America's #1 selling ductless mini split — now in its 5th generation. WiFi built-in, R454B refrigerant, pre-charged line sets. No HVAC license needed. Buy from an authorized dealer with free delivery in California.
Complete systems — condenser + air handler + pre-charged line set included
Perfect for bedrooms, offices, small rooms
Most popular size — living rooms, master bedrooms, studios
Large living areas, open floor plans, garages
Large rooms, additions, converted spaces
Whole-floor cooling, large garages, workshops
| Model | BTU | Voltage | SEER2 | Sq Ft Coverage | Noise (Indoor) | Price |
|---|---|---|---|---|---|---|
| 9K BTU | 9,000 | 115V | 22 | Up to 250 sq ft | 32 dB | $2,329 |
| 12K BTU #1 SELLER | 12,000 | 115V | 22 | Up to 350 sq ft | 32 dB | $2,359 |
| 18K BTU | 18,000 | 230V | 20 | Up to 550 sq ft | 34 dB | $2,909 |
| 24K BTU | 24,000 | 230V | 20 | Up to 750 sq ft | 36 dB | $3,329 |
| 36K BTU | 36,000 | 230V | 18 | Up to 1,000 sq ft | 38 dB | $4,499 |
All models include: condenser, air handler, pre-charged line set, remote control, WiFi module. Professional installation available from $499.
A quick guide to choosing the right BTU for your space
100–250 sq ft
9K BTU — $2,329
250–350 sq ft
12K BTU — $2,359
350–550 sq ft
18K BTU — $2,909
550–750 sq ft
24K BTU — $3,329
750–1,000 sq ft
36K BTU — $4,499
Not sure? Call us at (818) 350-9083 and we'll help you size your system perfectly.
The biggest upgrade in MrCool DIY history
The new environmentally-friendly refrigerant has 78% lower global warming potential than R410A used in the 4th Gen. It's the future of HVAC — and it's here now.
Control your mini split from anywhere with the MrCool app. Works with Amazon Alexa and Google Home. Set schedules, adjust temperature, monitor energy use.
The 5th Gen indoor unit operates as low as 32 dB — quieter than a whisper. Improved compressor technology means the outdoor unit is significantly quieter too.
Up to 22 SEER2 rating means lower energy bills. In California's climate, a mini split can cut your cooling costs by 30-50% compared to central AC.
California summers are getting hotter. A MrCool DIY mini split cools your space efficiently without the $10,000+ cost of central AC installation. And in winter, it doubles as a heat pump — keeping you warm without gas bills.
Powerful cooling up to 36K BTU. Inverter compressor adjusts speed for consistent comfort. Dehumidifies as it cools.
Heat pump mode provides efficient heating down to 5°F. Replace your space heater and save on gas bills. Works in all California climates.
Mini splits use 30-50% less energy than traditional HVAC. No ductwork losses. Zone your home and only cool/heat rooms you use.
Ordering MrCool DIY mini splits for a job site? We deliver same-day to contractors across California. Bulk discounts available for 3+ units.
Shop our full catalog — add to cart and request installation in one step
The MrCool DIY mini split has revolutionized home cooling and heating. Unlike traditional HVAC systems that cost $10,000+ to install with ductwork, a MrCool DIY system can be purchased and installed for a fraction of the price. The pre-charged line sets eliminate the need for an HVAC technician to handle refrigerant, and the quick-connect fittings make installation accessible to any handy homeowner — or our professional installation team.
While brands like Mitsubishi, Daikin, and Fujitsu make excellent mini splits, they require professional installation by a licensed HVAC contractor — adding $2,000-$5,000 to the total cost. The MrCool DIY line is the only ductless mini split designed for true DIY installation. With the 5th Generation's R454B refrigerant, WiFi control, and SEER2 ratings up to 22, you get premium performance without the premium installation cost. And when you buy from Zomg The Handyman, you're buying from an authorized dealer with full warranty support.
Free delivery in California. Professional installation available. Full manufacturer warranty.