Ductless Mini Splits

The cooling specialists at Dunes Heating and Air Conditioning in Mount Pleasant work hard to provide every customer in the area an excellent selection of top-quality home comfort products and solutions. We are proud to offer customers from Isle of Palms to Charleston a wide range of reliable ductless mini-split systems. We know this business inside and out, and serving South Carolinians is at the heart of everything we do.

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 and HSPF ratings, the more efficient they will be. 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.

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40MPHA

ST Series Wall-Mounted Heat Pumps

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Model Family: NTXWST
Purpose: Heat & Cool
Zone Capability: Single & Multi-Zone
Efficiency SEER: Up to 24.6 SEER
Efficiency EER: N/A
Efficiency HSPF: Up to 12.8 HSPF
Matching Outdoor Unit: Single-Zone: NTXSST
Matching Outdoor Unit: Multi-Zone: NTXMMX - NTXMPH
Energy Star Rated: ENERGY STAR® certified
Refrigerant Type: R410A
Number of Fan Speeds: Vertical Air Swing
Sound Level: Quiet Operation
Wireless Remote: Yes
Factory Warranty Parts: 10-year parts limited warranty to the original purchasing owner upon timely registration; one (1) year parts limited warranty without registration.

Manufacturer's Stated Benefits:
  • Available capacities in kBtu/h: 09, 12, 15, 18, 24, 30, 36
  • Smart Set
  • On/Off Timer
  • Auto Cooling/Heating Changeover
  • Auto Restart
  • Compatible with kumo cloud® control app and Thermostat Interface

40MAQ

ST Series Air Conditioner

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Model Family: NTYWST
Purpose: Cooling
Zone Capability: Single & Multi-Zone
Efficiency SEER: Up to 24.6 SEER
Efficiency EER: N/A
Efficiency HSPF: N/A
Matching Outdoor Unit: Single-Zone: NTYSST
Matching Outdoor Unit: Multi-Zone: N/A
Energy Star Rated: ENERGY STAR® certified
Refrigerant Type: R410A
Number of Fan Speeds: 5 fan speeds
Sound Level: As low as 19 dB(A)
Wireless Remote: Yes

Factory Warranty Parts: 10-year parts limited warranty to the original purchasing owner upon timely registration; one (1) year parts limited warranty without registration.

Manufacturer's Stated Benefits:

  • Available capacities in kBtu/h: 09, 12, 15, 18, 24, 30, 36
  • Smart Set
  • On/Off Timer
  • Auto Cooling/Heating Changeover
  • Auto Restart
  • Offers a wide vane for a wider angle of airflow, 150° from left to right
  • Motorized vertical vanes on GL24/D30/D36 models

40MHHQ

Konnect Series Cassette Heat Pump Indoor Unit

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Model Family: SLZ-KA
Purpose: Heat & Cool
Zone Capability: Single & Multi-Zone
Efficiency SEER: Up to 16.0 SEER
Efficiency EER: N/A
Efficiency HSPF: Up to 9.6 HSPF
Matching Outdoor Unit: Single-Zone: NTXSKS
Matching Outdoor Unit: Multi-Zone: NTXMMX – NTXMPH
Energy Star Rated: N/A
Refrigerant Type: R410A
Number of Fan Speeds: 5 fan speeds
Sound Level: Quiet Operation
Wireless Remote: Yes

Factory Warranty Parts: 10-year parts limited warranty to the original purchasing owner upon timely registration; one (1) year parts limited warranty without registration.

Manufacturer's Stated Benefits:

  • Available capacities in kBtu/h: 9, 12, 15
  • Ventilation air knockouts
  • Built-in condensate lift mechanism (up to 20″)
  • Whisper-quiet operation
  • Also available for single-zone application

40MHHC

Konnect Series Floor Mounted Heat Pumps Indoor Unit

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Model Family: NTXFKS
Purpose: Heat & Cool
Zone Capability: Single
Efficiency SEER: Up to 28.2 SEER
Efficiency EER: N/A
Efficiency HSPF: Up to 13 HSPF
Matching Outdoor Unit: Single-Zone: NTXFKS
Matching Outdoor Unit: Multi-Zone: NTXMMX - NTXMPH
Energy Star Rated: ENERGY STAR® certified
Refrigerant Type: R410A
Number of Fan Speeds: 5 fan speeds
Sound Level: Quiet Operation
Wireless Remote: Yes
Factory Warranty Parts: 10-year parts limited warranty to the original purchasing owner upon timely registration; one (1) year parts limited warranty without registration.
Manufacturer's Stated Benefits:
  • Available capacities in kBtu/h: 9, 12, 15, 18
  • 21.0–28.2 SEER
  • Rapid heating
  • Operates with 25% less power than other models
  • Recessing optional

40MBCQ

PH Series High-Efficiency Heat Pumps

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Model Family: NTXWPH
Purpose: Heat & Cool
Zone Capability: Single & Multi-Zone
Efficiency SEER: Up to 33.1 SEER
Efficiency EER: N/A
Efficiency HSPF: Up to 13.5 HSPF
Matching Outdoor Unit: Single-Zone: NTXSPB

Matching Outdoor Unit: Multi-Zone: NTXMMX – NTXMPH

Energy Star Rated: ENERGY STAR® certified
Refrigerant Type: R410A
Number of Fan Speeds: 5 fan speeds
Sound Level: Quiet Operation
Wireless Remote: Yes
Factory Warranty Parts: 10-year parts limited warranty to the original purchasing owner upon timely registration; one (1) year parts limited warranty without registration.
Manufacturer's Stated Benefits:
  • Available capacities in kBtu/h: 06, 09, 12, 15, 18
  • Double-vane air delivery for enhanced circulation
  • Optional Thermostat Interface (PAC-US444CN-1) to allow for operation with third-party thermostats
  • Smart Set
  • Weekly Timer
  • On/Off Timer
  • Auto Cooling/Heating Changeover
  • Auto Restart

See What Our Customers Are Saying

Years of Experience and Reviews
  • “This is the best experience I've ever had getting work done on my house. My AC stopped working and Nick was able to locate the issue and offer me an affordable fix.”

    - Rachel G.
  • “We were fortunate to find Nick and Dunes Heating & AC soon after moving to Mt. Pleasant.”

    - Brian E.
  • “Seldom do I have the chance to provide a contract service five stars. I was totally pleased with the service Dunes Heating and Air Conditioning provided me.”

    - Paul V.

Contact Us Today

Call us at (843) 892-5444 or fill out the form below to schedule a service!

Emergency Services Available 24/7

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