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Blueridge / Blueridge XS3 High Efficiency

Blueridge XS3 High Efficiency 18k R-454B 208/230V Mini-Split

Certified capacity
18,000 BTU/h[3]
SEER2
23.5 SEER2[3]
Heating floor
-13 F[1]
Voltage
230 V[1]
Install path
Professional install

Scaling up to 18,000 BTU, this High Efficiency head pairs 23.5 SEER2 and 12.7 EER2 with a 10.8 HSPF2 on R-454B. It's ENERGY STAR certified and cold-climate designated, delivering 18,000 BTU at 47F, 15,000 BTU at 17F, and 12,800 BTU at 5F. It's a premium-efficiency choice for a larger cold-climate space.

1 zoneProfessional installCurrent

Refrigerant generation

R-454B - current-generation refrigerant

Paid link

$1,669 / Fresh price - checked Jul 24, 2026

Check price at Alpine Home Air

Need this installed?

Get installation quotes
Error Codes
Data completeness: 98%
Last sourced
Aug 29, 2026

SplitAtlas score

8.5 / 10

Methodology
Cooling efficiencyTop quartile

(23.5 SEER2) among 18k systems

Heating efficiencyAbove average

(10.8 HSPF2) among 18k systems

Cold-weather performanceBelow average

(71.1% heat retained at 5F; -13 F heating floor) among 18k systems

NoiseAbove average

(20 dBA indoor min / 58 dBA outdoor) among 18k systems

WarrantyBelow average

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

Feature setTop quartile

(6 verified features) across the catalogue

Price-to-performanceAbove average

($1,669 median retail) among 18k systems

Documentation & partsBelow average

(6 manuals; spec sheet) across the catalogue

Not evaluated

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

    professional install - DIY-accessibility not applicable

Key ratings

Rated cooling

18,000BTU/h[3]

Rated heating

18,000BTU/h[3]

Buyer review snapshot

Best for / skip if

Best for

  • High-efficiency shortlists; SEER2 is 23.5.

Install difficulty

Professional flared-line install
  • Electrical: 230V; MCA 18 A; breaker/fuse 20 A.
  • Line set: Flared line connections; precharged 25 ft; max 98.4 ft.

Alternatives

Availability and price context

  • Verified current price: $1,669.00 at Alpine Home Air; availability Not published; checked Jul 24, 2026.

Source date

Model data sourced
Aug 29, 2026
Page reviewed
Jul 24, 2026
Source-backed records
5
Newest source retrieved
Aug 29, 2026

Warranty tiers

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

Review methodology

Strengths

  • Strong 23.5 SEER2 with cold-climate certification for efficient, reliable winter heat.
  • Holds 15,000 BTU at 17F, excellent retention for an 18K head.
  • ENERGY STAR certified on low-GWP R-454B refrigerant.

Weaknesses

  • Output declines to 12,800 BTU at 5F, so extreme-cold sizing deserves attention.
  • Blueridge's support footprint is smaller than premium brands, and this XS unit warrants a pro install.

Climate suitability

Minimum heating ambient
-13 F[1]
Rated heating at 5F
12,800 BTU/h[3]
Rated heating at 17F
15,000 BTU/h[3]
Rated heating at 47F
18,000 BTU/h[3]

