
Sound Level: Quiet operation
Wireless Remote: Yes
Factory Warranty Parts: 5 Year Parts Warranty
Manufacturer's Stated Benefits:
  • 4-Way auto swing
  • 24-Hour on/off timer
  • Auto restart
  • Auto changeover
  • Chaos wind
  • Condensate Sensor Connection
  • Inverter (variable speed compressor)
  • IDU compatible with Multi F ODU
  • Jet cool/Jet heat
  • 3M Micro Protection Filter
  • Self-cleaning indoor coil
  • Sleep mode
  • Cooling only function
LSN***HEV2-LS***HXV2

High Wall Mega Standard Inverter HEV2 Series

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Model Family: LSN***HEV2-LS***HXV2
Purpose: Heat and Cool
Zone Capability: Single Zone and Multizone
Efficiency SEER2:
Efficiency EER2:
Efficiency HSPF2:
Matching Outdoor Unit: Single-Zone: LSU***HEV2-LSU***HXV2
Matching Outdoor Unit: Multi-Zone:
Energy Star Rated: Energy Star Rated
Refrigerant Type: R-410A
Number of Fan Speeds: Up to 4 Fan Speeds
Sound Level: Quiet operation
Wireless Remote: Yes
Factory Warranty Parts: 5 Year Parts Warranty
Manufacturer's Stated Benefits:
  • 24-Hour on/off timer
  • 2-Way (up/down) auto swing
  • Auto changeover
  • Auto restart
  • Condensate sensor connection
  • lnverter (variable speed compressor)
  • Jet cool/Jet heat
  • Self-cleaning indoor coil
  • Sleep mode

LG Outdoor Duct Free Units

LAU***HYV3

Art Cool™ Premier Single Zone Outdoor Inverter

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Model Family: LAU***HYV3
Purpose: Heat & Cool
Zone Capability: Single Zone
Efficiency SEER2: Up to 27.5 SEER
Efficiency EER2: Up to 15.7 EER
Efficiency HSPF2: Up to 13.5 HSPF
Energy Star Rated: ENERGY STAR®
Refrigerant Type: R-410A
Sound Level: Quiet operation
Compressor: Single stage compressor
Factory Warranty Parts: 5 Year Parts Warranty
Factory Warranty Compressor: 7 Year Compressor Warranty
Manufacturer's Stated Benefits:
  • 24-Hour on/off timer
  • Auto changeover
  • Auto restart
  • Condensate sensor connection
  • Defrost control
  • Dehumidifying mode
  • Hot start
  • Self cleaning indoor coil
  • Soft dry operation
LSU***HSV5

Art Cool Mirror Single Zone Outdoor

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Model Family: LSU***HSV5
Purpose: Heat and Cool
Zone Capability: Single Zone
Efficiency SEER2: 23.5 SEER
Efficiency EER2: 13.52 EER
Efficiency HSPF2: 11.3 HSPF
Energy Star Rated: ENERGY STAR®
Refrigerant Type: R-410A
Sound Level: Quiet operation
Compressor: Variable speed compressor
Factory Warranty Parts: 5 Year Parts Warranty
Factory Warranty Compressor: 7 Year Compressor Warranty
Manufacturer's Stated Benefits:
  • Auto restart
  • Auto changeover
  • Condensate Sensor Connection
  • Self-cleaning indoor coil
LMU***HHV

Multi F and Multi F Max Heat Pump

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Model Family: LMU***HHV
Purpose: Heat and Cool
Zone Capability: Multi Zone
Efficiency SEER2: Up to 22.5 SEER
Efficiency EER2: Up to 13.5 EER
Efficiency HSPF2: Up to 11 HSPF
Energy Star Rated: No
Refrigerant Type: R-410A
Sound Level: Quiet operation
Compressor: Variable-speed compressor
Factory Warranty Parts: 5 Year Parts Warranty
Factory Warranty Compressor: 7 Year Compressor Warranty
Manufacturer's Stated Benefits:
  • Defrost / De-icing capabilities
  • Restart delay of three minutes
  • Self diagnosis capabilities
  • Soft start reduces power surges to electrical systems
ARU****GSS4

