Best DIY Mini Splits (True DIY, Pre-Charged Line Sets)
This page applies the strictest definition of DIY in the category: the line set itself is factory pre-charged with quick-connect fittings, so installation needs no vacuum pump, no manifold gauges, and no flaring. By that definition, every priced true-DIY system currently sold in the US that we could verify is a MRCOOL - the six systems below. Everything else marketed as 'DIY-friendly' ships a pre-charged condenser with a standard flare line set, which is a different job entirely.
Computed from the dataset
- 6 verified systems with first-hand prices, from $1,649 to $3,329.
- Cheapest: MRCOOL DIY Easy Pro 12k at $1,649 (verified at HVACDirect).
- Highest SEER2: MRCOOL DIY 5th Gen 24k at 22.7 SEER2 ($3,329).
- Best heating rating: MRCOOL DIY Easy Pro 12k, rated to -13°F ($1,649).
- True DIY in this list: 6 system(s) with pre-charged line sets, from $1,649.
| System | Zones | BTU | Coverage | SEER2 | Heats to | Install | Price | |
|---|---|---|---|---|---|---|---|---|
| MRCOOL DIY Easy Pro 12k EZPRO-12-HP-11516D-O | 1 | 12,000 | up to 550 sq ft | 19.5 | -13°F | True DIY | $1,649 at HVACDirect | Check price at HVACDirect |
| MRCOOL DIY Easy Pro 18k EZPRO-18-HP-23016D-O | 1 | 18,000 | up to 800 sq ft | 20 | -13°F | True DIY | $1,827 at HVACDirect | Check price at HVACDirect |
| MRCOOL DIY Easy Pro 24k EZPRO-24-HP-23016D-O | 1 | 24,000 | ~1,050 sq ft | 18.9 | -13°F | True DIY | $2,149 at HVACDirect | Check price at HVACDirect |
| MRCOOL DIY 5th Gen 12k DIY-12-HP-WM-115D25-O | 1 | 12,000 | up to 550 sq ft | 22 | -13°F | True DIY | $2,359 at HVACDirect | Check price at HVACDirect |
| MRCOOL DIY 5th Gen 18k DIY-18-HP-WM-230D25-O | 1 | 18,000 | up to 800 sq ft | 21.5 | -13°F | True DIY | $2,909 at HVACDirect | Check price at HVACDirect |
| MRCOOL DIY 5th Gen 24k DIY-24-HP-WM-230D25-O | 1 | 24,000 | up to 1,050 sq ft | 22.7 | -13°F | True DIY | $3,329 at HVACDirect | Check price at HVACDirect |
Buying notes
- Line-set length is the decision inside this table: 25 ft (DIY line) vs 16 ft (Easy Pro). Measure your run before choosing.
- Klimaire's KIWQ-KOIQ 12k is also a genuine pre-charged DIY system, but its manufacturer store shows a placeholder price, so it carries no buy link yet.
- You still need power: 115V models are the friendliest; 230V systems may need a new circuit and disconnect.