SplitAtlas

GREE / Free Match ECO

GREE Free Match ECO 18k R-32 208/230V 2-Zone Mini-Split

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

The Gree Free Match ECO 2-Zone 18k (MUE18) is the budget entry in Gree's economy multi-zone, marketed as the "Multi ECO R32" line on greecomfort.com: two indoor heads on one 208/230V outdoor unit rated 18,000 BTU cooling and 18,000 BTU heating at 47F. It trades efficiency for first cost, carrying a certified nominal SEER2 of just 17, EER2 11.3, and HSPF2 8.5 - notably lower than the standard Free Match line's SEER2 21 and HSPF2 10.

It is ENERGY STAR certified and AHRI cold-climate designated, but dealer-quoted rather than stocked at retail. From Gree, the world's largest AC manufacturer; current R-32 refrigerant and professional installation required.

2 zonesProfessional installCurrent

Refrigerant generation

R-32 - current-generation refrigerant

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

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Error Codes
GREE Free Match ECO 2-Zone 18,000 BTU R-32 208/230V (MUE18HP230V1R32AO)

Image: GREE

Data completeness: 100%
Last sourced
Jul 28, 2026

SplitAtlas score

7.5 / 10

Methodology
Cooling efficiencyBottom quartile

(17.0 SEER2) among 18k systems

Heating efficiencyBottom quartile

(8.5 HSPF2) among 18k systems

Cold-weather performanceBelow average

(76.7% heat retained at 5F; 5 F heating floor) among 18k systems

WarrantyBelow average

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

Feature setTop quartile

(6 verified features) across the catalogue

Documentation & partsTop quartile

(8 manuals; spec sheet; parts channel) across the catalogue

Not evaluated

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

    professional install - DIY-accessibility not applicable

  • Price-to-value — not evaluatedN/A

    This is a professionally installed, quote-only system, so we can't score its price. Get an installed quote to compare real cost.

    Get a quote

Key ratings

Rated cooling

18,000BTU/hNon-Ducted Indoor Units[2]

Rated heating

18,000BTU/hNon-Ducted Indoor Units[2]

Buyer review snapshot

Best for / skip if

Best for

  • 2-zone projects in the 18k outdoor capacity class.

Skip if

  • Top-efficiency cooling is the priority; SEER2 is 17.

Install difficulty

Professional flared-line install
  • Electrical: 230V; MCA 14.5 A; breaker/fuse 20 A.
  • Line set: Flared line connections; precharged 66 ft; max 131 ft.
  • 2-zone condenser; indoor-head matching and branch layout are part of the job.

Alternatives

Availability and price context

We could not verify a current retail price for this model. We could not find this exact model in stock at a retailer we work with when we last checked on 2026-07-28.

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 Select dealer installation and registration for the 10-year extended warranty.

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
Jul 28, 2026
Page reviewed
Jul 28, 2026
Source-backed records
4
Newest source retrieved
Jul 28, 2026

Warranty tiers

Warranty: 5 years parts and 7 years compressor as standard.

Review methodology

Model context

Structured ratings
Certification: ENERGY STAR certified and AHRI cold-climate designated. Refrigerant: current low-GWP R-32. Minimum heating ambient: 5 F.
Installation context
Multi-zone low-load behavior depends on the indoor heads and how many zones are calling at once.

Strengths

  • Budget-focused first cost from Gree, the world's largest AC manufacturer.
  • Still ENERGY STAR certified and AHRI cold-climate designated despite the economy tier.
  • Two zones on current low-GWP R-32 refrigerant.
  • Certified nominal SEER2 17 / EER2 11.3 / HSPF2 8.5.

Weaknesses

  • Notably lower efficiency (SEER2 17 / HSPF2 8.5) - efficiency-minded buyers should step up to the standard Free Match at SEER2 21 / HSPF2 10.
  • Dealer-quoted, not stocked - you get a quote, not a buyable priced condenser.
  • Professional installation required - this is equipment, not a DIY self-install kit.

