SplitAtlas

Toshiba Carrier / Toshiba Carrier 26 High Wall

Toshiba Carrier 26 High Wall 12k R-454B 208/230V Mini-Split

Certified capacity
12,000 BTU/h[2]
SEER2
25.2 SEER2[2]
Heating floor
-13 F[1]
Voltage
230 V[1]
Install path
Professional install

Toshiba Carrier is the joint venture between Toshiba and Carrier, and this RAV high-wall 12k is the efficiency standout of its premium single-zone line - a 12,000 BTU heat pump on 230V running low-GWP R-454B. It posts a remarkable 25.2 SEER2 with an exceptional 15.7 EER2 and an 11.0 HSPF2, and it is ENERGY STAR Most Efficient and AHRI cold-climate designated. Heating runs 12,000 BTU at 47F and holds 10,300 BTU at 5F.

1 zoneProfessional installCurrent

Refrigerant generation

R-454B - current-generation refrigerant

Need this installed?

Get installation quotes
Error Codes
Toshiba Carrier 26 High Wall 12,000 BTU R-454B 208/230V (RAV-HB121KRTP-UL / RAV-BP121AT2P-UL)

Image: DCNE

Data completeness: 100%
Last sourced
Jul 27, 2026

SplitAtlas score

9.0 / 10

Methodology
Cooling efficiencyTop 10%

(25.2 SEER2) among 12k systems

Heating efficiencyTop quartile

(11.0 HSPF2) among 12k systems

Cold-weather performanceAbove average

(5F certified capacity: 85.8% of the 47F rating; -13 F heating floor) among 12k systems

NoiseBelow average

(28 dBA indoor min / 52 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 & partsTop quartile

(7 manuals; spec sheet; 49 error-code rows) 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

12,000BTU/h[2]

Rated heating

12,000BTU/h[2]

Best-fit use cases

The pick for a bedroom, office, or main room in a cold climate where you want a highly efficient single-zone head and premium build quality, especially where utility rebates tied to ENERGY STAR Most Efficient apply.

Buyer review snapshot

Best for / skip if

Best for

  • Top efficiency shortlists; SEER2 is 25.2.

Install difficulty

Professional install
  • Electrical: 230V; MCA 14 A; breaker/fuse 20 A.
  • Line set: connection type not sourced; precharged 65.58 ft; max 164.08 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
4
Newest source retrieved
Jul 27, 2026

Warranty tiers

Registered
10 yr parts / no separate compressor term - registration; complete Toshiba Carrier warranty terms apply

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

Review methodology

Model context

Structured ratings
Certification: ENERGY STAR certified and AHRI cold-climate designated. Refrigerant: current low-GWP R-454B. Minimum heating ambient: -13 F.

Strengths

  • Exceptional efficiency: 25.2 SEER2 and a standout 15.7 EER2 at full load
  • ENERGY STAR Most Efficient and cold-climate designated, with 10,300 BTU of heat at 5F
  • Premium Toshiba-Carrier inverter engineering on current low-GWP R-454B

Weaknesses

  • Premium pricing to match the high efficiency
  • 230V, professionally installed through Carrier's channel - no DIY path

Climate suitability

Minimum heating ambient
-13 F[1]
Certified heating at 5F
10,300 BTU/h[2]
Rated heating at 17F
8,500 BTU/h[2]
Rated heating at 47F
12,000 BTU/h[2]

