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Toshiba Carrier / Toshiba Carrier 26 High Wall

Toshiba Carrier 26 High Wall 18k R-454B 208/230V Mini-Split

Certified capacity
18,000 BTU/h[2]
SEER2
23.8 SEER2[2]
Heating floor
-13 F[1]
Voltage
230 V[1]
Install path
Professional install

The Toshiba Carrier RAV high-wall 18k is a premium 1.5-ton single-zone head on 230V and low-GWP R-454B. It rates 23.8 SEER2, 12.0 EER2, and 10.4 HSPF2, and it is ENERGY STAR Most Efficient and cold-climate designated. Heating delivers 18,000 BTU at 47F and holds 14,500 BTU at 5F.

1 zoneProfessional installCurrent

Refrigerant generation

R-454B - current-generation refrigerant

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Error Codes
Toshiba Carrier 26 High Wall 18,000 BTU R-454B 208/230V (RAV-HB181KRTP-UL / RAV-BP181AT2P-UL)

Image: DCNE

Data completeness: 100%
Last sourced
Jul 27, 2026

SplitAtlas score

8.6 / 10

Methodology
Cooling efficiencyTop quartile

(23.8 SEER2) among 18k systems

Heating efficiencyAbove average

(10.4 HSPF2) among 18k systems

Cold-weather performanceAbove average

(80.6% heat retained at 5F; -13 F heating floor) among 18k systems

NoiseBottom quartile

(32 dBA indoor min / 52 dBA outdoor) among 18k systems

WarrantyAbove average

(10 yr parts / 10 yr compressor) across the catalogue

Feature setTop quartile

(6 verified features) across the catalogue

Documentation & partsTop quartile

(6 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

18,000BTU/h[2]

Rated heating

18,000BTU/h[2]

Best-fit use cases

Well suited to a large bedroom or living room in a cold climate where you want premium efficiency and rebate-friendly ENERGY STAR Most Efficient certification.

Buyer review snapshot

Best for / skip if

Best for

  • High-efficiency shortlists; SEER2 is 23.8.

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.

Alternatives

Availability and price context

We could not verify a current retail price for this model. We could not find a published consumer price for this model when we last checked on 2026-07-27.

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

Warranty: 10 years parts and no separate compressor term published if registration; complete Toshiba Carrier warranty terms apply.

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

  • High 23.8 SEER2 with ENERGY STAR Most Efficient and cold-climate designation
  • Strong deep-cold output, 14,500 BTU at 5F
  • Current low-GWP R-454B and premium Toshiba-Carrier build

Weaknesses

  • Premium price; 230V professional install only
  • Full-load EER2 of 12.0 is strong but well below the exceptional 12k

Climate suitability

Minimum heating ambient
-13 F[1]
Rated heating at 5F
14,500 BTU/h[2]
Rated heating at 17F
12,500 BTU/h[2]
Rated heating at 47F
18,000 BTU/h[2]

Specifications

Show
Manufacturer
Toshiba Carrier
Brand
Toshiba Carrier
Product line
Toshiba Carrier 26 High Wall
Model number
RAV-HB181KRTP-UL indoor / RAV-BP181AT2P-UL outdoor
Indoor unit model
RAV-HB181KRTP-UL
Outdoor unit model
RAV-BP181AT2P-UL
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
14 A[1]
Maximum fuse or breaker size
20 A[1]
Breaker needed
not published
SEER2
23.8 SEER2[2]
EER2
12 EER2[2]
HSPF2 (Region 4)
10.4 HSPF2[2]
HSPF2 (Region 5)
not published
COP
not published
COP at 47F
not published
COP at 5F
2.2 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
41 / 39 / 37 / 35 / 32 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
216415458[2]
Warranty
Best case: 10 yr parts / no separate compressor term (registration; complete Toshiba Carrier warranty terms apply). 10-year parts limited warranty with registration; complete Toshiba Carrier warranty terms apply.
Install path
Professional install
Retail price
We could not find a published consumer price for this model when we last checked on 2026-07-27.
Available retailers
not published
Manual links
AHRI public directory record 216415458, ENERGY STAR exact check 216415458, Toshiba Carrier RAVBKR2 high-wall installation manual, Toshiba Carrier RAV high-wall owner manual, Retail exact search RAV-BP181AT2P-UL / RAV-HB181KRTP-UL, 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 18,000 BTU R-454B 208/230V (RAV-HB181KRTP-UL / RAV-BP181AT2P-UL) myself, or do I need a pro?
Toshiba Carrier 26 High Wall 18,000 BTU R-454B 208/230V (RAV-HB181KRTP-UL / RAV-BP181AT2P-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 18,000 BTU R-454B 208/230V (RAV-HB181KRTP-UL / RAV-BP181AT2P-UL) keep heating in a cold winter?
The manufacturer publishes 14,500 BTU/h of heating output at 5F. Rated heating operation extends down to -13 F. Certified heating efficiency is 10.4 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 18,000 BTU R-454B 208/230V (RAV-HB181KRTP-UL / RAV-BP181AT2P-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, and the included line set comes pre-charged for 65.58 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 Toshiba Carrier 26 High Wall 18,000 BTU R-454B 208/230V (RAV-HB181KRTP-UL / RAV-BP181AT2P-UL) carry?
The manufacturer publishes these warranty tiers: Best case: 10 yr parts / no separate compressor term (registration; complete Toshiba Carrier warranty terms apply). 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-BP181AT2P-UL / RAV-HB181KRTP-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 216415458Sourced - 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 Best-case compressor warranty status, Best-case warranty conditions, Best-case parts warranty, Legacy warranty value, Warranty notes

Last updated

Jul 27, 2026