Climate suitability

Minimum heating ambient
5 F[1]
Rated heating at 5F
13,800 BTU/hNon-Ducted Indoor Units[2]
Rated heating at 17F
15,000 BTU/hNon-Ducted Indoor Units[2]
Rated heating at 47F
18,000 BTU/hNon-Ducted Indoor Units[2]

Specifications

Show
Manufacturer
GREE
Brand
GREE
Product line
Free Match ECO
Model number
MUE18HP230V1R32AO
Indoor unit model
Indoor heads are selected separately on a multi-zone system
Outdoor unit model
MUE18HP230V1R32AO
Number of zones
2
Max indoor units
2 units[1]
Rated cooling capacity
18,000 BTU/hNon-Ducted Indoor Units[2]
Rated heating capacity
18,000 BTU/hNon-Ducted Indoor Units[2]
Voltage
230 V[1]
MCA
14.5 A[1]
Maximum fuse or breaker size
20 A[1]
Breaker needed
not published
SEER2
17 SEER2Non-Ducted Indoor Units[2]
EER2
11.3 EER2Non-Ducted Indoor Units[2]
HSPF2 (Region 4)
8.5 HSPF2Non-Ducted Indoor Units[2]
HSPF2 (Region 5)
Certified per indoor-unit combination, not per outdoor unit
COP
not published
COP at 47F
not published
COP at 5F
2 COPNon-Ducted Indoor Units[2]
Minimum outdoor heating temperature
5 F[1]
Minimum outdoor cooling temperature
5 F[1]
Maximum outdoor temperature
118 F[1]
Indoor noise range
Indoor heads are selected separately on a multi-zone system
Outdoor noise rating
52 dBA[1]
Indoor weight
Indoor heads are selected separately on a multi-zone system
Outdoor weight
77.2 lb[1]
Refrigerant
R-32[2]
Refrigerant charge
31.752 oz[1]
Manufacturer coverage
not published
Line-set size
1/4 in x 2 liquid / 3/8 in x 2 suction
Included line-set length
Indoor heads are selected separately on a multi-zone system
Maximum line-set length
131 ft[1]
Max line set per indoor
66 ft[1]
Maximum elevation difference
49 ft[1]
Max height between indoor units
49.21 ft[1]
Wi-Fi support
Indoor heads are selected separately on a multi-zone system
Energy Star status
ENERGY STAR certified[3]
AHRI certification number
217962864Non-Ducted Indoor Units[2]
Warranty
Standard: 5 yr parts / 7 yr compressor (eligible residential system). 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
We could not find this exact model in stock at a retailer we work with when we last checked on 2026-07-28.
Available retailers
not published
Manual links
AHRI public detail 217962864, GREE Multi ECO R32 sales brochure, ENERGY STAR exact row 217962864, GREE Multi ECO R32 service manual, GREE Multi ECO R32 current official product page, HVACDirect exact-offer audit for MUE18HP230V1R32AO, MUE18HP230V1R32AO GREE Free Match ECO submittal, GREE DFS warranty statement for units installed after 2021-12-31
Specification sheet
MUE18HP230V1R32AO GREE Free Match ECO submittal
Last sourced date
Jul 28, 2026

Compatible indoor units

This is an outdoor unit. You choose its indoor heads separately - up to the maximum this condenser supports - and you can mix room sizes and styles across the zones. The models below are the heads this unit is documented to pair with.

  • Concealed ducteds

    9k, 12k, 18k

    Model numbers
    • 9k: DUC09HP230V1R32AH
    • 12k: DUC12HP230V1R32AH
    • 18k: DUC18HP230V1R32AH

  • Four-way ceiling cassettes

    9k, 12k, 18k

    Model numbers
    • 9k: CAS09HP230V1R32AH
    • 12k: CAS12HP230V1R32AH
    • 18k: CAS18HP230V1R32AH

  • One-way ceiling cassettes

    9k, 12k, 18k

    Model numbers
    • 9k: OWC09HP230V1R32AH
    • 12k: OWC12HP230V1R32AH
    • 18k: OWC18HP230V1R32AH

  • Wall-mounteds

    9k, 12k, 18k

    Model numbers
    • 9k: ENV09HP230V1R32AH
    • 9k: SAP09HP230V1R32AH
    • 12k: ENV12HP230V1R32AH
    • 12k: SAP12HP230V1R32AH
    • 18k: ENV18HP230V1R32AH
    • 18k: LIV18HP230V1R32AH
    • 18k: SAP18HP230V1R32AH

Sizing note: do not just add up the rooms. Multi-zone condensers have a maximum total connected capacity, and connecting more head capacity than the unit is rated for is a common installer mistake that hurts efficiency and comfort. Match total head capacity to the condenser's rating.

