MrCool Mini Split
The DIY star: pre-charged quick-connect line sets let a handy homeowner install it without EPA-608 or a vacuum pump.
MrCool at a glance
| Positioning | DIY / pre-charged friendly |
|---|---|
| DIY installable | Yes — pre-charged / quick-connect line |
| BTU range | 9k–36k (single) · up to 4–5 zones |
| Tonnage | ¾–3 ton |
| Efficiency (SEER2 / HSPF2) | Up to ~21.5 SEER2 · Up to ~9.0 HSPF2 |
| Zones | Single & multi-zone (DIY + Universal lines) |
| Cold-climate heat | Yes — DIY 4th Gen heats to about -13°F |
| Warranty | 7-yr compressor · 5-yr parts (registered) |
| Equipment price (single-zone) | ≈$1,000–2,200 equipment (single-zone DIY) |
Notable MrCool models
- DIY 4th Gen 12k/24k
- DIY-Multi 2–5 zone
- Universal central heat pump
- Advantage (pro-install)
How MrCool compares
Where MrCool sits against the other major US mini-split brands:
| Brand | DIY | BTU range | SEER2 | Cold-climate heat | Warranty | Equipment price |
|---|---|---|---|---|---|---|
| MrCool | Yes | 9k–36k (single) · up to 4–5 zones | Up to ~21.5 SEER2 | Yes — DIY 4th Gen heats to about -13°F | 7-yr compressor · 5-yr parts (registered) | ≈$1,000–2,200 equipment (single-zone DIY) |
| Pioneer | Yes | 9k–36k (single) · multi available | Up to ~20 SEER2 | Select WYS/Diamante models rated for low-temp heat | 5-yr compressor · 2-yr parts (typical) | ≈$700–1,500 equipment (single-zone) |
| Senville | Yes | 9k–36k (single) · multi available | Up to ~19 SEER2 | LETO/AURA heat down to about -22°F (select models) | 2-yr parts · 5–7-yr compressor | ≈$800–1,700 equipment (single-zone) |
| Cooper&Hunter | Yes | 9k–36k (single) · up to 5 zones | Up to ~20 SEER2 | Hyper series rated for cold-climate heating | 5-yr compressor · 1–2-yr parts | ≈$900–1,900 equipment (single-zone) |
| Mitsubishi | Pro install | 6k–36k (single) · up to 8 zones | Up to ~28 SEER2 | Hyper-Heat (H2i) heats to -13°F at 100% capacity | 12-yr compressor / parts (with Diamond installer) | ≈$1,800–3,500 equipment (single-zone) |
| Daikin | Pro install | 9k–36k (single) · multi-zone | Up to ~24.5 SEER2 | Aurora series heats to about -13°F | 12-yr parts (registered) | ≈$1,700–3,300 equipment (single-zone) |
| Fujitsu | Pro install | 9k–36k (single) · multi-zone | Up to ~24 SEER2 | XLTH series heats to about -15°F | 10–12-yr parts & compressor (registered) | ≈$1,600–3,200 equipment (single-zone) |
| LG | Pro install | 9k–36k (single) · multi-zone | Up to ~25 SEER2 | LG Extended Low Ambient / Red models for cold heat | 10-yr parts & compressor (registered) | ≈$1,400–3,000 equipment (single-zone) |
| Gree | Pro install | 9k–36k (single) · multi-zone | Up to ~38 SEER2 (Sapphire) | Sapphire / Livo GEN4 cold-climate heating | 7–10-yr compressor (registered) | ≈$1,000–2,400 equipment (single-zone) |
Frequently asked questions
Can you really install a MrCool DIY yourself?
Yes — the MrCool DIY line ships with pre-charged, quick-connect line sets, so a handy homeowner can mount the units and connect the lines without flaring, a vacuum pump or EPA-608 refrigerant certification. You still need a dedicated electrical circuit, which should be wired by a licensed electrician, and you must follow the manual on line-set length and mounting. The refrigerant work — the part that normally needs a pro — is what MrCool DIY removes.
How much does a MrCool mini split cost?
A MrCool DIY single-zone system typically runs about $1,000–$2,200 for the equipment depending on BTU, and a multi-zone DIY setup $2,500–$5,000+. Because you can install it yourself, you save the $2,000–$5,000 a pro install would add — the main reason MrCool is the most-searched DIY mini-split. A dedicated circuit from an electrician is the one cost to plan for.
Is MrCool a good brand?
MrCool is the leading DIY-focused US mini-split brand, best known for making self-installation genuinely possible. Its 4th Gen DIY units offer competitive efficiency (around 20–22 SEER2) and cold-climate heating to roughly -13°F, backed by a 7-year compressor warranty when registered. For homeowners who want to install themselves and save on labor, it is a strong choice; for maximum efficiency or the longest warranties, premium pro-install brands still lead.
Next steps
- Not sure what size you need? Use the mini-split sizing calculator.
- Compare the field: best mini-splits · best DIY mini-splits.
- Other brands: Pioneer, Senville, Cooper&Hunter, Mitsubishi, Daikin, Fujitsu, LG, Gree.
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