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GE Appliances / Altitude Multi

GE Appliances Altitude Multi 18k R-454B 208/230V 2-Zone Mini-Split

Certified capacity
18,000 BTU/h[3]
SEER2
22.5 SEER2[3]
Heating floor
-4 F[2]
Voltage
230 V[1]
Install path
Professional install

The GE Altitude Multi 2-zone runs two rooms from one 208/230V outdoor unit on current R-454B refrigerant. Its certified nominal SEER2 is 22.5 (EER2 12, HSPF2 10.5), and it is ENERGY STAR certified and AHRI cold-climate designated.

As with any multi-zone, that certified figure is the all-non-ducted nominal; your real efficiency depends on the heads you attach. Heating is rated at 21000 BTU at 47F, 15000 at 17F, and 16600 at 5F - the certified 5F output actually sits above the 17F rating, reflecting a cold-climate compressor tuned to the 5F point.

GE Appliances is a Haier-owned brand and this is the same hardware as the Haier FlexFit Multi; it is installed by professional dealers and priced by quote.

2 zonesProfessional installCurrent

Refrigerant generation

R-454B - current-generation refrigerant

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Error Codes
GE Appliances Altitude Multi 2-Zone 18,000 BTU R-454B 208/230V (2G18AD2BEA) mini-split heat pump outdoor condenser

Image: GE Appliances

Data completeness: 97%
Last sourced
Jul 29, 2026

SplitAtlas score

8.5 / 10

Methodology
Cooling efficiencyAbove average

(22.5 SEER2) among 18k systems

Heating efficiencyAbove average

(10.5 HSPF2) among 18k systems

Cold-weather performanceBelow average

(5F certified capacity: 79% of the 47F rating; -4 F heating floor) among 18k systems

WarrantyAbove average

(10 yr parts, no separate compressor term) across the catalogue

Feature setTop quartile

(7 verified features) across the catalogue

Documentation & partsBelow average

(8 manuals; spec sheet) 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[3]

Rated heating

21,000BTU/hNon-Ducted Indoor Units[3]

Buyer review snapshot

Best for / skip if

Best for

  • 2-zone projects in the 18k outdoor capacity class.
  • High-efficiency shortlists; SEER2 is 22.5.

Install difficulty

Complex professional install
  • Electrical: 230V; MCA 16 A; breaker/fuse 25 A.
  • Line set: connection type not sourced; precharged 66 ft; max 98 ft.
  • 2-zone condenser; indoor-head matching and branch layout are part of the job.

Alternatives

Availability and price context

This GE Appliances multi-zone system is sold through dealers, so its price comes as an installed quote that depends on your home. Get installation quotes to price it.

Source date

Model data sourced
Jul 29, 2026
Page reviewed
Jul 29, 2026
Source-backed records
4
Newest source retrieved
Jul 29, 2026

Warranty tiers

Base
5 yr parts / no separate compressor term - limited parts warranty
Registered
10 yr parts / no separate compressor term - registered limited parts warranty

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

Review methodology

Model context

Install path
This is professional-install equipment; price it with an installed quote.
Structured ratings
Certification: ENERGY STAR certified and ENERGY STAR cold-climate certified. Refrigerant: current low-GWP R-454B. Minimum heating ambient: -4 F.

Strengths

  • Two zones from one outdoor unit and one 208/230V circuit.
  • Certified nominal SEER2 22.5 / EER2 12 / HSPF2 10.5, ENERGY STAR certified.
  • AHRI cold-climate designated, with certified 5F heat (16600 BTU) above its own 17F rating.
  • Current R-454B refrigerant backed by GE Appliances' national parts and service network.

Weaknesses

  • Two-zone total capacity is shared; size to the condenser, not two full rooms.
  • Part-load efficiency drops when only one zone is calling, and pricing is dealer-quoted only.

Climate suitability

Minimum heating ambient
-4 F[2]
Certified heating at 5F
16,600 BTU/hNon-Ducted Indoor Units[3]
Rated heating at 17F
15,000 BTU/hNon-Ducted Indoor Units[3]
Rated heating at 47F
21,000 BTU/hNon-Ducted Indoor Units[3]

