SplitAtlas

GREE / Sapphire R32

GREE Sapphire 18k Four-Way Cassette R-32 208/230V Mini-Split

Certified capacity
18,000 BTU/h[2]
SEER2
23 SEER2[2]
Heating floor
-22 F[1]
Voltage
230 V[1]
Install path
Professional install

Here the Sapphire premium is real. This 18,000 BTU cassette certifies at 23 SEER2 against 21 for the Vireo version of the identical head - a two-point gap at a capacity that will run a lot of hours. HSPF2 is 9.2, and it holds the -22F low-ambient rating.

That makes this a well-judged buy in the GREE cassette range: the larger the unit and the more it runs, the more an efficiency gap actually costs you. This is the size where paying up is defensible.

1 zoneProfessional installCurrent

Refrigerant generation

R-32 - current-generation refrigerant

Dealer-installation warranty note

GREE online purchases have a manufacturer-published warranty path, but buyers should keep purchase and installation documents and use a licensed HVAC contractor for diagnosis and claims.

Installation condition: Warranty claims for online/retail purchases must be completed by a contractor after an on-site diagnosis, with required documentation such as purchase receipt or installation invoice and data-plate photos.

Dealer path: GREE distributor path for distributor purchases; GREE online warranty claim form for equipment purchased online, Home Depot, or Lowes; GREE offers a 10-year extended warranty through GREE Select dealers, with registration.

Paid link

$3,949 / Checked Aug 2, 2026

$3,949 at HVACDirect

This system's warranty depends on licensed installation — get quotes from installers in your area.

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Error Codes
GREE four-way ceiling cassette indoor unit for R32 mini-split systems.

Image: GREE Comfort official All-Match 360 Cassette R32 product page

Data completeness: 100%
Last sourced
Aug 2, 2026

SplitAtlas score

7.7 / 10

Methodology
Cooling efficiencyAbove average

(23.0 SEER2) among 18k systems

Heating efficiencyBottom quartile

(9.2 HSPF2) among 18k systems

Cold-weather performanceAbove average

(5F certified capacity: 75% of the 47F rating; -22 F heating floor) among 18k systems

NoiseBelow average

(28 dBA indoor min / 59 dBA outdoor) among 18k systems

WarrantyBelow average

(5 yr parts / 7 yr compressor) across the catalogue

Feature setBelow average

(4 verified features) across the catalogue

Price-to-performanceBottom quartile

($3,949 median retail) among 18k systems

Documentation & partsBelow average

(6 manuals; spec sheet) across the catalogue

Not evaluated

  • Installation accessibility — not applicable (professional install)N/A

    professional install - DIY-accessibility not applicable

Key ratings

Rated cooling

18,000BTU/h[2]

Rated heating

18,000BTU/h[2]

Buyer review snapshot

Best for / skip if

Best for

  • High-efficiency shortlists; SEER2 is 23.

Install difficulty

Professional flared-line install
  • Electrical: 230V; MCA 23 A; breaker/fuse 25 A.
  • Line set: Flared line connections; precharged 25 ft; max 131 ft.

Alternatives

Availability and price context

  • Last seen at HVACDirect on Aug 2, 2026: $3,949.00. Open the listing for today's price. Warranty condition: Warranty claims for online/retail purchases must be completed by a contractor after an on-site diagnosis, with required documentation such as purchase receipt or installation invoice and data-plate photos.

Purchase channel policy

GREE publishes an online/retail warranty-claim path for equipment purchased online, Home Depot, or Lowes rather than treating online purchase as a warranty voidance.

Warranty impact
Online purchase changes the claim path: routine parts use GREE's online claim form, while compressor failures and refrigerant leaks require tech-support confirmation before the online claim.
Installation condition
Warranty claims for online/retail purchases must be completed by a contractor after an on-site diagnosis, with required documentation such as purchase receipt or installation invoice and data-plate photos.
Authorized channel
GREE distributor path for distributor purchases; GREE online warranty claim form for equipment purchased online, Home Depot, or Lowes; GREE offers a 10-year extended warranty through GREE Select dealers, with registration.

GREE online purchases have a manufacturer-published warranty path, but buyers should keep purchase and installation documents and use a licensed HVAC contractor for diagnosis and claims.

Compare online-purchase warranty rules by brand

Source: GREE Comfort: How Does the GREE Warranty Work? Coverage, Claims, and 10-Year Extension Guide; retrieved Aug 15, 2026.

