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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 Ken Maddox Heating and Air Conditioning 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 317-787-1354.

Ductless High Wall Indoor Heat Pumps

45MPHA

Infinity® High Wall Indoor Unit

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Model Family: 45MPHA
Purpose: Heat & Cool
Zone Capability: Single Zone
Efficiency SEER2: Dependent upon outdoor unit pairing
Efficiency EER2: Dependent upon outdoor unit pairing
Efficiency HSPF2: Dependent upon outdoor unit pairing
Matching Outdoor Unit: Single-Zone: 37MPRA, 37MAHA, 37MBHA
Matching Outdoor Unit: Multi-Zone:
Energy Star Rated: All sizes ENERGY STAR® certified
Refrigerant Type: Puron Advance
Number of Fan Speeds: Fully modulating fan speeds
Sound Level: As low as16 decibels
Wireless Remote: Yes
Factory Warranty Parts: 10-year parts limited warranty to the original purchasing owner upon timely registration or Consumer Choice Warranty
Manufacturer's Stated Benefits:
  • Relative Humidity Sensor
  • High Heat Capability
  • Built-In Basepan Heater
  • Built-In Wi-Fi® for Smartphone Control
  • Built-In Occupancy Sensor
45MAHA

Performance™ High Wall Indoor Unit

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Model Family: 45MAHA
Purpose: Heat & Cool
Zone Capability: Single & Multi-Zone
Efficiency SEER2: Dependent upon outdoor unit pairing
Efficiency EER2: Dependent upon outdoor unit pairing
Efficiency HSPF2: Dependent upon outdoor unit pairing
Matching Outdoor Unit: Single-Zone: 37MAHAQ
Matching Outdoor Unit: Multi-Zone:
Energy Star Rated: Select sizes ENERGY STAR® certified
Refrigerant Type: Puron Advance
Number of Fan Speeds: 3 indoor fan speeds
Sound Level: As low as 16 decibels
Wireless Remote: Yes
Factory Warranty Parts: 10-year parts limited warranty to the original purchasing owner upon timely registration or Consumer Choice Warranty
Manufacturer's Stated Benefits:
  • Follow Me (senses temperature at handheld remote)
  • Modern, flat panel indoor unit in white
40MHHAQ

Comfort™ Indoor Ductless High Wall Heat Pump Unit

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Model Family: 40MHHAQ
Purpose: Heat & Cool
Zone Capability: Single & Multi-Zone
Efficiency SEER2: Dependent upon outdoor unit pairing
Efficiency EER2: Dependent upon outdoor unit pairing
Efficiency HSPF2: Dependent upon outdoor unit pairing
Matching Outdoor Unit: Single-Zone: 38MHRCQ
Matching Outdoor Unit: Multi-Zone:
Energy Star Rated: No
Refrigerant Type: Puron®
Number of Fan Speeds: Four fan speeds
Sound Level: As low as 27 decibels
Wireless Remote: Yes
Factory Warranty Parts: 10-year parts limited warranty to the original purchasing owner upon timely registration or Consumer Choice Warranty
Manufacturer's Stated Benefits:
  • Auto-restart function
  • Turbo Mode
  • Sleep Mode
  • Follow Me (senses temperature at handheld remote)
  • Heating Setback (46° F Heating Mode)
  • Up-down louver control (fixed or swing)
  • Filter is removable from the top
  • Improved serviceability with easy access to fan and electrical connections
  • Aluminum Blue Hydrophilic pre-coated fins
  • Attractively styled, high−impact polystyrene.

