Product overview
MRCOOL's 4th generation DIY 18K heat pump mini split air conditioner is the latest and greatest of the only ductless mini-split system on the market purposefully designed for anyone to be able to install. It is perfect for garages, workshops, sunrooms, RV's, trailers, or other spaces, especially if they don't have ductwork.
The fourth generation 18,000 DIY is now even more efficient, versatile and easy to install so you don't need any special tools or training to install this high efficiency heat pump. It was designed so that anyone can easily install a MRCOOL DIY in only a few short hours without problems. You save money by installing the air conditioner yourself and also on the rebates available for ENERGY STAR models!
The MRCOOL DIY 18K mini-split is the most cost efficient air conditioner on the market today. When appropriately sized this system is the ideal DIY solution for a 800 square feet area. The MRCOOL DIY includes the new SmartHVAC Wi-Fi module that features a simple setup process, improved functionality and also works with both Amazon Alexa and Google Assistant. If you want great air comfort without paying for installation, you want a MRCOOL DIY Series ductless heat pump!
The MRCOOL DIY 18,000 BTU 22.7 SEER2 230V Ductless Mini Split AC and Heat Pump System includes pre-charged 25’ Line Sets with control wire and a Remote Control.
- Designed for easy installation and comes with 25ft. pre-charged line sets
- ENERGY STAR certified
- Includes SmartHVAC Wi-Fi control module that works with Apple and Android smart devices, Amazon Alexa, and Google assistant
- 7-year compressor warranty and 5-year parts warranty
- DC inverter and variable speed compressor technology minimizes operating costs
- Refrigerant leakage detection ensures your system remains operating efficiently
- Gold fin condenser: corrosion resistant, great for coastal areas
| BRAND NAME | MRCOOL |
| SERIES |
DIY 4th Gen E STAR
|
| MODEL |
DIY-18-HP-WM-230C25
|
| GTIN | 00810035935167 |
| UPC | 810035935167 |
| UNIT TYPE | Mini Split |
| SHORT DESCRIPTION |
MrCool E Star DIY 4th Gen 18k BTU Ductless Mini-Split Heat Pump Complete System 208-230V/60Hz
|
| BULLET 1 |
Up to 22.7 SEER2
|
| BULLET 2 |
Gold Fin® condenser: corrosion-resistant coastal living - don't worry, our condenser is built to resist long term corrosion
|
| BULLET 3 |
Variable-speed DC inverter compressor technology cuts operating costs
|
| BULLET 4 |
R-410A environmentally friendly refrigerant
|
| BULLET 5 |
Standard 7-year compressor/5-year parts warranty; register for limited lifetime compressor warranty
|
| SEER2 | 22.7 |
| EER | 12.5 |
| HSPF |
hspf4/hspf5 : 11.5/9
|
| CFM |
465.29/361.76/304.12
|
| TONNAGE | 1.5 |
| COOLING CAPACITY | 18000 BTU |
| HEATING CAPACITY | 18000 BTU |
| VOLTAGE | 208-230 V |
| PHASE | 1 |
| CYCLE | 60 Hz |
| MAX FUSE BREAKER | 30 A |
| MIN CIRCUIT AMPACITY | 18 A |
| COLOR | White |
| COLOR FAMILY | White |
| RATED LOAD | 0.25 A |
| MAX COVERAGE AREA | Up to 750 sqft |
| ZONE CAPACITY | 1 |
| REFRIGERANT TYPE | R-410A |