Source date

Model data sourced
Aug 2, 2026
Page reviewed
Aug 2, 2026
Source-backed records
5
Newest source retrieved
Aug 2, 2026

Warranty tiers

Base
5 yr parts / 7 yr compressor - eligible residential system

The score uses Base. Additional published terms are shown for reference and not counted in the score.

Review methodology

Strengths

  • 23 SEER2 against 21 for the same head on a Vireo condenser - a genuine two-point gain.
  • 18,000 BTU of heating and cooling, rated to -22F.
  • Single ceiling head covering a space that would otherwise need two wall units.

Weaknesses

  • Deeper, heavier head; confirm ceiling cavity and structure before ordering.
  • Professional install with a condensate pump and a planned return path.
  • Still a value-tier brand - service quality will depend on the installing dealer.

Climate suitability

Minimum heating ambient
-22 F[1]
Certified heating at 5F
13,500 BTU/h[2]
Rated heating at 17F
15,500 BTU/h[2]
Rated heating at 47F
18,000 BTU/h[2]

Specifications

Show
Manufacturer
GREE
Brand
GREE
Product line
Sapphire R32
Model number
CAS18HP230V1R32AH indoor / SAP18HP230V1R32AO outdoor
Indoor unit model
CAS18HP230V1R32AH
Outdoor unit model
SAP18HP230V1R32AO
Number of zones
1
Max indoor units
not published
Rated cooling capacity
18,000 BTU/h[2]
Rated heating capacity
18,000 BTU/h[2]
Voltage
230 V[1]
MCA
23 A[1]
Maximum fuse or breaker size
25 A[1]
Breaker needed
not published
SEER2
23 SEER2[2]
EER2
10.75 EER2[2]
HSPF2 (Region 4)
9.2 HSPF2[2]
HSPF2 (Region 5)
not published
COP
not published
COP at 47F
not published
COP at 5F
not published
Minimum outdoor heating temperature
-22 F[1]
Minimum outdoor cooling temperature
-20 F[1]
Maximum outdoor temperature
122 F[1]
Indoor noise range
28-44 dB(A)[1]
Outdoor noise rating
59 dBA[1]
Indoor weight
37.5 lb[1]
Outdoor weight
94.8 lb[1]
Refrigerant
R-32[2]
Refrigerant charge
47.6 oz[1]
Manufacturer coverage
not published
Line-set size
1/4 in liquid / 1/2 in suction
Included line-set length
GREE professional single-zone cassette and ducted systems publish field-supplied flared line sizes and maximum/precharged piping data; no included consumer line set length is published.
Maximum line-set length
131 ft[1]
Max line set per indoor
not published
Maximum elevation difference
82 ft[1]
Max height between indoor units
not published
Wi-Fi support
not supported[1]
Energy Star status
Not ENERGY STAR certified[2]
AHRI certification number
215416024[2]
Warranty
Base: 5 yr parts / 7 yr compressor (eligible residential system). Score uses Base.. Standard residential GREE mini-split coverage is 5 years parts and 7 years compressor for eligible post-2021 systems.
Install path
Professional install
Retail price
$3,949.00
Available retailers
HVACDirect
Manual links
All Match 360 Cassette R32 service/installation manual, GREE All Match 360 Cassette R32 official product page, All Match 360 Cassette R32 owner manual, CAS18HP230V1R32AH / SAP18HP230V1R32AO All Match 360 Cassette R32 submittal, GREE DFS warranty statement for units installed after 2021-12-31
Specification sheet
CAS18HP230V1R32AH / SAP18HP230V1R32AO All Match 360 Cassette R32 submittal
Last sourced date
Aug 2, 2026

Retail purchase context

Dealer-installation warranty note

GREE online purchases have a manufacturer-published warranty path, but buyers should keep purchase and installation documents and use a licensed HVAC contractor for diagnosis and claims.

Installation condition: Warranty claims for online/retail purchases must be completed by a contractor after an on-site diagnosis, with required documentation such as purchase receipt or installation invoice and data-plate photos.

Dealer path: GREE distributor path for distributor purchases; GREE online warranty claim form for equipment purchased online, Home Depot, or Lowes; GREE offers a 10-year extended warranty through GREE Select dealers, with registration.

Some retailer links may earn us a commission at no extra cost; paid relationships never change scores or recommendations. Affiliate disclosure

Paid link

Dealer-installation warranty note

GREE online purchases have a manufacturer-published warranty path, but buyers should keep purchase and installation documents and use a licensed HVAC contractor for diagnosis and claims.