Carrier Residential Alternate Indoor Ductless Units

40MBCQ

Performance™ Cassette Indoor Unit

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Model Family: 40MBCQ
Purpose: Heat & Cool
Zone Capability: Single & Multi-Zone
Efficiency SEER2: Dependent upon outdoor unit pairing
Efficiency EER2: Dependent upon outdoor unit pairing
Efficiency HSPF2: Dependent upon outdoor unit pairing
Matching Outdoor Unit: Single-Zone: 38MARB
Matching Outdoor Unit: Multi-Zone: 38MGRB
Energy Star Rated: Select sizes are ENERGY STAR® certified based on outdoor unit pairing
Refrigerant Type: Puron®
Number of Fan Speeds: Three fan speeds
Sound Level: As low as 34 decibels
Wireless Remote: Yes
Factory Warranty Parts: 10-year parts limited warranty to the original purchasing owner upon timely registration or Consumer Choice Warranty
Manufacturer's Stated Benefits:
  • Modes: Cool, Heat, Dry, Fan, Auto
  • Vertical or horizontal installation
  • Auto-restart function
  • Louver control (fixed or swing)
  • Follow Me (senses temperature at handheld remote)
  • Heating Setback (46° F Heating Mode)
  • Built-in condensate lift pump
  • Aluminum Blue Hydrophilic pre-coated fins
45MBDA

Performance™ Ducted Indoor Unit

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Model Family: 45MBDA
Purpose: Heat & Cool
Zone Capability: Single & Multi-Zone
Efficiency SEER2: Dependent upon outdoor unit pairing
Efficiency EER2: Dependent upon outdoor unit pairing
Efficiency HSPF2: Dependent upon outdoor unit pairing
Matching Outdoor Unit: Single-Zone: 37MARA
Matching Outdoor Unit: Multi-Zone: 37MGRA
Energy Star Rated: Select sizes are ENERGY STAR® certified based on outdoor unit pairing
Refrigerant Type: Puron Advance
Number of Fan Speeds: 3 Fan Speeds
Sound Level: As low as 22 decibels
Wireless Remote: Yes
Factory Warranty Parts: 10-year parts limited warranty to the original purchasing owner upon timely registration or Consumer Choice Warranty
Manufacturer's Stated Benefits:
  • Modes: Cool, Heat, Dry, Fan, Auto
  • Vertical or horizontal installation
  • Rear or bottom return
  • Outside air intake
  • Built-in condensate lift pump
  • Follow Me (senses temperature at handheld remote)
40MBFQ

Performance™ Floor Console Indoor Unit

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Model Family: 40MBFQ
Purpose: Heat & Cool
Zone Capability: Single & Multi-Zone
Efficiency SEER2: Dependent upon outdoor unit pairing
Efficiency EER2: Dependent upon outdoor unit pairing
Efficiency HSPF2: Dependent upon outdoor unit pairing
Matching Outdoor Unit: Single-Zone: 38MARB
Matching Outdoor Unit: Multi-Zone: 38MGRB
Energy Star Rated: Select sizes are ENERGY STAR® certified based on outdoor unit pairing
Refrigerant Type: Puron®
Number of Fan Speeds: Three fan speeds
Sound Level: As low as 34 decibels
Wireless Remote: Yes
Factory Warranty Parts: 10-year parts limited warranty to the original purchasing owner upon timely registration or Consumer Choice Warranty
Manufacturer's Stated Benefits:
  • Modes: Cool, Heat, Dry, Fan, Auto
  • Auto-restart function
  • Louver control (fixed or swing)
  • Follow Me (senses temperature at handheld remote)
  • Heating Setback (46° F Heating Mode)
  • Aluminum Blue Hydrophilic pre-coated fins

Carrier Ductless Outdoor Heat Pumps

37MPRA

Infinity® Mini Split Heat Pump with Basepan Heater

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Model Family: 37MPRA
Purpose: Heat & Cool
Zone Capability: Single- Zone
Efficiency SEER2: Up to 35.1 SEER2
Efficiency EER2: N/A
Efficiency HSPF2: Up to 30 HSPF2
Energy Star Rated: ENERGY STAR® certified
Refrigerant Type: Puron Advance
Sound Level: As low as 57 decibels
Compressor: Inverter Compressor
Factory Warranty Parts: 10-year parts limited warranty to the original purchasing owner upon timely registration or Consumer Choice Warranty
Factory Warranty Compressor:
Manufacturer's Stated Benefits:
  • Built-in basepan heater
  • Auto-restart function
  • High Heat Capability
  • Humidity Control
  • Heavy-gauge, galvanized steel construction
37MGRA

