Best DIY mini-splits
Pre-charged systems you can install without refrigerant tools: 18 ENERGY STAR certified models, 13 of them rated for cold climates. Identified from their series name; check the listing for quick-connect line sets before buying.
Filter by brand, efficiency or cold climate
18 models, ranked by SEER2 (cooling efficiency), then HSPF2.
| # | Cold | |||||||
|---|---|---|---|---|---|---|---|---|
| 1 | MRCOOL DIY-MULTI3-18HP230D-ODIY Series | 18,000 BTU | 13.0 | 10.0 | 13,300 | Yes | 1 | |
| 2 | MRCOOL DIY-09-HP-C-115D25-ODIY Series | 9,000 BTU | 14.0 | 11.5 | 7,300 | Yes | 1 | |
| 3 | MRCOOL DIYHH-12-HP-C-230D25-ODIY Series | 12,000 BTU | 12.8 | 10.8 | 11,500 | Yes | 2 | |
| 4 | MRCOOL DIY-12-HP-C-115D25-ODIY Series | 12,000 BTU | 12.5 | 10.2 | 8,400 | Yes | 1 | |
| 5 | MRCOOL DIY-18-HP-C-230C25DIY-series | 18,000 BTU | 12.5 | 10.3 | 11,700 | No | 2 | |
| 6 | MRCOOL DIY-MULTI5-36HP230D-ODIY Series | 36,000 BTU | 12.0 | 9.9 | 25,200 | Yes | 3 | |
| 7 | MRCOOL DIY-MULTI4-27HP230D-ODIY Series | 24,000 BTU | 12.0 | 9.5 | 19,200 | Yes | 3 | |
| 8 | MRCOOL DIY-18-HP-C-230CDIY-series | 18,000 BTU | 12.6 | 9.8 | 11,700 | No | 2 | |
| 9 | MRCOOL DIY-24-HP-C-230D25-ODIY Series | 24,000 BTU | 12.7 | 9.5 | 18,000 | Yes | 2 | |
| 10 | MRCOOL DIY-18-HP-C-230D25-ODIY Series | 18,000 BTU | 13.7 | 11.5 | 13,100 | Yes | 2 | |
| 11 | MRCOOL DIY-12-HP-C-115CDIY-series | 12,000 BTU | 12.5 | 9.0 | 6,400 | No | 1 | |
| 12 | MRCOOL DIY-MULTI6-55HP230D-ODIY Series | 48,000 BTU | 12.0 | 10.6 | 46,000 | Yes | 3 | |
| 13 | MRCOOL DIY-MULTI3-27HP230CDIY-series | 24,000 BTU | 12.0 | 9.5 | 19,000 | Yes | 1 | |
| 14 | MRCOOL DIY-MULTI6-48HP230D-ODIY Series | 42,000 BTU | 12.0 | 10.5 | 37,000 | Yes | 3 | |
| 15 | MRCOOL DIYHH-18-HP-C-230D25-ODIY Series | 18,000 BTU | 12.5 | 12.2 | 18,000 | Yes | 2 | |
| 16 | MRCOOL DIY-MULTI2-18HP230CDIY-series | 18,000 BTU | 12.5 | 9.6 | 14,000 | Yes | 1 | |
| 17 | MRCOOL DIY-24-HP-C-230CDIY-series | 24,000 BTU | 12.5 | 9.2 | 15,500 | No | 2 | |
| 18 | MRCOOL DIY-24-HP-C-230C25DIY-series | 24,000 BTU | 12.5 | 9.2 | 15,500 | No | 1 |
Questions
- What is a DIY mini-split?
- A DIY mini-split comes with pre-charged line sets and quick-connect fittings, so it can be installed without vacuuming and charging refrigerant. You still need a dedicated electrical circuit, which usually calls for an electrician.
- What is the best DIY mini-split?
- On certified efficiency the MRCOOL DIY-MULTI3-18HP230D-O leads this list at 23.9 SEER2 and 10.0 HSPF2. 13 of the 18 DIY units here are cold-climate certified.
- Do DIY mini-splits work in cold climates?
- Some do: 13 of the 18 certified DIY units listed meet the ENERGY STAR cold-climate criteria. Check the heat at 5°F column before buying for a northern home.