MRCOOL® DIY® 5th Gen Multi-Zone 2-Zone 18,000 BTU 24 SEER (9K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump (Line Sets Not included)
【MRCOOL】 MRCOOL® DIY® 5th Gen Multi-Zone 2-Zone 18,000 BTU 24 SEER (9K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump (Line Sets Not included) Popular Feature 18k。
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1-Year + 180-Day Warranty
1-Year + 180-Day Warranty
So that you can buy with confidence, we provide a comprehensive warranty on every product.
- Warranty Period: This product comes with a 12-month standard warranty.
- Extended Warranty: Buy from our official website and you can register directly for the extended warranty, adding a further 180 days of coverage.
For more details, see the [Warranty Policy].
After your purchase, be sure to complete [Product Registration] to activate your warranty.
Free shipping
Free shipping
- Free Shipping:
All orders ship free of charge and usually arrive within 7 days. - 30-Day Return Guarantee:
If you are not satisfied, you may return or exchange the item within 30 days of delivery. - Shipping Protection (recommended):
For extra peace of mind, we recommend adding Seel Shipping Protection at checkout. With this coverage you can file a claim directly for shipping delays, loss or damage, and receive faster handling and stronger protection.
Please note that if shipping protection is not added, compensation is handled according to the carrier's rules and the applicable conditions. We are always happy to help with logistics inquiries, but the scope of compensation follows the carrier's policy.
For full details, please see the [Shipping Policy] and [Return Policy] pages.
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Features
Features
Specifications
Specifications
| Product Specifications | Value |
|---|---|
| MRCOOL® DIY® 5th Gen Multi-Zone 2-Zone 18,000 BTU 24 SEER (9K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump (Line Sets Not included) | |
| Model Number | 10685506289937 |
| Age Range | 5+ |
| Shipping | Free shipping |
| Delivery Time | 1–5 days |
Reviews (465)
Reviews (465)
Customer Reviews
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Description
MRCOOL DIY Multi Zone 5th Gen 18K BTU Dual Zone Ductless Mini Split - A Heating and AC System You Can Install By Yourself!
DIYM218HP0912
Enjoy year-round comfort in two separate rooms with the MRCOOL DIY® 5th Gen 18,000 BTU 24 SEER 2-Zone Ductless Heat Pump Split System (9K + 12K). This powerful and energy-efficient mini split is part of the only true DIY ductless system, designed so homeowners can install it themselves without special tools, training, or HVAC certification.
The system includes one 18,000 BTU condenser paired with two indoor air handlers—
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9,000 BTU unit (ideal for spaces up to ~350 sq. ft.)
-
12,000 BTU unit (ideal for spaces up to ~550 sq. ft.)
Whether it’s cooling in summer, heating in winter, or dehumidifying during wet seasons, this dual-zone mini split has you covered. The advanced DC inverter technology delivers whisper-quiet performance while maximizing energy savings, earning a 24 SEER rating.
Why Choose MRCOOL DIY 5th Gen Multi-Zone?
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Easy DIY® Installation – Pre-charged Quick Connect® line sets filled with eco-friendly R-454B refrigerant snap together with no vacuuming required.
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Smart Controls – Control your comfort with the MRCOOL Smart Controller app, Amazon Alexa, or Google Assistant.
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All-Season Performance – Heat pump technology allows efficient heating even in low outdoor temps.
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Gold Fin® Condenser – Corrosion-resistant design for long-lasting durability.
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Follow Me® Technology – Remote senses your location and adjusts airflow for personalized comfort.
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Energy Saving Modes – Auto, Sleep, and Timer functions help reduce utility bills.
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Low Ambient Cooling – Operates down to 5°F, ideal for server rooms or garages.
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Lifetime Technical Support – Backed by MRCOOL’s 7-year compressor and 5-year parts warranty,
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What’s Included
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(1) 18,000 BTU DIY Multi-Zone Heat Pump Condenser (24 SEER)
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(1) 9,000 BTU Indoor Air Handler
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(1) 12,000 BTU Indoor Air Handler
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(2) Pre-Charged Quick Connect Line Sets (length optional)
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(2) Wireless Remotes
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(1) Smart Controller (WiFi compatible)
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Installation accessories and documentation
✅ Perfect for homeowners, house flippers, remodels, and new builds, this system delivers professional-grade performance without the professional price tag.
