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MRCOOL DIY 5th Generation 9k BTU Ductless Mini-Split Heat Pump - Air Handler (R454B Refrigerant, 230V)

$548.80
(57 ratings)
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Customer Reviews
  • Reviews (57)
  • Questions
very happy with this air handler. runs smooth and my installer said its quality built.
Good performance overall. The R454B refrigerant is a nice eco upgrade.
Good air handler reliable and efficient. Wish filter access was easier but thats minor.
keeps my place cool in summer warm in winter little pricey but worth it
Love it. Even temps in bedrooms and living room, zero hot spots.
Super quiet outside my window barely notice it. power bill dropped too.
good airflow numbers. fan on medium is perfect for us
Super smooth system. Love how evenly it cools the whole area. Runs quiet even on high.
works fine no issues so far. cools my downstairs area nice even on hot days.
This thing is a beast. Covers my whole open-plan living space no problem.
wall mount went up easy. line sizes matched my kit perfectly
good cooling. aux heat kit is nice backup for cold snaps
install was easy-peasy with my brother. whole main floor is comfy and the filters rinse clean in minutes.
Whisper quiet air handler. Kids sleep right through it. Love the even temps
Zoning with dampers + this unit = chef’s kiss. Even temps upstairs
quiet outside unit. neighbor didn’t notice we upgraded
quiet powerful looks nice on the wall would buy again.
LOW NOISE. GREAT COMFORT. exactly what we needed for a small ranch home.
love this thing. 30k BTU handles my whole downstairs no problem.
love this unit. keeps my garage apartment comfortable year round no problem.
This ceiling cassette is fantastic very modern and space saving don’t even notice it running half the time.
impressed. quiet air handler and quick temperature changes.
Very energy efficient. My electric bill dropped and the room feels great
Best DIY system ever I didn’t think I could install it myself but the instructions made it simple Love the comfort
works good. heats well in February
works good. filter is easy to swap. would buy again
Works well mounted horizontal in my attic. No complaints on performance.
love this thing very reliable and easy to maintain.
Whisper quiet at night. Sleep mode + 115V hookup made this a no-brainer for my bedroom.
Solid unit heavy but well built works great once installed.
Love this unit. super easy to install and it cools my whole house fast. i save a bunch on my power bill too.
Love how clean it looks in the ceiling. air flow is super even all over.
quiet good heat in the winter cost less to run than my old unit
r-454b system runs efficient. night sleep mode is perfect
quiet strong heat in the winter cool in the summer worth the money
Aux heat kit helped in a cold snap. House stayed cozy.
install was pretty easy with two people good unit.
nice unit works good for my tiny guest room not loud at all.
follow me remote is neat. slight hum on high fan, still cool with it.
Very solid build quality. Looks nice inside too.
Bought this for my small office room and it cools fast and quiet. Install was pretty easy. Happy with it
Super quiet air handler. Family noticed the difference day one
I use it year-round and it handles summer heat and winter cold no problem.
good heat and cool no noise at night happy with it
big cooling power good for my shop
2.5 ton handles our 1,200 sf ranch no problem. thermostat is easy for my parents.
Ducted setup tied into existing vents perfectly. App control is super handy.
keeps our open living room and kitchen comfortable year-round.
Heating is strong on chilly mornings. Alexa control is a nice bonus.
3 ton handles 1400 sq ft no sweat. app and thermostat are easy.
works great. little learning curve with wifi setup but once connected it’s smooth sailing.
install needed a pro but worth it. heats fast, cools faster. slight fan hum on high.
big unit little heavy but worth it runs smooth now
Cools my whole house quick. Very quiet and easy to use.
Love this thing. Quiet, easy to install, and keeps my bedroom cool even in the middle of summer.
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Specification

ManufacturerMRCOOL
Manufacturer Part #DIY-09-HP-WMAH-230D25-O
TypeMini-Splits
BTU Capacity9000BTU
Max. Coverage Area400sqft
Refrigerant CompatibilityR454B
Phase1
Voltage208/230V
Mount typeWall
Filter TypeReusable
ColorWhite
Features
  • Auto cool
  • DIY
  • Fan only option
  • Heat pump
  • High efficiency
  • Mobile App
  • Quiet
  • WiFi
Air Handler Dimensions LxWxH31.57 x 7.44 x 11.69in
Warranty5 Years

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About product

The 5th Generation MRCOOL® DIY® 9K BTU 22.5 SEER Ductless Mini-Split Heat Pump is a highly efficient and powerful solution for heating and cooling areas up to 400 sq. ft. Designed specifically for easy DIY installation, this system removes the need for specialized tools or professional help, allowing for a quick, hassle-free, and budget-friendly setup.

One of its most convenient features is the pre-charged 25-foot DIY® QuickConnect® line set, which comes filled with R-454B refrigerant. This line set is sold separately. This eliminates the need for vacuuming, reducing both installation time and labor costs. Additionally, the DIYPRO® cable replaces the need for electrical conduit, enhancing durability and protection against outdoor elements and wildlife.

With multiple control options, adjusting your system is effortless. You can operate it using the wireless remote, the SmartHVAC app for Apple and Android devices, or voice commands via Amazon Alexa and Google Assistant. The Follow Me function enhances comfort by adjusting airflow based on the remote’s location, ensuring even temperature distribution. Dry Mode also helps regulate humidity, keeping indoor conditions comfortable.

Built for long-term durability, the Gold Fin® Condenser offers superior corrosion resistance, making it ideal for coastal environments. Supported by industry-leading warranties—including a limited lifetime warranty, a 7-year compressor warranty, and a 5-year parts warranty—this MRCOOL® DIY® system delivers reliable, year-round climate control with innovative features and easy installation.

  • Intertek listed 5031495
  • Easy DIY installation
  • Future-proof your investment with the included DIYPro® cable, eliminating the need for electrical conduit.
  • Keep the included remote close by, and MRCOOL DIY®'s Follow Me® function will track the air temperature around you to ensure maximum comfort.
  • The MRCOOL® Smart HVAC Controller® Module and App fully support Google Assistant & Amazon Alexa out of the box.

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