Why "zones" matter more than tonnage
Central HVAC is sized in tons for the whole house. Ductless systems are sized per room, then aggregated — so the number that actually determines what a system can do for a multi-room retrofit is how many indoor units ("zones") one outdoor condenser can run at once, and how much total capacity that condenser has to split between them. A 3-ton multi-zone outdoor unit doesn't deliver 3 tons to each of five rooms simultaneously — it shares a pool of capacity across whichever zones are calling for heat or cooling at that moment, usually with some built-in oversizing allowance (commonly 130–150% of rated capacity across all connected indoor units). That's why the comparison below reports maximum zones and maximum connected outdoor capacity separately from single-zone capacity range: a homeowner adding one ductless head to a single room cares about the single-zone lineup; a homeowner replacing central air room-by-room cares about how far the multi-zone platform scales.
Cold-climate variants are a separate product, not a firmware setting
Every brand below except Bosch and Carrier markets a distinctly named cold-climate line — Mitsubishi's H2i Hyper-Heating, Daikin's AURORA, Fujitsu's Orion XLTH/XLTH+, LG's LGRED°, Gree's ULTRA, Panasonic's ClimaPure XZ/EXTERIOS Z, and MRCOOL's 5th Generation. These aren't the same compressor with a colder sticker — they use different compressor staging and controls to keep delivering rated or near-rated heating output well below the point where a standard-line heat pump would lean hard on backup resistance heat. Bosch and Carrier don't market a separately branded cold-climate line, but both ship a standard base-pan heater and publish minimum operating temperatures (−13°F and −22°F, respectively) that are competitive with the named cold-climate lines from other brands — the marketing distinction doesn't always track the underlying hardware capability.
The comparison
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| Manufacturer — Lineup |
Single-zone range |
Max zones / outdoor unit |
Max multi-zone capacity |
Cold-climate variant |
Refrigerant |
Installed cost, single-zone |
Source |
| Mitsubishi Electric — M-Series (H2i Hyper-Heating)Ductless single- and multi-zone, wall/ducted indoor styles |
6,000–36,000 Btu/h |
8 |
60,000 Btu/h (MXZ-C) |
H2i Hyper-Heating INVERTER, −13°F |
R-454B (R-410A legacy) |
$1,200–$7,800 |
Mitsubishi · Angi |
| Daikin — AURORA / AURORA MXTDuctless single- and multi-zone wall-mount |
9,000–24,000 Btu/h |
5 (legacy: 8) |
40,000 Btu/h (5MXT40) |
AURORA is the cold-climate line, −13°F |
R-32 |
$900–$7,600 |
Daikin · Angi |
| Fujitsu General — AIRSTAGE / HalcyonDuctless single- and multi-zone wall-mount |
9,000–48,000 Btu/h |
5 (legacy: 8) |
45,000 Btu/h |
Orion XLTH −15°F / XLTH+ −22°F |
R-32 (R-410A legacy) |
$1,100–$8,300 |
Fujitsu · Angi |
| LG — Art Cool / Multi F (LGRED°)Ductless single- and multi-zone wall-mount |
9,000–48,000 Btu/h |
8 (LGRED° multi: 6) |
60,000 Btu/h (LMU600HV) |
LGRED°, −13°F |
R-32 |
$900–$7,600 |
LG · Angi |
| Gree — Sapphire / Multi21+ / FLEXXDuctless single- and multi-zone wall-mount |
9,000–36,000 Btu/h (to 60,000 w/ FLEXX) |
5 (MultiPRO: 10) |
42,000 Btu/h (MultiPRO: 60,000) |
ULTRA −31°F; Sapphire R-32 −22°F |
R-32 (R-410A legacy) |
n.a.† |
Gree · HomeGuide |
| Bosch — Climate 5000Ductless single- and multi-zone wall-mount |
9,000–36,000 Btu/h |
5–6‡ |
48,000 Btu/h |
No named variant; base-pan heater standard, −13°F |
R-454B (R-410A legacy) |
n.a. |
Bosch |
| Carrier — 38 Series / Infinity 35 (Midea-built)Ductless single- and multi-zone wall-mount |
6,000–36,000 Btu/h |
5 |
48,000 Btu/h |
No named variant; Low Ambient Heating to −22°F |
R-410A (Infinity 35: R-454B) |
n.a.† |
Carrier · HomeGuide |
| Panasonic — Compact / ClimaPure XZ / EXTERIOS ZDuctless single- and multi-zone wall-mount |
8,700–24,000 Btu/h |
5 |
36,000 Btu/h |
ClimaPure XZ / EXTERIOS Z, −15°F |
R-32 |
$1,200–$7,800 |
Panasonic · Angi |
| MRCOOL — DIY 5th GenerationDuctless single- and multi-zone, self-install line sets |
9,000–36,000 Btu/h |
6 |
55,000 Btu/h |
Rated −13°F (retailer-named "Hyper Heat" to −22°F) |
R-454B (R-410A on 4th Gen) |
$700–$5,900 |
MRCOOL · Angi |
The DIY outlier: MRCOOL
Eight of the nine lineups above are sold exclusively through HVAC contractors and require licensed refrigerant handling — Fujitsu's own literature states plainly, "Always use a licensed installer or contractor to install this product. Do not try to install the product yourself," and Gree requires proof of professional installation to honor its warranty, listing a vacuum pump and micron gauge among the required tools (Fujitsu Halcyon brochure; Gree full-line catalog). MRCOOL's DIY line is built around a different premise: pre-charged "Quick Connect" line sets that the company says eliminate "specialized tools, refrigerant handling, and professional installation barriers," with "no vacuuming or brazing" required (MRCOOL DIY Select brochure).
