The MrCool DIY Select 24,000 BTU 230V is the better DIY mini-split overall, rated 3.1 to 2.9. The MrCool DIY 5th Gen 24,000 BTU 230V wins on warranty. The MrCool DIY Select 24,000 BTU 230V costs $1,436 less ($1,899 vs $3,335).
For mild climates and occasional use, where a low price for a quick-connect unit matters most. The short warranty and weak cold-weather output make it a poor main heat source.
Amazon $1,899 MRCOOL DIY Direct $1,899For someone who wants a true plug-together install with no tools beyond a drill, and a warranty that survives it. Expect to pay well over the price of a flare unit with the same cold-weather output.
Amazon MRCOOL DIY Direct $3,335Prices were last checked October 21, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Each factor is scored 0-100 against the same fixed reference points for every 24,000 BTU DIY mini-split; a clear win is highlighted. How we rank explains each one.
| Factor weight | MrCool DIY Select 24,000 BTU 230V | MrCool DIY 5th Gen 24,000 BTU 230V |
|---|---|---|
| Overall rating | 3.1/5 | 2.9/5 |
| Value 35% | 50 no current price (neutral score used) | 12 $207 per 1,000 Btu/h of heat at 5 °F |
| Cold weather 25% | 50 no certified 5 °F rating or heating limit (neutral score used) | 47 keeps 67% of its heat at 5 °F, heats down to -13 °F |
| Efficiency 20% | 50 no certified efficiency ratings (neutral score used) | 54 9.5 HSPF2, 22.7 SEER2, COP 2.00 at 5 °F |
| Warranty 15% | 0 2-year compressor, 1-year parts | 64 7-year compressor, 5-year parts |
| Noise 5% | 88 indoor unit from 21.5 dB(A) | 95 indoor unit from 20 dB(A) |
| MrCool DIY Select 24,000 BTU 230V | MrCool DIY 5th Gen 24,000 BTU 230V | |
|---|---|---|
| Capacity (certified) | ||
| Size (nominal) | 24,000 BTU | 24,000 BTU |
| Cooling at 95 °F | - | 24,000 Btu/h |
| Heating at 47 °F | - | 24,000 Btu/h |
| Heating at 17 °F (max) | - | 17,900 Btu/h |
| Heating at 5 °F (max) | - | 16,100 Btu/h |
| Heat kept at 5 °F | - | 67% |
| Price per 1,000 Btu/h at 5 °F | - | $207 |
| Efficiency (certified) | ||
| HSPF2 (Region IV) | - | 9.5 |
| SEER2 | - | 22.7 |
| EER2 | - | 12.7 |
| COP at 5 °F | - | 2.00 |
| ENERGY STAR | - | ENERGY STAR |
| AHRI certificate | - | 216032547 |
| Operating range | ||
| Heats down to | - | -13 °F |
| Cooling range | - | -13 to 122 °F |
| Installation | ||
| Line set connection | Quick-connect (no vacuum pump) | Quick-connect (no vacuum pump) |
| Line set | 11.5 ft included, up to 75 ft | 25 ft included, up to 75 ft |
| Voltage | 230 V | 230 V |
| Refrigerant | R-454B | R-454B |
| Indoor unit | DIYS-24-HP-WMAH-230A13-O | DIY-24-HP-WMAH-230D25-O |
| Outdoor unit | DIYS-24-HP-C-230A11-O | DIY-24-HP-C-230D25-O |
| Build | ||
| Indoor noise | 21.5–51.5 dB(A) | 20–54 dB(A) |
| Outdoor noise | 61 dB(A) | 58.5 dB(A) |
| Wi-Fi | Built in | Built in |
| Room size (maker) | up to 1,050 sq ft | up to 1,050 sq ft |
| Weight | indoor 35.5 lb / outdoor 95.9 lb | indoor 35.9 lb / outdoor 122.8 lb |
| Warranty | 2 yr compressor, 1 yr parts | 7 yr compressor, 5 yr parts |
| Warranty with DIY install | Yes | Yes |
