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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 Hi-Tech Air Heating & Cooling 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 (619) 440-2080.

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 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
    45MHHAQ

    Comfort™ Indoor Ductless High Wall Heat Pump Unit

    Model Family: 45MHHAQ
    Purpose: Heat & Cool
    Zone Capability: Single
    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: 37MHRAC
    Matching Outdoor Unit: Multi-Zone:
    Energy Star Rated: Select sizes ENERGY STAR® certified
    Refrigerant Type: Puron Advance
    Number of Fan Speeds: Four fan speeds
    Sound Level: As low as 18.5 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.

    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.

    Ductless Outdoor Air Conditioners

    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

    Carrier Alternate Indoor Ductless Units

    45MBCA

    Performance™ Cassette Indoor Unit

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    Model Family: 45MBCA
    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 ENERGY STAR® certified
    Refrigerant Type: Puron Advance
    Number of Fan Speeds: Three fan speeds
    Sound Level: As low as 23.5 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)
    45MBFA

    Performance™ Floor Console Indoor Unit

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    Model Family: 45MBFA
    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: 37MGRB
    Energy Star Rated: Select sizes ENERGY STAR® certified
    Refrigerant Type: Puron Advance
    Number of Fan Speeds: Three 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
    • 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
    45MCFA

    Performance™ Ceiling And Floor Console Indoor Unit

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    Model Family: 45MCFA
    Purpose: Heat and Cool
    Zone Capability: Single and Multizone
    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 ENERGY STAR® certified
    Refrigerant Type: Puron Advance
    Number of Fan Speeds: Three Fan Speeds
    Sound Level: as low as 29 decibels
    Wireless Remote: Yes
    Factory Warranty Parts: 10-year parts limited warranty upon timely registration or Consumer Choice Warranty
    Manufacturer's Stated Benefits:
      45MCCA

      Performance™ One Way Cassette Indoor Unit

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      Model Family: 45MCCA
      Purpose: Heat and Cool
      Zone Capability: Single and Multizone
      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 ENERGY STAR® certified
      Refrigerant Type: Puron Advance
      Number of Fan Speeds: Four Fan Speeds
      Sound Level: as low as 23.5 decibels
      Wireless Remote: Yes
      Factory Warranty Parts: 10-year parts limited warranty upon timely registration or Consumer Choice Warranty
      Manufacturer's Stated Benefits:

        Carrier Commercial Outdoor Heat Pump Ductless Units

        RAVBAT2

        Toshiba Carrier LT. Commercial Ductless Heat Pump

        Model Family: RAVBAT2
        Purpose: Heat & Cool
        Zone Capability: Single Zone
        Efficiency SEER2: Up to 26 SEER2
        Efficiency EER2: N/A
        Efficiency HSPF2: Up to 12 HSPF2
        Energy Star Rated: Select Models ENERGY STAR® certified
        Refrigerant Type: Puron Advance
        Sound Level: As low as 48 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: N/A
        Manufacturer's Stated Benefits:
        • Max total piping length up to 246 ft
        • Four different styles of indoor units
        • System line up from 1 to 4-ton capacity
        37MBRA

        Performance™ Single-Zone Light Commercial Mini Split Heat Pump

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        Model Family: 37MBRA
        Purpose: Heat & Cool
        Zone Capability: Single Zone
        Efficiency SEER2: Up to 20 SEER2
        Efficiency EER2: N/A
        Efficiency HSPF2: Up to 10.4 HSPF2
        Energy Star Rated: Not ENERGY STAR® certified
        Refrigerant Type: Puron Advance
        Sound Level: As low as 62.5 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: 10-year parts limited warranty to the original purchasing owner upon timely registration or Consumer Choice Warranty
        Manufacturer's Stated Benefits:
        • Built-in Basepan Heater
        • Humidity Control
        • Built-In Occupancy Sensor1
        • Heavy-gauge, galvanized steel construction
        • Primed and coated with a 100% coverage, baked-enamel finish in white

        Carrier Commercial Indoor Heat Pump Ductless Units

        RAVBKR2

        Toshiba Carrier High Wall Indoor Unit

        Model Family: RAVBKR2
        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: RAVBAT2
        Matching Outdoor Unit: Multi-Zone:
        Energy Star Rated: Not ENERGY STAR® certified
        Refrigerant Type: Puron Advance
        Number of Fan Speeds: Three indoor unit fan speeds
        Sound Level: As low as 28 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
        • Motorized louver allows fixed or oscillating motion
        • Turbo Mode
        • One touch memory
        • Sleep Mode
        • Washable filter with on-unit filter maintenance indicator
        • System diagnostics
        • Up to 24-hour start/stop timer
        • Indoor coil freeze protection
        • Modern, flat panel indoor unit in white
        RAVBUT2

        Toshiba Carrier Cassette Indoor Unit

        Model Family: RAVBUT2
        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: RAVBAT2
        Matching Outdoor Unit: Multi-Zone:
        Energy Star Rated: Select sizes ENERGY STAR® certified
        Refrigerant Type: Puron Advance
        Number of Fan Speeds: Three indoor unit fan speeds
        Sound Level: As low as 31 decibels
        Wireless Remote: Optional
        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
        • Built-in condensate pump
        • Branch duct capability
        • Outside air intake
        • Sleep Mode
        • Power Saving Mode
        • Washable filter with on-unit filter maintenance indicator
        • System diagnostics
        • Indoor unit features a modern, flush-mount, white grille
        RAVBCT2

        Toshiba Carrier Underceiling Indoor Unit

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        Model Family: RAVBCT2
        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: RAVBAT2
        Matching Outdoor Unit: Multi-Zone:
        Energy Star Rated: Select sizes ENERGY STAR® certified
        Refrigerant Type: Puron Advance
        Number of Fan Speeds: Three indoor unit fan speeds
        Sound Level: As low as 29 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
        • Power Saving Mode
        • Auto Louver Mode
        • Outside air intake
        • Sleep Mode
        • Filter maintenance indicator
        • System diagnostics
        • Indoor coil freeze protection
        • Modern, ceiling hugging unit in white
        RAVBBT2

        Toshiba Carrier Ducted Indoor Unit

        Model Family: RAVBBT2
        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: RAVBAT2
        Matching Outdoor Unit: Multi-Zone:
        Energy Star Rated: Select sizes ENERGY STAR® qualified
        Refrigerant Type: Puron Advance
        Number of Fan Speeds: N/A
        Sound Level: As low as 25 decibels
        Wireless Remote: N/A
        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
        • Rear or bottom return
        • Outside air intake
        • Built-in condensate lift pump
        • Unit cabinet is constructed of galvanized steel. The cabinet is fully insulated for improved thermal and acoustic performance.