The Perfect Aire 4th Gen Quick Connect 24,000 BTU 230V is the better DIY mini-split overall, rated 3.8 to 2.9. The Perfect Aire 4th Gen Quick Connect 24,000 BTU 230V leads on value and warranty. The Perfect Aire 4th Gen Quick Connect 24,000 BTU 230V costs $1,309.55 less ($2,025.45 vs $3,335).
A quick-connect unit with one of the longest warranties for a self-install, priced below MrCool’s DIY 5th Gen. Its −4 °F heating limit rules it out as the only heat in a very cold climate.
Amazon $2,025.45For 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 | Perfect Aire 4th Gen Quick Connect 24,000 BTU 230V | MrCool DIY 5th Gen 24,000 BTU 230V |
|---|---|---|
| Overall rating | 3.8/5 | 2.9/5 |
| Value 35% | 82 $102 per 1,000 Btu/h of heat at 5 °F | 12 $207 per 1,000 Btu/h of heat at 5 °F |
| Cold weather 25% | 52 keeps 82% of its heat at 5 °F, heats down to -4 °F | 47 keeps 67% of its heat at 5 °F, heats down to -13 °F |
| Efficiency 20% | 47 9.5 HSPF2, 22.5 SEER2, COP 1.84 at 5 °F | 54 9.5 HSPF2, 22.7 SEER2, COP 2.00 at 5 °F |
| Warranty 15% | 78 7-year compressor, 7-year parts | 64 7-year compressor, 5-year parts |
| Noise 5% | 50 indoor noise not published (neutral score used) | 95 indoor unit from 20 dB(A) |
| Perfect Aire 4th Gen Quick Connect 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 | 24,000 Btu/h |
| Heating at 47 °F | 24,000 Btu/h | 24,000 Btu/h |
| Heating at 17 °F (max) | 24,000 Btu/h | 17,900 Btu/h |
| Heating at 5 °F (max) | 19,800 Btu/h | 16,100 Btu/h |
| Heat kept at 5 °F | 82% | 67% |
| Price per 1,000 Btu/h at 5 °F | $102 | $207 |
| Efficiency (certified) | ||
| HSPF2 (Region IV) | 9.5 | 9.5 |
| SEER2 | 22.5 | 22.7 |
| EER2 | 12.2 | 12.7 |
| COP at 5 °F | 1.84 | 2.00 |
| ENERGY STAR | ENERGY STAR Cold Climate | ENERGY STAR |
| AHRI certificate | 216498647 | 216032547 |
| Operating range | ||
| Heats down to | -4 °F | -13 °F |
| Cooling range | 5 to 115 °F | -13 to 122 °F |
| Installation | ||
| Line set connection | Quick-connect (no vacuum pump) | Quick-connect (no vacuum pump) |
| Line set | 25 ft included | 25 ft included, up to 75 ft |
| Voltage | 230 V | 230 V |
| Refrigerant | R-454B | R-454B |
| Indoor unit | 4PAMSHQCW24 | DIY-24-HP-WMAH-230D25-O |
| Outdoor unit | 4PAMSHQCO24 | DIY-24-HP-C-230D25-O |
| Build | ||
| Indoor noise | - | 20–54 dB(A) |
| Outdoor noise | - | 58.5 dB(A) |
| Wi-Fi | Built in | Built in |
| Room size (maker) | up to 1,000 sq ft | up to 1,050 sq ft |
| Weight | indoor 33.2 lb / outdoor 121.2 lb | indoor 35.9 lb / outdoor 122.8 lb |
| Warranty | 7 yr compressor, 7 yr parts | 7 yr compressor, 5 yr parts |
| Warranty with DIY install | Yes | Yes |
| Released | 2025-09 | - |