Specifications

Show
Manufacturer
GE Appliances
Brand
GE Appliances
Product line
Altitude Multi
Model number
2G18AD2BEA
Indoor unit model
Depends on the indoor units you choose
Outdoor unit model
2G18AD2BEA
Number of zones
2
Max indoor units
2 units[1]
Rated cooling capacity
18,000 BTU/hNon-Ducted Indoor Units[3]
Rated heating capacity
21,000 BTU/hNon-Ducted Indoor Units[3]
Voltage
230 V[1]
MCA
16 A[1]
Maximum fuse or breaker size
25 A[1]
Breaker needed
not published
SEER2
22.5 SEER2Non-Ducted Indoor Units[3]
EER2
12 EER2Non-Ducted Indoor Units[3]
HSPF2 (Region 4)
10.5 HSPF2Non-Ducted Indoor Units[3]
HSPF2 (Region 5)
Varies by indoor-unit combination
COP
not published
COP at 47F
not published
COP at 5F
1.8 COPNon-Ducted Indoor Units[3]
Minimum outdoor heating temperature
-4 F[2]
Minimum outdoor cooling temperature
14 F[2]
Maximum outdoor temperature
115 F[2]
Indoor noise range
Depends on the indoor units you choose
Outdoor noise rating
52 dBA[1]
Indoor weight
Depends on the indoor units you choose
Outdoor weight
112 lb[1]
Refrigerant
R-454BNon-Ducted Indoor Units[3]
Refrigerant charge
53 oz[1]
Manufacturer coverage
not published
Line-set size
1/4 in liquid / 3/8 in suction
Included line-set length
Depends on the indoor units you choose
Maximum line-set length
98 ft[1]
Max line set per indoor
65 ft[2]
Maximum elevation difference
50 ft[1]
Max height between indoor units
not published
Wi-Fi support
Depends on the indoor units you choose
Energy Star status
ENERGY STAR certified[4]
AHRI certification number
217009761Non-Ducted Indoor Units[3]
Warranty
Base: 5 yr parts / no separate compressor term (limited parts warranty); Registered: 10 yr parts / no separate compressor term (registered limited parts warranty). Score uses Registered.. 5-year limited parts warranty; 10-year registered limited parts warranty with registration.
Install path
Professional install
Retail price
Installed quote only
Available retailers
not published
Manual links
AHRI public detail for 2G18AD2BEA, ENERGY STAR exact AHRI rows for 2G18AD2BEA, 2G18AD2BEA GE Appliances installation instructions, 2G18AD2BEA GE Appliances Air & Water product page, 2G18AD2BEA GE Appliances specification guide, 2G18AD2BEA GE Appliances Altitude Multi submittal, 2G18AD2BEA GE Appliances warranty
Specification sheet
2G18AD2BEA GE Appliances specification guide
Last sourced date
Jul 29, 2026

Electrical requirements

Show
Voltage
230 V[1]
Voltage range
208/230V[1]
Phase
1[1]
Frequency
60 Hz[1]
MCA
16 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
not published

Installation considerations

Show
Liquid line
1/4 in[1]
Suction line
3/8 in[2]
Line connection type
not published
Precharged length
66 ft[2]
Included line-set length
Depends on the indoor units you choose
Maximum line-set length
98 ft[1]
Max line set per indoor
65 ft[2]
Max height between indoor units
not published
Indoor dimensions
Depends on the indoor units you choose
Outdoor dimensions
36 x 14.5 x 27.5625 in[1]
Indoor weight
Depends on the indoor units you choose
Outdoor weight
112 lb[1]
Drain size
not published

Related systems and guides

Frequently asked questions

Can I install the GE Appliances Altitude Multi 2-Zone 18,000 BTU R-454B 208/230V (2G18AD2BEA) myself, or do I need a pro?
GE Appliances Altitude Multi 2-Zone 18,000 BTU R-454B 208/230V (2G18AD2BEA) 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 GE Appliances Altitude Multi 2-Zone 18,000 BTU R-454B 208/230V (2G18AD2BEA) keep heating in a cold winter?
The AHRI/ENERGY STAR certification lists 16,600 BTU/h of heating capacity at 5F. Rated heating operation extends down to -4 F. Certified heating efficiency is 10.5 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 GE Appliances Altitude Multi 2-Zone 18,000 BTU R-454B 208/230V (2G18AD2BEA) need?
Published electrical requirements: 230 V voltage, 16 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 from the outdoor unit to one indoor head is 65 ft. The combined piping limit across all heads is 98 ft. The outdoor unit's factory charge covers up to 66 ft of line; longer runs need added refrigerant. Measure the planned routing before ordering.
What warranty does the GE Appliances Altitude Multi 2-Zone 18,000 BTU R-454B 208/230V (2G18AD2BEA) carry?
The manufacturer publishes these warranty tiers: Base: 5 yr parts / no separate compressor term (limited parts warranty); Registered: 10 yr parts / no separate compressor term (registered limited parts warranty). Score uses Registered.. Registration requirements and proof of qualified installation commonly affect coverage, so read the warranty terms before install day.

Data sources

Show
  1. GE Appliances Air & Water: 2G18AD2BEA GE Appliances Altitude Multi product pageSourced - manufacturer product page

    Covers Frequency, Maximum breaker size, Maximum fuse size, Minimum circuit ampacity, Phase, Voltage and more

  2. GE Appliances Air & Water: 2G18AD2BEA GE Appliances Altitude Multi submittalSourced - manufacturer technical document

    Covers electrical_spec.guaranteed_voltage_range, Precharged length, Suction line size, Max line set per indoor, Minimum outdoor cooling temperature, Minimum outdoor heating temperature and more

  3. Air-Conditioning, Heating, and Refrigeration Institute: AHRI Appendix M1 public detail for 2G18AD2BEASourced - AHRI directory

    Covers AHRI certification number, Rated cooling capacity, COP at 5F, EER2, Rated heating capacity, HSPF2 (Region 4) and more

  4. ENERGY STAR: ENERGY STAR product database exact AHRI rows for 2G18AD2BEASourced - secondary source

    Covers performance_spec.energy_star_cold_climate, Energy Star status

Last updated

Jul 29, 2026