Gree Multi Gen2 18,000 BTU 2-Zone (9k+9k Livo) vs Gree Multi21+ R-32 18,000 BTU 2-Zone
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Quick take: The Gree Multi21+ R-32 18,000 BTU 2-Zone replaced the Gree Multi Gen2 18,000 BTU 2-Zone (9k+9k Livo), which is discontinued.
| Spec | Gree Multi Gen2 18,000 BTU 2-Zone (9k+9k Livo) | Gree Multi21+ R-32 18,000 BTU 2-Zone |
|---|---|---|
| Price | $2,406 | $3,580 |
| Rating | — | — |
| Type | Multi-Zone | Multi-Zone |
| Capacity | 18k BTU | 18k BTU |
| Coverage | ~800 sq ft | — |
| SEER2 (cooling) | 21 | 21 |
| HSPF2 (heating) | 10 | 10 |
| Low-Ambient Heating | to -5°F | to -22°F |
| Max heat at 5°F (NEEP) | 13,600 BTU | 13,800 BTU |
| Heat kept at 5°F | 76% of rated | 77% of rated |
| Refrigerant | R-410A | R-32 |
| Zones | 2 zones | 2 zones |
| Voltage | 230V | 230V |
| WiFi Control | Built-in | Built-in |
| Install | Priced as the condenser plus two Livo Gen4 9k wall heads (line sets typically sold separately — budget another $150-300). Pro install: flares, vacuum, and a dedicated 230V circuit. Mind Gree's connected-capacity table; the 18k condenser is happiest with 15k-21k of attached heads, and each zone has its own line-length budget. | This is a professional install: flared lines, evacuation, and a 208/230V circuit (Gree lists MCA 14.5A, max breaker 20A). The condenser comes precharged for 33 ft of total piping, allows 131 ft in total but no more than 66 ft to the furthest head, and handles 49 ft of rise. Linesets aren't included in HVACDirect's package price. Every indoor unit must be an R-32 model, because R-410A heads won't connect. |
| Warranty | 5-year limited parts warranty as sold online; longer coverage requires a registered Gree installing dealer | 7-year compressor / 5-year parts with online registration |
Pros & cons
Gree Multi Gen2 18,000 BTU 2-Zone (9k+9k Livo)
- ✓Gree manufactures its own G10 inverter compressors — proven at massive scale
- ✓Supports mixed head types including cassettes and slim-duct on the same condenser
- ✓Mid-$2,400s for condenser plus both heads splits the budget/premium gap
- ✓Wide US parts availability since Gree OEMs for several other brands
- ✗Rated heating floor of -5°F rules out serious cold-climate duty
- ✗Line sets usually excluded from the package price
- ✗Only a 5-year parts warranty through online channels
- ✗Single-condenser architecture: one fault drops both zones
- ✗Discontinued: Gree moved this package to R-32, so R-410A configs are leftover stock
Gree Multi21+ R-32 18,000 BTU 2-Zone
- ✓Gree rates heating down to -22°F, up from -5°F on the Multi Gen2 package it replaces
- ✓Wi-Fi factory installed, so you don't need an adapter for app control
- ✓Warranty is now 7-year compressor / 5-year parts with registration, up from 5-year parts only online
- ✓Takes Livo, Vireo, Envo or Sapphire wall heads as well as cassettes, slim duct, floor/ceiling and console units
- ✗About $3,580 for the condenser and two heads, roughly $1,170 more than the old package, and linesets are extra
- ✗Minimum heating output of 7,300 BTU/h is more than one lightly loaded 9k room needs, so expect cycling when only one zone calls
- ✗One condenser: a fault takes out both rooms
- ✗Cold output is unchanged from the R-410A Multi: NEEP lists 13,800 BTU/h at 5°F with non-ducted heads, about 77% of rated, against the old condenser's 13,600
- ✗R-32 heads only: you can't reuse an existing R-410A Livo