GE Appliances / GE Endure
GE Appliances GE Endure 12k R-454B 208/230V Mini-Split
The Endure 12k is the other efficiency flagship, a single-zone 12,000 BTU cooling heat pump on 230V with low-GWP R-454B. It posts an excellent 25 SEER2, a 12.5 EER2, and a top-of-line 11 HSPF2, and it is ENERGY STAR certified and cold-climate designated. Like the 9k, it holds full heat in the cold: 14,500 BTU at 47F and 14,500 BTU still at 5F.
1 zoneProfessional installCurrent
Refrigerant generation
R-454B - current-generation refrigerant
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Data completeness: 90%
- Last sourced
- Jul 27, 2026
SplitAtlas score
9.0 / 10
Cooling efficiencyTop quartile
(25.0 SEER2) among 12k systems
Heating efficiencyTop quartile
(11.0 HSPF2) among 12k systems
Cold-weather performanceTop 10%
(5F certified capacity: 100% of the 47F rating; -31 F heating floor) among 12k systems
NoiseBelow average
(25 dBA indoor min / 55 dBA outdoor) among 12k systems
WarrantyAbove average
(10 yr parts, no separate compressor term) across the catalogue
Feature setTop quartile
(6 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.
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Key ratings
Best-fit use cases
Ideal for a mid-size bedroom, primary living area, or home office in a cold climate where maximum year-round efficiency and strong deep-cold heating are the priority.
Buyer review snapshot
Best for / skip if
Best for
- Top efficiency shortlists; SEER2 is 25.
Install difficulty
Professional install
- Electrical: 230V; MCA 14 A; breaker/fuse 20 A.
- Line set: connection type not sourced; max 66 ft.
Availability and price context
This system needs a professional install, so its real price is an installed quote that depends on your home. We don't link to a listing for this exact model; get installation quotes to price it.
Source date
- Model data sourced
- Jul 27, 2026
- Page reviewed
- Jul 27, 2026
- Source-backed records
- 3
- Newest source retrieved
- Jul 27, 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.
Model context
- Structured ratings
- Certification: ENERGY STAR certified and AHRI cold-climate designated. Refrigerant: current low-GWP R-454B. Minimum heating ambient: -31 F.
Strengths
- Outstanding 25 SEER2 and a strong 11 HSPF2 for seasonal heating
- Maintains full 14,500 BTU heat output down to 5F
- Cold-climate designated and very quiet, to 25 dB(A) on sleep speed
Weaknesses
- Premium pricing position relative to the value Altitude line
- Requires a 230V circuit
Climate suitability
- Minimum heating ambient
- -31 F[1]
- Certified heating at 5F
- 14,500 BTU/h[2]
- Rated heating at 17F
- 8,700 BTU/h[2]
- Rated heating at 47F
- 14,500 BTU/h[2]
Specifications
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- Manufacturer
- GE Appliances
- Brand
- GE Appliances
- Product line
- GE Endure
- Model number
- GS12WP2BEA indoor / 1G12ED2BEA outdoor
- Indoor unit model
- GS12WP2BEA
- Outdoor unit model
- 1G12ED2BEA
- Number of zones
- 1
- Max indoor units
- not published
- Rated cooling capacity
- 12,000 BTU/h[2]
- Rated heating capacity
- 14,500 BTU/h[2]
- Voltage
- 230 V[1]
- MCA
- 14 A[1]
- Maximum fuse or breaker size
- 20 A[1]
- Breaker needed
- not published
- SEER2
- 25 SEER2[2]
- EER2
- 12.5 EER2[2]
- HSPF2 (Region 4)
- 11 HSPF2[2]
- HSPF2 (Region 5)
- not published
- COP
- not published
- COP at 47F
- not published
- COP at 5F
- 1.8 COP[2]
- Minimum outdoor heating temperature
- -31 F[1]
- Minimum outdoor cooling temperature
- not published
- Maximum outdoor temperature
- not published
- Indoor noise range
- 46/44/38/32/25 dB(A)[1]
- Outdoor noise rating
- 55 dBA[1]
- Indoor weight
- 24.492 lb[1]
- Outdoor weight
- 88.15 lb[1]
- Refrigerant
- R-454B[2]
- Refrigerant charge
- 50.1 oz[1]
- Manufacturer coverage
- not published
- Line-set size
- 1/4 in liquid / 3/8 in suction
- Included line-set length
- not published
- Maximum line-set length
- 66 ft[1]
- Max line set per indoor
- not published