Multi-zone Multi V S Outdoor Unit

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Model Family: ARU****GSS4
Purpose: Heat and Cool
Zone Capability: Multizone
Efficiency SEER2: N/A
Efficiency EER2: N/A
Efficiency HSPF2: N/A
Energy Star Rated: No
Refrigerant Type: R-410A
Sound Level: Quiet operation
Compressor: Variable speed Compressor
Factory Warranty Parts: 5 Year Parts Warranty
Factory Warranty Compressor: 7 Year Compressor Warranty
Manufacturer's Stated Benefits:
  • Automatically adjusts operation requirements by sensing both indoor and outdoor conditions
  • Connect up to 12 indoor units to one outdoor unit to heat and cool more zones while using less outdoor space
  • Individual Zone Control Allows the user to control the space to the precise temperature desired
  • Powerful Heating Continuous heating down to -13° F on select models

LG Alternate Indoor Ductless Units

LCN***HV4

4-Way Cassette Single Zone HV4 Series

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Model Family: LCN***HV4
Purpose: Heat and Cool
Zone Capability: Single Zone and Multizone
Efficiency SEER2: 21 SEER2
Efficiency EER2: 12.5 EER2
Efficiency HSPF2: 10 HSPF2
Matching Outdoor Unit: Single-Zone: LUU***HV
Matching Outdoor Unit: Multi-Zone: Dependent on the number of inside units
Energy Star Rated: No
Refrigerant Type: R-410A
Number of Fan Speeds: Up to 5 Fan Speeds
Sound Level: Quiet operation
Wireless Remote: Yes
Factory Warranty Parts: 5 Year Parts Warranty
Manufacturer's Stated Benefits:
  • Inverter variable-speed compressor on the outdoor unit for energy-saving operation
  • Many modes included, controlled through wireless remote or wired wall controller: Cooling, Heating, Dehumidifying, Fan
  • Independent louver control
  • Internal condensate pump included
  • Swirl Wind controls the louvers and fan speeds to create a stronger, wider air flow
  • Jet Cool operates at high fan speeds for 30 minutes to quickly cool down a room
  • Operates down to 5?F in cooling mode
  • Allows refrigerant piping lengths up to 164 or 246 feet (depending on the model), and elevation difference of 98 feet
LD***HV4

Low Static Ducted Indoor Unit

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Model Family: LD***HV4
Purpose: Heat and Cool
Zone Capability: Single Zone and Multizone
Efficiency SEER2:
Efficiency EER2:
Efficiency HSPF2:
Matching Outdoor Unit: Single-Zone: LUU**7HV
Matching Outdoor Unit: Multi-Zone: Dependent on number of inside units
Energy Star Rated: No
Refrigerant Type: R-410A
Number of Fan Speeds: 3 Fan Speeds
Sound Level: Quiet operation
Wireless Remote: Yes
Factory Warranty Parts: 5- Year Limited Parts Warranty
Manufacturer's Stated Benefits:
  • ESP control
  • Hot Start
  • Auto restart
  • Two-thermistor control
  • Sleep mode
LH2**HHV4-LH3**HV4

High Static Ducted Indoor Unit

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Model Family: LH2**HHV4-LH3**HV4
Purpose: Heat and Cool
Zone Capability: Single Zone and Multizone
Efficiency SEER2:
Efficiency EER2:
Efficiency HSPF2:
Matching Outdoor Unit: Single-Zone: LUU***HHV
Matching Outdoor Unit: Multi-Zone:
Energy Star Rated: No
Refrigerant Type: R-410A
Number of Fan Speeds: 3 Fan Speeds
Sound Level: Quiet operation
Wireless Remote: Yes
Factory Warranty Parts: 5-year parts limited warranty
Manufacturer's Stated Benefits:
  • Auto operation and auto restart operation
  • Two-thermistor control
  • Inverter variable-speed fan
  • Built-in condensate pump