Performance™ Multi-Zone High-Heat Heat Pump with Basepan Heater

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Model Family: 37MGRA
Purpose: Heat and Cool
Zone Capability: Multi-zone
Efficiency SEER2: Up to 25.2 SEER2
Efficiency EER2: N/A
Efficiency HSPF2: Up to 10.4 HSPF2
Energy Star Rated: Select sizes ENERGY STAR® certified
Refrigerant Type: Puron Advance
Sound Level: as low as 59.5 decibels
Compressor: Inverter
Factory Warranty Parts: 10-year parts limited warranty upon timely registration or Consumer Choice Warranty
Factory Warranty Compressor: 10-year parts limited warranty upon timely registration or Consumer Choice Warranty
Manufacturer's Stated Benefits:
  • Humidity Control
  • Built-In Basepan Heater
  • Built-In Occupancy Sensor
37MARA

Performance™ Mini Split Heat Pump

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Model Family: 37MARA
Purpose: Heat and Cool
Zone Capability: Single zone
Efficiency SEER2: Up to 26 SEER2
Efficiency EER2: N/A
Efficiency HSPF2: Up to 13.9 HSPF2
Energy Star Rated: Select sizes ENERGY STAR® certified
Refrigerant Type: Puron Advance
Sound Level: as low as 52.5 decibels
Compressor: inverter driven compressor
Factory Warranty Parts: 10-Year Parts Limited Warranty with Registration or Consumer Choice Warranty
Factory Warranty Compressor: N/A
Manufacturer's Stated Benefits:
  • Humidity Control
  • Built-in basepan heater
  • Anti-corrosive fin coating
37MHRAQ

Comfort™Outdoor Ductless Single-Zone Heat Pump Unit

Model Family: 37MHRAQ
Purpose: Heat & Cool
Zone Capability: Single-zone
Efficiency SEER2: Up to 22.4 SEER2
Efficiency EER2: N/A
Efficiency HSPF2: Up to 9.4 HSPF2
Energy Star Rated: Select sizes ENERGY STAR® certified
Refrigerant Type: Puron Advance
Sound Level: As low as 52.5 decibels
Compressor: Inverter
Factory Warranty Parts: 10-year parts limited warranty to the original purchasing owner upon timely registration or Consumer Choice Warranty
Factory Warranty Compressor: N/A
Manufacturer's Stated Benefits:

    Ductless High Wall Indoor Air Conditioners

    45MHHAC

    Comfort™ High Wall Indoor Unit

    Model Family: 45MHHAC
    Purpose: Cool Only
    Zone Capability: Single-Zone
    Efficiency SEER2: Dependent upon outdoor unit pairing
    Efficiency EER2: Dependent upon outdoor unit pairing
    Matching Outdoor Unit: Single-Zone: 37MHRAC
    Matching Outdoor Unit: Multi-Zone: N/A
    Energy Star Rated: Select sizes ENERGY STAR® certified
    Refrigerant Type: Puron Advance
    Number of Fan Speeds: Four fan speeds
    Sound Level: As low as 19 decibels
    Wireless Remote: Yes
    Factory Warranty Parts: 10-year parts limited warranty to the original purchasing owner upon timely registration or Consumer Choice Warranty
    Manufacturer's Stated Benefits:
    • Auto-restart function
    • Up-down louver control (fixed or swing)
    • Improved serviceability with easy access to fan and electrical connections
    • Attractively styled, high−impact polystyrene.

    Carrier Ductless Outdoor Air Conditioner

    37MHRAC

    Comfort™ Series Single Zone Mini Split Air Conditioner - Cooling Only

    Model Family: 37MHRAC
    Purpose: Cool Only
    Efficiency SEER2: Up to 22.2 SEER2
    Efficiency EER2: N/A
    Zone Capability: Single - Zone
    Energy Star Rated: No
    Refrigerant Type: Puron Advance
    Sound Level: Select sizes ENERGY STAR® certified
    Compressor: Rotary Inverter
    Factory Warranty Parts: 10-year parts limited warranty with registration
    Factory Warranty Compressor: 10-year parts limited warranty with registration
    Manufacturer's Stated Benefits:
    • Anti-corrosive fin coating
    • Auto-restart function
    • Heavy-gauge, galvanized steel construction
    • Primed and coated with a 100% coverage, baked-enamel finish in white