Product overview
MRCOOL DIY 18K 18,000 BTU Ceiling Cassette Mini Split 5th Gen Air Conditioner and Heat Pump
MRCOOL's 5th generation DIY 18K heat pump mini split air conditioner with the ceiling cassette 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 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!
Features:
- Designed for easy installation and comes with pre-charged 25 Ft line set
- 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
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 | 24 SEER2 · ENERGY STAR certified |
| Line set | Custom |
| Mount type | Ceiling |
| 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.