- Maximum elevation difference
- 33 ft[1]
- Max height between indoor units
- not published
- Wi-Fi support
- not published
- Energy Star status
- ENERGY STAR certified[3]
- AHRI certification number
- 215876552[2]
- 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 directory record 215876552, ENERGY STAR exact check 215876552, 1G12ED2BEA / GS12WP2BEA GE installation instructions, 1G12ED2BEA GE Appliances Air & Water product page, GS12WP2BEA GE Appliances Air & Water product page, 1G12ED2BEA / GS12WP2BEA GE specification guide or submittal, 1G12ED2BEA / GS12WP2BEA GE warranty
- Specification sheet
- 1G12ED2BEA / GS12WP2BEA GE specification guide or submittal
- Last sourced date
- Jul 27, 2026
Installation considerations
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- Liquid line
- 1/4 in[1]
- Suction line
- 3/8 in[1]
- Line connection type
- not published
- Precharged length
- not published
- Included line-set length
- not published
- Maximum line-set length
- 66 ft[1]
- Max line set per indoor
- not published
- Max height between indoor units
- not published
- Indoor dimensions
- 36 in W x 12.25 in H x 8.375 in D[1]
- Outdoor dimensions
- 35.375 in W x 25.25 in H x 12 in D[1]
- Indoor weight
- 24.492 lb[1]
- Outdoor weight
- 88.15 lb[1]
- Drain size
- 5/8 in[1]
Related systems and guides
- More GE Appliances systems
- Fujitsu AIRSTAGE Orion XLTH+ 12k XLTH R-32 Mini-Split
- Goodman 20 12k R-32 208/230V Mini-Split
- GE Appliances GE Caliber 11.8k R-454B 208/230V Mini-Split
- GE Appliances GE Altitude 13.5k R-454B 208/230V Mini-Split
- Guide library
- Mini split buying guide
- Single-zone vs multi-zone mini splits
- Troubleshooting
- Do mini splits work in cold weather?
- The best 12,000 BTU mini splits of 2026
- The best cold-climate mini splits of 2026
- The best mini splits for heating of 2026
- Mini split heating capacity in the cold: what your unit actually delivers at 5F
- The mini split defrost cycle, explained
- The best DIY mini splits of 2026
- What "DIY mini split" actually means
- How to install a mini split (DIY overview)
- R-32 vs R-454B: the mini split refrigerant change explained
- Mini split not heating
- Mini split indoor unit freezing up
- Mini split remote not working
- Mini split outdoor unit not running
- Mini split making loud noise
- Line sets
- Line-set covers
Frequently asked questions
- Can I install the GE Appliances Endure 12,000 BTU R-454B 208/230V (GS12WP2BEA / 1G12ED2BEA) myself, or do I need a pro?
- GE Appliances Endure 12,000 BTU R-454B 208/230V (GS12WP2BEA / 1G12ED2BEA) 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 Endure 12,000 BTU R-454B 208/230V (GS12WP2BEA / 1G12ED2BEA) keep heating in a cold winter?
- The AHRI/ENERGY STAR certification lists 14,500 BTU/h of heating capacity at 5F. Rated heating operation extends down to -31 F. Certified heating efficiency is 11 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 Endure 12,000 BTU R-454B 208/230V (GS12WP2BEA / 1G12ED2BEA) need?
- Published electrical requirements: 230 V voltage, 14 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 66 ft. Measure the planned routing before ordering.
- What warranty does the GE Appliances Endure 12,000 BTU R-454B 208/230V (GS12WP2BEA / 1G12ED2BEA) 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
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- GE Appliances Air & Water: 1G12ED2BEA / GS12WP2BEA GE Appliances product pagesSourced - manufacturer product page
Covers Frequency, Maximum fuse size, Minimum circuit ampacity, Phase, Voltage, Voltage range and more
- Air-Conditioning, Heating, and Refrigeration Institute: AHRI Appendix M1 public detail for 1G12ED2BEA / GS12WP2BEASourced - AHRI directory
Covers AHRI certification number, performance_spec.cold_climate_designation, Rated cooling capacity, COP at 5F, EER2, Rated heating capacity and more
- ENERGY STAR: ENERGY STAR exact row check for AHRI 215876552Sourced - Energy Star listing
Covers Energy Star status
Last updated
Jul 27, 2026