MRCOOL DIY 5th Gen 24,000 BTU Mini-Split | Up to 1,050 Sq Ft, 230V, No Technician Required
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🛡 Warranty: Manufacturer warranty included. Coverage varies by product — see product description below for full warranty details.
Best for: Large open spaces, workshops, garages, cabins, and additions where a smaller head would struggle.
Why people buy it: More heating and cooling capacity in a self-installable MRCOOL DIY package.
Watch out for: Oversizing can be just as bad as undersizing. Confirm the load and have a qualified electrician handle the circuit if needed.
The 24,000 BTU DIY covers a full small home or a large open off-grid space up to 1,050 square feet. This is the unit for homesteaders who want whole-home single-zone coverage without hiring an HVAC contractor at any point in the process. The pre-charged quick-connect line set keeps installation within reach of any careful builder, and the 5th Generation's cold-climate heating performance makes it a genuine year-round solution from the deep south to the northern tier.
MRCOOL DIY 24,000 BTU Key Features
- True DIY installation — pre-charged R-454B quick-connect line set; no vacuum pump, no refrigerant license, no contractor
- Heats down to -13°F — full heat pump output in extreme cold conditions; designed for cold-climate year-round use
- Covers up to 1,050 sq ft — full small home or large open-plan cabin coverage from a single wall-mount unit
- 230V dedicated circuit — requires a 240V 30-amp breaker; standard in most homes and cabins with a proper electrical panel
- WiFi and voice control — MRCOOL Smart HVAC app, Google Assistant and Alexa compatible
- Gold Fin condenser coil — corrosion-resistant; rated for coastal, humid, and high-salt environments
- A2L refrigerant leak sensor — built-in alarm for R-454B compliance and safety
- Energy Star certified — qualifies for available energy efficiency rebates
Specifications
| Cooling Capacity | 24,000 BTU |
| Heating Capacity | 24,000 BTU |
| Coverage Area | Up to 1,050 sq ft |
| Voltage | 208-230V, 60Hz, 1PH |
| Refrigerant | R-454B (pre-charged) |
| Included Line Set Length | 25 ft |
| Max Line Set Length | 82 ft |
| Min Operating Temp (Heating) | -13°F |
| Model Number | DIY-24-HP-WM-230D25-O |
| Certifications | UL, ETL, AHRI, Energy Star |
| Warranty | 5 years parts / 7 years compressor |
What's Included
- Indoor wall-mount air handler
- Outdoor condenser unit (pre-charged with R-454B)
- 25 ft pre-charged quick-connect line set
- Smart HVAC Controller Module (WiFi)
- DIYPro cable
- Remote control
- Installation hardware and mounting plate