Senville / AURA
Senville AURA 16.7k One-Way Cassette R-454B 208/230V Mini-Split
The Senville AURA 18k-class one-way cassette certifies at 16,700 BTU cooling, 20,000 BTU heating at 47F, and 17,500 BTU at 5F, making it the high-output one-way choice rather than the highest-efficiency one.
1 zoneProfessional installCurrent
Refrigerant generation
R-454B - current-generation refrigerant
Paid link
$1,800 / Fresh price - checked Aug 2, 2026
Need this installed?
Get installation quotesData completeness: 83%
- Last sourced
- Aug 2, 2026
SplitAtlas score
not yet rated - data incomplete
- no scoring run is available
Key ratings
Buyer review snapshot
Install difficulty
Professional install
- Electrical: 230V; breaker/fuse 15 A.
- Line set: connection type not sourced; precharged 25 ft; included 16 ft; max 98.4 ft.
Availability and price context
- Verified current price: $1,799.99 at Senville; availability in_stock; checked Aug 2, 2026.
Source date
- Model data sourced
- Aug 2, 2026
- Page reviewed
- Aug 2, 2026
- Source-backed records
- 5
- Newest source retrieved
- Aug 2, 2026
Warranty tiers
Warranty: 5 years parts and 10 years compressor as standard.
Model context
- Structured ratings
- Certification: ENERGY STAR certified and AHRI cold-climate designated. Refrigerant: current low-GWP R-454B. Minimum heating ambient: -22 F.
Strengths
- Highest capacity one-way Senville cassette captured in this batch.
- 12.2 HSPF2 is strong for the capacity class.
- 5F output remains close to the rated cooling capacity.
- Direct Senville price is much lower than most premium ceiling-recessed systems.
Weaknesses
- The AHRI cooling number is 16,700 BTU, so it should not be treated like a full 18k cooling system.
- One-way source pages omit important noise, weight, MCA, and cooling-ambient details.
- A long 50-inch cassette is a real ceiling coordination item.
Climate suitability
- Minimum heating ambient
- -22 F[1]
- Rated heating at 5F
- 17,500 BTU/h[4]
- Rated heating at 17F
- 14,500 BTU/h[4]
- Rated heating at 47F
- 20,000 BTU/h[4]
Specifications
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- Manufacturer
- Senville
- Brand
- Senville
- Product line
- AURA
- Model number
- SENA-18HF-1WCG indoor / SENA-18HF-OG outdoor
- Indoor unit model
- SENA-18HF-1WCG
- Outdoor unit model
- SENA-18HF-OG
- Number of zones
- 1
- Max indoor units
- not published
- Rated cooling capacity
- 16,700 BTU/h[4]
- Rated heating capacity
- 20,000 BTU/h[4]
- Voltage
- 230 V[1]
- MCA
- not published
- Maximum fuse or breaker size
- 15 A[2]
- Breaker needed
- not published
- SEER2
- 20.6 SEER2[4]
- EER2
- 12.5 EER2[4]
- HSPF2 (Region 4)
- 12.2 HSPF2[4]
- HSPF2 (Region 5)
- not published
- COP
- not published
- COP at 47F
- not published
- COP at 5F
- 1.89 COP[4]
- Minimum outdoor heating temperature
- -22 F[1]
- Minimum outdoor cooling temperature
- not published
- Maximum outdoor temperature
- not published
- Indoor noise range
- not published
- Outdoor noise rating
- not published
- Indoor weight
- not published
- Outdoor weight
- not published
- Refrigerant
- R-454B[4]
- Refrigerant charge
- not published
- Manufacturer coverage
- not published
- Line-set size
- 1/4 in liquid / 1/2 in suction
- Included line-set length
- 16 ft[1]
- Maximum line-set length
- 98.4 ft[3]
- Max line set per indoor
- not published
- Maximum elevation difference
- 65.6 ft[3]
- Max height between indoor units
- not published
- Wi-Fi support
- supported[1]
- Energy Star status
- ENERGY STAR certified[5]
- AHRI certification number
- 216623595[4]
- Warranty
- Standard: 5 yr parts / 10 yr compressor (published warranty terms). 10-year compressor / 5-year parts
- Install path
- Professional install
- Retail price
- $1,799.99
- Available retailers
- Senville
- Manual links