Parts and filters

Fits GREE Free Match ECO 2-Zone 18,000 BTU R-32 208/230V (MUE18HP230V1R32AO). Part numbers and fit notes identify compatibility only; no manufacturer endorsement is implied.

compressor-service-identification

Compressor model FTz-SM151AXBD

Fits
GREE Free Match ECO 2-Zone 18,000 BTU R-32 208/230V (MUE18HP230V1R32AO)
Fit note
Fits MUE18HP230V1R32AO. The ECO service manual publishes the compressor model identifier but not an orderable compressor-and-fittings part number; source the replacement by outdoor model and serial through GREE/distributor parts support.
Source
GREE Multi ECO R32 Service Manual, MUE18HP230V1R32AO specification table, page p. 5 (Compressor Model - FTz-SM151AXBD)

outdoor-fan-motor

Outdoor fan motor

Fits
GREE Free Match ECO 2-Zone 18,000 BTU R-32 208/230V (MUE18HP230V1R32AO)
Fit note
Fits MUE18HP230V1R32AO. The ECO service manual publishes fan-motor output for this outdoor unit but not an orderable motor part number; source by outdoor model and serial through GREE/distributor parts support.
Source
GREE Multi ECO R32 Service Manual, MUE18HP230V1R32AO specification table, page p. 5 (Fan Motor Power Output W 30)
Replacement Parts & Filters

Electrical requirements

Show
Voltage
230 V[1]
Voltage range
208/230V[1]
Phase
1[1]
Frequency
60 Hz[1]
MCA
14.5 A[1]
Breaker needed
not published
Maximum breaker size
20 A[1]
Maximum fuse size
20 A[1]
Maximum cooling current
not published
Maximum heating current
not published
Manufacturer wire notes
not published

Installation considerations

Show
Liquid line
1/4 in x 2[1]
Suction line
3/8 in x 2[1]
Line connection type
Flared line connections[1]
Precharged length
66 ft[1]
Included line-set length
Indoor heads are selected separately on a multi-zone system
Maximum line-set length
131 ft[1]
Max line set per indoor
66 ft[1]
Max height between indoor units
49.21 ft[1]
Indoor dimensions
Indoor heads are selected separately on a multi-zone system
Outdoor dimensions
32-23/64 x 21-21/32 x 13-55/64 in[1]
Indoor weight
Indoor heads are selected separately on a multi-zone system
Outdoor weight
77.2 lb[1]
Drain size
not published

Related systems and guides

Frequently asked questions

Can I install the GREE Free Match ECO 2-Zone 18,000 BTU R-32 208/230V (MUE18HP230V1R32AO) myself, or do I need a pro?
GREE Free Match ECO 2-Zone 18,000 BTU R-32 208/230V (MUE18HP230V1R32AO) 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 Free Match ECO 2-Zone 18,000 BTU R-32 208/230V (MUE18HP230V1R32AO) keep heating in a cold winter?
The manufacturer publishes 13,800 BTU/h of heating output at 5F. Rated heating operation extends down to 5 F. Certified heating efficiency is 8.5 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 Free Match ECO 2-Zone 18,000 BTU R-32 208/230V (MUE18HP230V1R32AO) need?
Published electrical requirements: 230 V voltage, 14.5 A minimum circuit ampacity, and 20 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, and the included line set comes pre-charged for 66 ft. Longer runs than the included set allows typically mean added refrigerant and a pro visit, so measure the planned routing before ordering.
What warranty does the GREE Free Match ECO 2-Zone 18,000 BTU R-32 208/230V (MUE18HP230V1R32AO) carry?
The manufacturer publishes these warranty tiers: Standard: 5 yr parts / 7 yr compressor (eligible residential system). Registration requirements and proof of qualified installation commonly affect coverage, so read the warranty terms before install day.

Data sources

Show
  1. GREE Comfort: GREE Free Match ECO official technical documents for MUE18HP230V1R32AOSourced - manufacturer technical document

    Covers Frequency, electrical_spec.guaranteed_voltage_range, Maximum breaker size, Maximum fuse size, Minimum circuit ampacity, Phase and more

  2. Air-Conditioning, Heating, and Refrigeration Institute: AHRI public detail 217962864Sourced - AHRI directory

    Covers AHRI certification number, performance_spec.cold_climate_designation, Rated cooling capacity, COP at 5F, EER2, Rated heating capacity and more

  3. U.S. Environmental Protection Agency ENERGY STAR: ENERGY STAR exact row check for AHRI 217962864Sourced - Energy Star listing

    Covers Energy Star status

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

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

Last updated

Jul 28, 2026