Condenser Specifications:
| BRAND NAME | MRCOOL |
| SERIES |
DIY Multi-Zone 5th Gen
|
| MODEL |
DIY-MULTI3-18HP230D-O
|
| GTIN | 840255587617 |
| UPC | 840255587617 |
| UNIT TYPE | Mini Split |
| SHORT DESCRIPTION |
MrCool DIY 5th Gen Multi-Zone 2-Zone Condenser
|
| LONG DESCRIPTION |
The 5th Generation MrCool DIY 18K BTU 2-Zone Ductless Heat Pump Condenser is the latest in heat pump technology. This 2-zone condenser, when paired with select MrCool air handlers, is capable of producing an impressive 21 SEER efficiency rating. It also has the ability to heat even when temperatures drop to -13°F. It features robust construction which includes a Gold Fin Condenser coating so it is sure to withstand exposure to the elements. For added peace of mind, this is the only condenser on the market that comes with a limited lifetime compressor warranty. As a MrCool DIY product, this heat pump is designed specifically to be used with MrCool’s patented Pre-Charged Quick Connect Line Sets. These line sets come pre-charged with the precise amount of R-454B refrigerant. They are also equipped with quick connectors, so the line set can be connected to the condenser by the homeowner using only wrenches. This means the installation process can be performed without retaining the services of a certified technician. Let the 5th Generation MrCool DIY 18K BTU 2-Zone Ductless Heat Pump Condenser be the solution to your home’s heating and cooling needs.
|
| BULLET 1 |
Up to 21 SEER
|
| BULLET 2 |
Gold Fin® condenser: corrosion resistant - live on the coast? Don't worry, our condenser is built to resist long term corrosion
|
| BULLET 3 |
Energy Efficient DC Inverter
|
| BULLET 4 |
R-454B environmentally friendly refrigerant
|
| BULLET 5 |
Standard 7-year compressor/5-year parts warranty;
|
| SEER | 21 |
| EER | 12.5 |
| HSPF |
hspf4/hspf5 : 10.6/8.6
|
| CFM | 1764.71 |
| COOLING CAPACITY | 18000 BTU |
| HEATING CAPACITY | 19000 BTU |
| VOLTAGE | 208-230 V |
| PHASE | 1 |
| CYCLE | 60 Hz |
| MAX FUSE BREAKER | 25 A |
| MIN CIRCUIT AMPACITY | 18 A |
| COLOR | White |
| COLOR FAMILY | White |
| ZONE CAPACITY | 2 |
| REFRIGERANT TYPE | R-454B |
| REFRIGERANT VOLUME | 65.26 oz |
| DECIBEL RATING | 59 dBA |
| INVERTER | Yes |
| MIN AMBIENT COOL | 5F ~ 122F |
| MIN AMBIENT HEAT | -13F ~ 75.2F |
| MAX LINESET LENGTH |
98.42 ft TOTAL
|
| LIQUID LINE SIZE | 1/4in |
| SUCTION LINE SIZE | 3/8in |
| COMPRESSOR MOTOR TYPE | Twin - Rotary |
| CONDENSER FAN MOTOR RPM | 750/600/500 |
| WIFI COMPATIBILITY | Yes |
| APP COMPATIBILITY | Yes |
| WORKS WITH IOS | Yes |
| WORKS WITH ANDROID | Yes |
| BASE WARRANTY |
5-year Parts/7-year Compressor
|
| BASE PARTS WARRANTY | 5-year Parts |
| BASE COMPRESSOR WARRANTY |
7-year Compressor
|
| CONTAINS ELECTRONICS | Yes |
| CONTAINS CHEMICALS | Yes |
| CONTAINS AEROSOL | Yes |
| CONTAINS COMPRESSED GAS | Yes |
| PROPOSITION 65 WARNING | Yes |
| NET DEPTH | 13.46 in |
| NET HEIGHT | 26.50 in |
| NET WIDTH | 35.04 in |
| NET WEIGHT | 100.53 lbs |
| GROSS DEPTH | 17.64 in |
| GROSS HEIGHT | 29.33 in |
| GROSS WIDTH | 40.94 in |
| GROSS WEIGHT | 111.11 lbs |
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