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MRCOOL
MRCOOL 18,000 Btu 23.9 SEER2 DIY 5th Gen 2-Zone Ductless Mini Split System - 6K-18K

MRCOOL 18,000 Btu 23.9 SEER2 DIY 5th Gen 2-Zone Ductless Mini Split System - 6K-18K

Best price now

$2,943.00at The AC OutletChecked Nov 9

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Price facts

  • Last seen at $2,943.00 at The AC Outlet on Nov 9.

Our take on the MRCOOL 18,000 Btu 23.9 SEER2 DIY 5th Gen 2-Zone Ductless Mini Split System - 6K-18K

The MRCOOL DIY 5th Gen 2-Zone is a ductless mini split that cools or heats two rooms independently from one outdoor condenser. It runs inverter-driven compressors rated up to about 23.9 SEER2 and works from -13 F heating to 122 F cooling. Smart control comes through the SmartHVAC app plus Alexa and Google Assistant. It suits homeowners who want multi-room comfort without paying an HVAC crew, since the DIY line is built for pre-charged, line-set connections. Against single-zone systems it adds a second room on one condenser; against pro-installed brands it trades some service network for self-installation.

Best forTwo-room homes or additionsDIY homeowners avoiding install laborCold-climate heating down to -13 FSmart-home users wanting app and voice control
Pros
  • Two zones run independently from one condenser
  • High efficiency at up to ~23.9 SEER2
  • Wide operating range, -13 F heat to 122 F cool
  • SmartHVAC app, Alexa and Google Assistant control
  • Gold Fin coil coating resists corrosion
  • Auto-restart after power outages
Cons
  • DIY install still needs electrical and refrigerant know-how
  • Efficiency varies by which indoor head sizes you pair
  • Two indoor heads mean two filters to clean
  • Warranty depends on proper installation

MRCOOL 18,000 Btu 23.9 SEER2 DIY 5th Gen 2-Zone Ductless Mini Split System - 6K-18K prices at every store

  • The AC OutletNew

    In stockReturn policy

    $2,943.00Checked Nov 9
    Visit The AC Outlet

What reviewers say

Owners of the MRCOOL DIY line generally praise the straightforward install and quiet, effective cooling and heating. Complaints center on app reliability and the effort of setting up two zones.

What people mention
  • InstallationPraisedOwners say the pre-charged DIY connections make self-installation realistic for capable homeowners.
  • NoisePraisedIndoor units are described as quiet enough for bedrooms.
  • App controlMixedThe SmartHVAC app works but some users find pairing and scheduling unreliable.
  • HeatingPraisedUsers report solid heat output in cold weather down to the rated low.
  • Setup effortCriticisedGetting two zones running takes more time and care than a single-zone unit.

About the MRCOOL 18,000 Btu 23.9 SEER2 DIY 5th Gen 2-Zone Ductless Mini Split System - 6K-18K

The MRCOOL DIY 5th Gen 2-Zone Mini Split System is a ductless system that heats and cools two rooms independently. It can pair two distinct zones, such as a living room and a master bedroom.

It uses inverter-driven technology that matches output to demand, which keeps temperatures stable and operation quieter. The indoor units are designed for low-noise operation and have multi-speed fans. The system switches automatically between heating and cooling.

The system can be managed through the SmartHVAC app, Amazon Alexa or Google Assistant. It restores its previous settings after a power interruption. Gold Fin corrosion protection helps the outdoor unit hold up in outdoor environments.

Capacity
18,000 Btu
Zones
2 (6K-18K configuration)
Efficiency
Up to 23.9 SEER2 (actual varies by model)
Operating range
Heating down to -13°F; cooling up to 122°F ambient
Technology
Inverter-driven
Smart control
SmartHVAC app, Amazon Alexa, Google Assistant
Fan
Multi-speed indoor fans
Modes
Cooling, heating, automatic mode switching
Protection
Gold Fin corrosion protection
Power outage
Auto-restart restores previous settings
Warranty
5 years on parts, 7 years on compressor

Questions and answers

Can I really install this myself?
MRCOOL's DIY line uses pre-charged line sets and quick-connect fittings, so a handy homeowner can do much of the work. You still need a dedicated electrical circuit and should follow local codes; some buyers hire an electrician or HVAC tech for final checks.
How does it compare with a single-zone system?
One condenser serves two indoor heads, so you get independent comfort in two rooms without a second outdoor unit. That saves space and equipment, but both zones share one compressor's capacity.
Does it work in very cold weather?
The system is rated to heat at ambient temperatures down to -13 F and cool up to 122 F. Output drops as it gets colder, as with any heat pump, so size the zones for your climate.
What controls does it offer?
You can manage each zone through the SmartHVAC app, Amazon Alexa or Google Assistant, plus the included remotes. Auto-restart returns to your last settings after a power cut.
What warranty comes with it?
MRCOOL covers parts for 5 years and the compressor for 7 years. Registration and proper installation are typically required to keep coverage valid.
What indoor head sizes can I pair?
This 2-zone system pairs heads from 6K to 18K Btu, letting you match a smaller unit to a bedroom and a larger one to a living area.
Where is the MRCOOL 18,000 Btu 23.9 SEER2 DIY 5th Gen 2-Zone Ductless Mini Split System - 6K-18K cheapest?
At The AC Outlet, for $2,943.00, as of our latest check.

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