Specifications

Show
Manufacturer
Toshiba Carrier
Brand
Toshiba Carrier
Product line
Toshiba Carrier 26 High Wall
Model number
RAV-HB121KRTP-UL indoor / RAV-BP121AT2P-UL outdoor
Indoor unit model
RAV-HB121KRTP-UL
Outdoor unit model
RAV-BP121AT2P-UL
Number of zones
1
Max indoor units
not published
Rated cooling capacity
12,000 BTU/h[2]
Rated heating capacity
12,000 BTU/h[2]
Voltage
230 V[1]
MCA
14 A[1]
Maximum fuse or breaker size
20 A[1]
Breaker needed
not published
SEER2
25.2 SEER2[2]
EER2
15.7 EER2[2]
HSPF2 (Region 4)
11 HSPF2[2]
HSPF2 (Region 5)
not published
COP
not published
COP at 47F
not published
COP at 5F
2.4 COP[2]
Minimum outdoor heating temperature
-13 F[1]
Minimum outdoor cooling temperature
5 F[1]
Maximum outdoor temperature
115 F[1]
Indoor noise range
37 / 36 / 33 / 32 / 28 dB(A)[1]
Outdoor noise rating
52 dBA[1]
Indoor weight
33.1 lb[1]
Outdoor weight
82 lb[1]
Refrigerant
R-454B[2]
Refrigerant charge
52.96 oz[1]
Manufacturer coverage
not published
Line-set size
1/4 in liquid / 1/2 in suction
Included line-set length
Professional installations use separately selected line sets
Maximum line-set length
164.08 ft[1]
Max line set per indoor
not published
Maximum elevation difference
98.42 ft[1]
Max height between indoor units
not published
Wi-Fi support
No published built-in Wi-Fi specification
Energy Star status
ENERGY STAR certified[3]
AHRI certification number
216415456[2]
Warranty
Registered: 10 yr parts / no separate compressor term (registration; complete Toshiba Carrier warranty terms apply). Score uses Registered.. 10-year parts limited warranty with registration; complete Toshiba Carrier warranty terms apply.
Install path
Professional install
Retail price
Installed quote only
Available retailers
not published
Manual links
AHRI public directory record 216415456, ENERGY STAR exact check 216415456, Toshiba Carrier RAVBKR2 high-wall installation manual, Toshiba Carrier RAV high-wall owner manual, Toshiba Carrier RAV High Wall 12K-36K Installation Manual, Section 14 Troubleshooting, Error codes and parts to be checked, Toshiba Carrier RAVBAT2/RAVBKR2 engineering data book
Specification sheet
Toshiba Carrier RAVBAT2/RAVBKR2 engineering data book
Last sourced date
Jul 27, 2026

Electrical requirements

Show
Voltage
230 V[1]
Voltage range
208/230V[1]
Phase
1[1]
Frequency
60 Hz[1]
MCA
14 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[1]
Suction line
1/2 in[1]
Line connection type
not published
Precharged length
65.58 ft[1]
Included line-set length
Professional installations use separately selected line sets
Maximum line-set length
164.08 ft[1]
Max line set per indoor
not published
Max height between indoor units
not published
Indoor dimensions
41.3 x 9.8 x 12.6 in[1]
Outdoor dimensions
30.7 x 11.4 x 21.7 in[1]
Indoor weight
33.1 lb[1]
Outdoor weight
82 lb[1]
Drain size
0.9[1]

Related systems and guides

Frequently asked questions

Can I install the Toshiba Carrier 26 High Wall 12,000 BTU R-454B 208/230V (RAV-HB121KRTP-UL / RAV-BP121AT2P-UL) myself, or do I need a pro?
Toshiba Carrier 26 High Wall 12,000 BTU R-454B 208/230V (RAV-HB121KRTP-UL / RAV-BP121AT2P-UL) 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 Toshiba Carrier 26 High Wall 12,000 BTU R-454B 208/230V (RAV-HB121KRTP-UL / RAV-BP121AT2P-UL) keep heating in a cold winter?
The AHRI/ENERGY STAR certification lists 10,300 BTU/h of heating capacity at 5F. Rated heating operation extends down to -13 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 Toshiba Carrier 26 High Wall 12,000 BTU R-454B 208/230V (RAV-HB121KRTP-UL / RAV-BP121AT2P-UL) 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 164.08 ft. The outdoor unit's factory charge covers up to 65.58 ft of line; longer runs need added refrigerant. Measure the planned routing before ordering.
What warranty does the Toshiba Carrier 26 High Wall 12,000 BTU R-454B 208/230V (RAV-HB121KRTP-UL / RAV-BP121AT2P-UL) carry?
The manufacturer publishes these warranty tiers: Registered: 10 yr parts / no separate compressor term (registration; complete Toshiba Carrier warranty terms apply). 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. Carrier Corporation / Toshiba Carrier: Toshiba Carrier RAVBAT2/RAVBKR2 engineering data for RAV-BP361AT2P-UL / RAV-HB361KRTP-ULSourced - manufacturer technical document

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

  2. Air-Conditioning, Heating, and Refrigeration Institute: AHRI Appendix M1 public detail for RAV-BP121AT2P-UL / RAV-HB121KRTP-ULSourced - 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 AHRI-reference check for 216415456Sourced - Energy Star listing

    Covers Energy Star status

  4. Carrier Corporation / Toshiba Carrier: Toshiba Carrier 26 Light Commercial Heat Pump RAVBAT2 product pageSourced - manufacturer product page

    Covers Legacy warranty value, Registered compressor warranty status, Registered warranty conditions, Registered parts warranty, Warranty notes

Last updated

Jul 27, 2026