$3,949 at HVACDirect

$3,949 / Checked Aug 2, 2026

Electrical requirements

Show
Voltage
230 V[1]
Voltage range
208/230V[1]
Phase
1[1]
Frequency
60 Hz[1]
MCA
23 A[1]
Breaker needed
not published
Maximum breaker size
25 A[1]
Maximum fuse size
25 A[1]
Maximum cooling current
not published
Maximum heating current
not published
Manufacturer wire notes
Interconnecting wire size AWG 14 / 4; main power wire per local code.[1]

Installation considerations

Show
Liquid line
1/4 in[1]
Suction line
1/2 in[1]
Line connection type
Flared line connections[1]
Precharged length
25 ft[1]
Included line-set length
GREE professional single-zone cassette and ducted systems publish field-supplied flared line sizes and maximum/precharged piping data; no included consumer line set length is published.
Maximum line-set length
131 ft[1]
Max line set per indoor
not published
Max height between indoor units
not published
Indoor dimensions
22-7/16 x 22-7/16 x 10-7/16 in[1]
Outdoor dimensions
37-23/32 x 15-53/64 x 25-63/64 in[1]
Indoor weight
37.5 lb[1]
Outdoor weight
94.8 lb[1]
Drain size
not published

Related systems and guides

Frequently asked questions

Can I install the GREE Sapphire R32 18,000 BTU Four-Way Ceiling Cassette R-32 208/230V (CAS18HP230V1R32AH / SAP18HP230V1R32AO) myself, or do I need a pro?
GREE Sapphire R32 18,000 BTU Four-Way Ceiling Cassette R-32 208/230V (CAS18HP230V1R32AH / SAP18HP230V1R32AO) is built for professional installation: the line set must be flared, evacuated, and charged, which requires EPA-certified refrigerant handling. Installing it outside the manufacturer's requirements can void the warranty, so budget for a qualified HVAC installer.
Will the GREE Sapphire R32 18,000 BTU Four-Way Ceiling Cassette R-32 208/230V (CAS18HP230V1R32AH / SAP18HP230V1R32AO) keep heating in a cold winter?
The AHRI/ENERGY STAR certification lists 13,500 BTU/h of heating capacity at 5F. Rated heating operation extends down to -22 F. Certified heating efficiency is 9.2 HSPF2. Match those numbers against your climate's design temperature - in cold regions, output at 5F matters far more than the nameplate capacity measured at 47F.
What electrical circuit does the GREE Sapphire R32 18,000 BTU Four-Way Ceiling Cassette R-32 208/230V (CAS18HP230V1R32AH / SAP18HP230V1R32AO) need?
Published electrical requirements: 230 V voltage, 23 A minimum circuit ampacity, and 25 A maximum breaker or fuse sizing. Confirm the final circuit against the unit nameplate and local code with a licensed electrician.
How far can the outdoor unit be from the indoor head?
The published maximum line-set length is 131 ft. The outdoor unit's factory charge covers up to 25 ft of line; longer runs need added refrigerant. Measure the planned routing before ordering.
What warranty does the GREE Sapphire R32 18,000 BTU Four-Way Ceiling Cassette R-32 208/230V (CAS18HP230V1R32AH / SAP18HP230V1R32AO) carry?
The manufacturer publishes these warranty tiers: Base: 5 yr parts / 7 yr compressor (eligible residential system). Score uses Base.. Registration requirements and proof of qualified installation commonly affect coverage, so read the warranty terms before install day.

Data sources

Show
  1. GREE Comfort: CAS18HP230V1R32AH and SAP18HP230V1R32AO GREE All Match 360 Cassette R32 submittalSourced - manufacturer technical document

    Covers Frequency, Maximum breaker size, Maximum fuse size, Minimum circuit ampacity, Phase, Manufacturer wire notes and more

  2. Air-Conditioning, Heating, and Refrigeration Institute: AHRI Active form-factor row 215415559Sourced - AHRI directory

    Covers AHRI certification number, Rated cooling capacity, EER2, Energy Star status, Rated heating capacity, HSPF2 (Region 4) and more

  3. HVACDirect: HVACDirect exact product page SAP18HP230V1R32AO / CAS18HP230V1R32AHSourced - authorized distributor

    Covers Retail price

  4. GREE Comfort: GREE All Match 360 Cassette R32 official product pageSourced - manufacturer technical document

    Covers Form factor

  5. GREE Comfort: GREE DFS warranty statement for units installed after 2021-12-31Sourced - manufacturer technical document

    Covers Legacy compressor warranty value, Legacy warranty value, Base compressor warranty, Base warranty conditions, Base parts warranty, Warranty notes

Last updated

Aug 2, 2026