Specifications

Show
Manufacturer
Blueridge
Brand
Blueridge
Product line
Blueridge XS3 High Efficiency
Model number
BXAFA18WM0 indoor / BXS3A18SC0 outdoor
Indoor unit model
BXAFA18WM0
Outdoor unit model
BXS3A18SC0
Number of zones
1
Max indoor units
not published
Rated cooling capacity
18,000 BTU/h[3]
Rated heating capacity
18,000 BTU/h[3]
Voltage
230 V[1]
MCA
18 A[1]
Maximum fuse or breaker size
20 A[1]
Breaker needed
not published
SEER2
23.5 SEER2[3]
EER2
12.7 EER2[3]
HSPF2 (Region 4)
10.8 HSPF2[3]
HSPF2 (Region 5)
not published
COP
not published
COP at 47F
not published
COP at 5F
2.1 COP[3]
Minimum outdoor heating temperature
-13 F[1]
Minimum outdoor cooling temperature
-13 F[1]
Maximum outdoor temperature
122 F[1]
Indoor noise range
20 / 28 / 39 / 45 / 49 dB(A)[1]
Outdoor noise rating
58 dBA[1]
Indoor weight
27.34 lb[1]
Outdoor weight
92.59 lb[1]
Refrigerant
R-454B[3]
Refrigerant charge
not published
Manufacturer coverage
not published
Line-set size
1/4 in liquid / 1/2 in suction
Included line-set length
Alpine Blueridge system pages can be paired with different line-set/accessory selections; the AHRI-certified indoor/outdoor pair has no single included line-set length.
Maximum line-set length
98.4 ft[1]
Max line set per indoor
not published
Maximum elevation difference
65.6 ft[1]
Max height between indoor units
not published
Wi-Fi support
supported[1]
Energy Star status
ENERGY STAR certified[4]
AHRI certification number
216997524[3]
Warranty
Standard: 5 yr parts / 7 yr compressor (limited warranty terms). 5-year parts / 7-year compressor limited warranty
Install path
Professional install
Retail price
$1,669.00
Available retailers
Alpine Home Air
Manual links
AHRI public directory record 216997524, ENERGY STAR exact check 216997524, Blueridge BXS3A18SC0-18WM Alpine product page capture, Blueridge Blueridge XS3 High Efficiency product page line-set specifications, HVACDirect exact search outcome BXS3A18SC0-18WM, Blueridge BXS3A18SC0-18WM Alpine product-page specification grid
Specification sheet
Blueridge BXS3A18SC0-18WM Alpine product-page specification grid
Last sourced date
Aug 29, 2026

Retail purchase context

Some retailer links may earn us a commission at no extra cost; paid relationships never change scores or recommendations. Affiliate disclosure

Paid link

Check price at Alpine Home Air

$1,669 / Fresh price - checked Jul 24, 2026

Electrical requirements

Show
Voltage
230 V[1]
Voltage range
208/230V[1]
Phase
1[1]
Frequency
not published
MCA
18 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
Flared line connections[2]
Precharged length
25 ft[1]
Included line-set length
Alpine Blueridge system pages can be paired with different line-set/accessory selections; the AHRI-certified indoor/outdoor pair has no single included line-set length.
Maximum line-set length
98.4 ft[1]
Max line set per indoor
not published
Max height between indoor units
not published
Indoor dimensions
40.04 x 12.56 x 9.76 in[1]
Outdoor dimensions
35.04 x 26.5 x 13.46 in[1]
Indoor weight
27.34 lb[1]
Outdoor weight
92.59 lb[1]
Drain size
not published

Related systems and guides

Frequently asked questions

Can I install the Blueridge XS3 High Efficiency 18,000 BTU R-454B 208/230V (BXAFA18WM0 / BXS3A18SC0) myself, or do I need a pro?
Blueridge XS3 High Efficiency 18,000 BTU R-454B 208/230V (BXAFA18WM0 / BXS3A18SC0) 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 Blueridge XS3 High Efficiency 18,000 BTU R-454B 208/230V (BXAFA18WM0 / BXS3A18SC0) keep heating in a cold winter?
The manufacturer publishes 12,800 BTU/h of heating output at 5F. Rated heating operation extends down to -13 F. Certified heating efficiency is 10.8 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 Blueridge XS3 High Efficiency 18,000 BTU R-454B 208/230V (BXAFA18WM0 / BXS3A18SC0) need?
Published electrical requirements: 230 V voltage, 18 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 98.4 ft, and the included line set comes pre-charged for 25 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 Blueridge XS3 High Efficiency 18,000 BTU R-454B 208/230V (BXAFA18WM0 / BXS3A18SC0) carry?
The manufacturer publishes these warranty tiers: Standard: 5 yr parts / 7 yr compressor (limited warranty terms). Registration requirements and proof of qualified installation commonly affect coverage, so read the warranty terms before install day.

Data sources

Show
  1. Alpine Home Air Products: Blueridge BXS6A09UC0-9WM Alpine product specification gridSourced - manufacturer technical document

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

  2. Blueridge / Alpine Home Air Products: Flared line set and professional startup evidenceSourced - manufacturer technical document

    Covers Line connection type

  3. AHRI certificate #216997524 - search the AHRI DirectorySourced - 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 exact row check for AHRI 216997533Sourced - Energy Star listing

    Covers Energy Star status

  5. Blueridge / Alpine Home Air Products: Flared line set and professional startup evidenceSourced - manufacturer technical document

    Covers system.diy_status, system.installation_type, system.sales_intent

Last updated

Jul 24, 2026