| REFRIGERANT VOLUME | 56.44 oz |
| DECIBEL RATING | 44.5/37/31 |
| DECIBEL RATING LOW | 31 dBA |
| DECIBEL RATING HIGH | 44.5 dBA |
| OSCILLATION | 4-W |
| INVERTER | Yes |
| MIN AMBIENT COOL | -13F - 122F |
| MIN AMBIENT HEAT | -13F - 75F |
| LINE SET LENGTH | 25ft |
| MAX LINESET LENGTH | 98.42 ft |
| LIQUID LINE SIZE | 1/4 in |
| SUCTION LINE SIZE | 1/2 in |
| COMPRESSOR MOTOR TYPE | Rotary |
| CONDENSER FAN MOTOR RPM | 810/720 |
| BLOWER MOTOR RPM | 1120/950/700 |
| AUXILIARY HEATER INCLUDED | No |
| AUXILIARY HEATER AVAILABLE | No |
| FAN ONLY OPTION | Yes |
| QUIET MODE | Yes |
| AUTO COOL | Yes |
| WIFI COMPATIBILITY | Yes |
| APP COMPATIBILITY | Yes |
| WORKS WITH IOS | Yes |
| WORKS WITH ANDROID | Yes |
| REMOTE CONTROL INCLUDED | Yes |
| UL LISTED | Yes |
| ENERGY STAR CERTIFIED | Yes |
| AHRI CERTIFIED | Yes |
| REGISTERED WARRANTY |
Limited Lifetime Compressor
|
| BASE WARRANTY |
5-year Parts/7-year Compressor
|
| BASE PARTS WARRANTY | 5-year Parts |
| REGISTERED COMPRESSOR WARRANTY |
Limited Lifetime Compressor
|
| BASE COMPRESSOR WARRANTY |
7-year Compressor
|
| HAS BATTERIES | Yes |
| CONTAINS ELECTRONICS | Yes |
| CONTAINS CHEMICALS | Yes |
| CONTAINS AEROSOL | Yes |
| CONTAINS COMPRESSED GAS | Yes |
| PROPOSITION 65 WARNING | Yes |
| RESTRICTED STATES | GU;PR;VI |
| BASE PARTS WARRANTY | None |
| REGISTERED COMPRESSOR WARRANTY | 7-year |
| BASE COMPRESSOR WARRANTY | None |
| REGISTERED REMOTE WARRANTY | 1-year |
| BASE REMOTE WARRANTY | None |
| REGISTERED LABOR WARRANTY | None |
| BASE LABOR WARRANTY | None |
| HAS BATTERIES | Yes |
| CONTAINS ELECTRONICS | Yes |
| CONTAINS CHEMICALS | Yes |
| CONTAINS AEROSOL | Yes |
| CONTAINS COMPRESSED GAS | Yes |
| PROPOSITION 65 WARNING | No |
| RESTRICTED STATES | GU, PR, VI |
| CONDENSER DEPTH | 14.29 in |
| CONDENSER HEIGHT | 27.64 in |
| CONDENSER WIDTH | 33.27 in |
| CONDENSER WEIGHT | 98.77 |
| AIR HANDLER DEPTH | 8.90 in |
| AIR HANDLER HEIGHT | 13.19 in |
| AIR HANDLER WIDTH | 42.52 in |
| AIR HANDLER WEIGHT | 30.20 lbs |
| FREIGHT CLASS | 250 |
Brochure for the DIY 4th Gen 18K Single Zone Mini Split
Install Manual for the DIY 4th Gen 18K Single Zone Mini Split
In-stock systems ship fast and free with curbside freight delivery, typically arriving in 4–10 days. Please inspect each box at delivery and note any damage on the receipt before signing — it keeps any freight claim quick and simple.
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At a glance
Tech specs
| Condenser capacity | 18,000 |
|---|---|
| Indoor unit(s) | 18K |
| Coverage area | 800 Sq Ft. |
| Zones / rooms | 1 Zone |
| Efficiency | 22 SEER2 · ENERGY STAR certified |
| Power | 230 Volt |
| Line set | Custom |
| Mount type | Wall |
| Installation | DIY Installation |
| Brand | MRCOOL |
Sizing in doubt? Our HVAC experts confirm capacity for your rooms before you order — free. Ask us about utility rebates for high-efficiency heat pumps in your area.
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Every step, start to finish — most homeowners wrap a single zone in a weekend.