- AHRI Active row 216623595, Senville one-way cassette installation manual, Senville 18000 BTU 1-Way Cassette Mini Split Air Conditioner with Heat Pump – SENA-18HF-1WC official product page, Senville one-way cassette service manual, Senville 18000 BTU 1-Way Cassette Mini Split Air Conditioner with Heat Pump – SENA-18HF-1WC official product-page specification table
- Specification sheet
- Senville 18000 BTU 1-Way Cassette Mini Split Air Conditioner with Heat Pump – SENA-18HF-1WC official product-page specification table
- Last sourced date
- Aug 2, 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 Senville
$1,800 / Fresh price - checked Aug 2, 2026
Electrical requirements
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Installation considerations
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- Liquid line
- 1/4 in[1]
- Suction line
- 1/2 in[1]
- Line connection type
- not published
- Precharged length
- 25 ft[1]
- Included line-set length
- 16 ft[1]
- Maximum line-set length
- 98.4 ft[3]
- Max line set per indoor
- not published
- Max height between indoor units
- not published
- Indoor dimensions
- 50.31 x 13.19 x 8.98 in[1]
- Outdoor dimensions
- 35.04 x 13.46 x 26.50 in[1]
- Indoor weight
- not published
- Outdoor weight
- not published
- Drain size
- not published
Related systems and guides
- More Senville systems
- Cooper & Hunter One-Way Cassette 16.7k 230V
- Cooper & Hunter 230 V option
- Senville 16k model
- Senville 17k model
- Guide library
- Mini split buying guide
- Single-zone vs multi-zone mini splits
- Troubleshooting
- Do mini splits work in cold weather?
- Senville mini split review: is Senville any good?
- 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
- Senville mini split not cooling
- Mini split not heating
- Mini split indoor unit freezing up
- Mini split making loud noise
- Mini split condensate pump problems
- Line sets
- Line-set covers
Frequently asked questions
- Can I install the Senville AURA One-Way Cassette 16,700 BTU R-454B 208/230V (SENA-18HF-1WCG / SENA-18HF-OG) myself, or do I need a pro?
- Senville AURA One-Way Cassette 16,700 BTU R-454B 208/230V (SENA-18HF-1WCG / SENA-18HF-OG) 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 Senville AURA One-Way Cassette 16,700 BTU R-454B 208/230V (SENA-18HF-1WCG / SENA-18HF-OG) keep heating in a cold winter?
- The manufacturer publishes 17,500 BTU/h of heating output at 5F. Rated heating operation extends down to -22 F. Certified heating efficiency is 12.2 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 Senville AURA One-Way Cassette 16,700 BTU R-454B 208/230V (SENA-18HF-1WCG / SENA-18HF-OG) need?
- Published electrical requirements: 230 V voltage, not published minimum circuit ampacity, and 15 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 Senville AURA One-Way Cassette 16,700 BTU R-454B 208/230V (SENA-18HF-1WCG / SENA-18HF-OG) carry?
- The manufacturer publishes these warranty tiers: Standard: 5 yr parts / 10 yr compressor (published warranty terms). Registration requirements and proof of qualified installation commonly affect coverage, so read the warranty terms before install day.
Data sources
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- Senville: Senville 18000 BTU 1-Way Cassette Mini Split Air Conditioner with Heat Pump – SENA-18HF-1WCSourced - manufacturer product page
Covers Frequency, Phase, Voltage, Voltage range, Included line-set length, Indoor dimensions and more
- Senville: Senville one-way cassette service manualSourced - manufacturer technical document
Covers Maximum fuse size
- Senville: Senville one-way cassette installation manualSourced - manufacturer technical document
Covers Maximum elevation difference, Maximum line-set length
- Air-Conditioning, Heating, and Refrigeration Institute: AHRI Active form-factor row 216623595Sourced - 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 218010994Sourced - Energy Star listing
Covers Energy Star status
Last updated
Aug 2, 2026