That changes the cost math, not just the install process. A retailer cost breakdown puts MRCOOL equipment-only pricing at roughly $1,100–$1,400 for a 9,000 Btu/h single-zone system up to $2,500–$3,329 for 24,000 Btu/h, and a full self-installed 12,000 Btu/h project (including electrical work and permit, but no HVAC labor) at $1,769–$1,919 total — versus roughly $4,200–$6,800 for the same size contractor-installed (AC Direct — MRCOOL DIY cost breakdown). Angi's own brand table puts MRCOOL's installed range at $700–$5,900, the lowest of the six brands it tracks, consistent with a meaningful share of MRCOOL buyers skipping professional labor entirely (Angi). The tradeoff: self-installation still means running and insulating line sets correctly, and a poor DIY install can undermine the efficiency and reliability numbers a professionally commissioned system would otherwise deliver — this page reports the cost gap, not a recommendation on which path fits a given project.
Installed cost by zone count (not brand-specific)
Since no cost-guide publisher breaks out installed pricing by both brand and zone count, this table uses the two publishers that report a full by-zone-count table for ductless mini-splits generally.
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| Zones |
Angi (2025 data) |
HomeAdvisor |
| 1 | $500–$5,000 | $500–$5,000 |
| 2 | $1,400–$7,700 | $1,400–$7,700 |
| 3 | $1,800–$9,100 | $1,800–$9,100 |
| 4 | $2,600–$10,700 | $2,600–$10,700 |
| 5 | $4,800–$18,000 | $4,400–$12,000 |
Sources: Angi, "How Much Does It Cost to Install a Mini-Split?" and HomeAdvisor, "How Much Does Mini Split Installation Cost?" A third publisher, HomeGuide, reports higher installed figures for the same zone counts ($2,500–$6,000 for 1-zone, $6,500–$11,000 for 3-zone) — the spread between publishers is itself a useful reminder that quoted installed cost varies significantly by region, wall type, and how much line-set run and electrical work the job needs (HomeGuide).
What the numbers show
A few patterns hold across all nine lineups researched for this page:
- Every current-generation lineup has moved off R-410A — R-32 (Daikin, Fujitsu's newest, LG, Gree's newest, Panasonic) or R-454B (Mitsubishi, Bosch, MRCOOL, Carrier's newest Infinity 35) are now the default, ahead of the EPA's phasedown of high-GWP refrigerants. Only legacy platforms still being sold alongside newer lines (Carrier's 38 Series, Gree's older FLEXX/MultiPRO, Fujitsu's AOU48RLXFZ1) remain on R-410A.
- Five zones per outdoor unit is the current mainstream ceiling — Daikin, Fujitsu, Gree's Multi21+, Bosch, Carrier, and Panasonic all cap their standard multi-zone platform at 5. Mitsubishi, LG, MRCOOL, and Gree's MultiPRO push to 6–10 zones, but usually on a separate, larger outdoor unit rather than the brand's standard line.
- Cold-climate ratings cluster around −13°F to −15°F, with Gree's ULTRA line (−31°F) and Fujitsu's Orion XLTH+ (−22°F) as clear outliers at the extreme end. Bosch and Carrier don't market a named cold-climate variant but publish minimum operating temperatures (−13°F and −22°F) that would qualify as cold-climate-competitive if branded that way.
- Installed-cost data is thin at the brand level. Only Mitsubishi, Daikin, Fujitsu, LG, Panasonic, and MRCOOL appear in a cost-guide publisher's installed-price brand table; Gree, Bosch, and Carrier don't, which is why this page reports "n.a." for those cells rather than an estimate. Where a brand is missing, the by-zone-count general table is the better reference point.
- MRCOOL's DIY positioning creates the widest total-cost spread of any brand here — a self-installed single-zone project can land under $2,000 total, while a comparably sized professionally installed system from any of the other eight brands typically runs $2,500 or more once labor, permitting, and commissioning are included.
How to use this if you're shopping
Match the platform to the job before comparing brands. A single room needing supplemental heating or cooling only needs a single-zone lineup — compare on cold-climate rating and single-zone installed cost. A whole-house ductless retrofit needs a multi-zone platform, where maximum zones and maximum connected capacity matter more than any one indoor unit's spec sheet; verify your installer's proposed outdoor unit actually supports the zone count and total load you need, since going over a platform's rated zone count usually means adding a second outdoor unit rather than expanding the first. And if the appeal is avoiding a $2,000–$4,000 professional-installation line item, MRCOOL's DIY line is the only one of the nine reviewed here engineered for that path — every other brand's own documentation calls for licensed installation. Once you've settled on a platform and zone count, run the installed price you're quoted against the Residential Heat Pump Cost calculator or the Heat Pump vs. Traditional HVAC calculator to see how it plays out over the system's full ownership life for your ZIP code.