SplitAtlas

Senville / AURA

Senville AURA 18k 230V Mini-Split

Certified capacity
18,000 BTU/h[2]
SEER2
21.4 SEER2[2]
Heating floor
-22 F[1]
Voltage
208/230V[1]
Install path
Professional install

The AURA 18k brings the line's cold-climate credentials to larger rooms: a published -22F heating floor - the deepest in our 18k class - at a typically lower price than its MRCOOL DIY rival, though its certified efficiency (SEER2 21.4 / HSPF2 11.0) trails the MRCOOL's slightly. Professional installation and a 230V circuit are the cost of entry.

1 zoneProfessional installCurrent

Refrigerant generation

R-454B - current-generation refrigerant

Paid link

$1,600 / Checked Jul 18, 2026

$1,600 at Senville

Need this installed?

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Error Codes
Senville AURA 18k mini-split heat pump indoor wall unit and outdoor condenser

Image: Senville

Data completeness: 80%
Last sourced
Jul 18, 2026

SplitAtlas score

8.3 / 10

Methodology
Cooling efficiencyAbove average

(21.4 SEER2) among 18k systems

Heating efficiencyAbove average

(11.0 HSPF2) among 18k systems

Cold-weather performanceAbove average

(-22 F heating floor) among 18k systems

NoiseBelow average

(27 dBA indoor min / 59 dBA outdoor) among 18k systems

WarrantyAbove average

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

Feature setBottom quartile

(2 verified features) across the catalogue

Price-to-performanceAbove average

($1,600 median retail) among 18k systems

Documentation & partsBottom quartile

(3 manuals; parts channel) 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[2]

Rated heating

18,000BTU/h[2]

Buyer review snapshot

Install difficulty

Professional install
  • Electrical: 208/230V; MCA 16 A; breaker/fuse 20 A.

Alternatives

Availability and price context

  • Last seen at Senville on Jul 18, 2026: $1,599.99. Open the listing for today's price.

Source date

Model data sourced
Jul 18, 2026
Page reviewed
Jul 18, 2026
Source-backed records
2
Newest source retrieved
Jul 18, 2026

Warranty tiers

Base
5 yr parts / 10 yr compressor - professional installation required

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

Review methodology

Strengths

  • Published -22F minimum heating ambient - the deepest heating floor among our published 18k systems.
  • Typically the lower equipment price at 18k, with certified efficiency only slightly behind the DIY alternative.
  • Wi-Fi control included.

Weaknesses

  • Professional install required (flare, evacuate, verify) with warranty tied to qualified installation.
  • Rated heating output at 5F is not published for this size - the -22F floor tells you it runs, not how much heat it delivers there.
  • Senville marketing efficiency figures for this size have run above the AHRI certificate; compare on the certified number.

Climate suitability

Minimum heating ambient
-22 F[1]
Certified heating at 5F
not published
Rated heating at 17F
not published
Rated heating at 47F
not published

Specifications

Show
Manufacturer
Senville
Brand
Senville
Product line
AURA
Model number
SENA-18HF-IGG indoor / SENA-18HF-OG outdoor
Indoor unit model
SENA-18HF-IGG
Outdoor unit model
SENA-18HF-OG
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
208/230V[1]
MCA
16 A[1]
Maximum fuse or breaker size
20 A[1]
Breaker needed
not published
SEER2
21.4 SEER2[2]
EER2
12.5 EER2[2]
HSPF2 (Region 4)
11 HSPF2[2]
HSPF2 (Region 5)
9.2 HSPF2[1]
COP
not published
COP at 47F
not published
COP at 5F
not published
Minimum outdoor heating temperature
-22 F[1]
Minimum outdoor cooling temperature
not published
Maximum outdoor temperature
not published
Indoor noise range
49-27 dB(A)[1]
Outdoor noise rating
59 dBA[1]
Indoor weight
33.51 lb[1]
Outdoor weight
101.41 lb[1]
Refrigerant
R-454B[1]
Refrigerant charge
50.91 oz[1]
Manufacturer coverage
not published
Line-set size
not published
Included line-set length
not published
Maximum line-set length
not published
Max line set per indoor
not published
Maximum elevation difference
not published
Max height between indoor units
not published
Wi-Fi support
supported[1]
Energy Star status
ENERGY STAR certified[1]
AHRI certification number
215735297[2]
Warranty
Base: 5 yr parts / 10 yr compressor (professional installation required). Score uses Base.. 10-year compressor and 5-year parts warranty; professional installation required.
Install path
Professional install
Retail price
$1,599.99
Available retailers
Senville
Manual links
Senville AURA R454B Installation Manual (IGG/OG), Senville AURA R454B Owner Manual (IGG/OG), Senville AURA R454B Service Manual (IAA/OG)
Specification sheet
not published
Last sourced date
Jul 18, 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

$1,600 at Senville

$1,600 / Checked Jul 18, 2026

Parts and filters

Fits Senville AURA 18k 230V (SENA-18HF). Part numbers and fit notes identify compatibility only; no manufacturer endorsement is implied.

filter-optional

High density filter (optional accessory)

Fits
Senville AURA 18k 230V (SENA-18HF)
Filter care
Washable. Wash with warm, soapy water, rinse, and shade-dry when airflow becomes noisy or as needed. Senville gives condition-based cleaning guidance instead of a calendar interval. No replacement interval or condition is published for this reusable filter.
Fit note
Fits SENA-18HF-IGG / SENA-18HF-OG. Senville catalogs the high-density filter as an AURA optional accessory, but I did not find a current IGG-family store SKU. Use Senville parts/support with the exact model and serial; do not substitute older IZ/IQ/IAA filter pages without confirmation.
Source
Senville Product Catalog, Features AURA - Optional Features, page p. 3 (HIGH DENSITY FILTER)

air-cleaning-accessory

Plasma ionizer (optional accessory)

Fits
Senville AURA 18k 230V (SENA-18HF)
Fit note
Fits SENA-18HF-IGG / SENA-18HF-OG. Senville catalogs a plasma ionizer option for AURA, but does not publish a model-specific orderable SKU for the current IGG wall units. Confirm through Senville support before ordering.
Source
Senville Product Catalog, Features AURA - Optional Features, page p. 3 (PLASMA IONIZER)

wired-control

Wired wall controller (optional accessory)

Fits
Senville AURA 18k 230V (SENA-18HF)
Fit note
Fits SENA-18HF-IGG / SENA-18HF-OG. Senville lists wired control as an AURA option, but WRD-RMT23 is only for concealed-duct and ceiling-cassette models from 2022 or earlier. Senville does not publish a wired-controller part number for this IGG wall unit.
Source
Senville Product Catalog, Features AURA - Optional Features, page p. 3 (WIRED CONTROL)

remote-control

Remote control (IAA / IGG)

Fits
Senville AURA 18k 230V (SENA-18HF)
OEM part number
PAR753
Fit note
Fits SENA-18HF-IGG / SENA-18HF-OG. Senville sells the IAA/IGG replacement remote directly at https://senville.com/remote-control-iaa-igg/. HVACDirect did not expose an exact Senville remote page, so no affiliate offer is attached.
Source
Senville Remote Control (IAA - IGG), Product details, page product page (PAR753)

smart-wifi-usb-kit

Senville Smart WiFi USB Kit for Mini Split, Works with Alexa

Fits
Senville AURA 18k 230V (SENA-18HF)
OEM part number
SEN20-ACK1T
Fit note
Fits SENA-18HF-IGG / SENA-18HF-OG. Senville publishes SEN20-ACK1T for compatible post-2019 indoor units and sells it directly at https://senville.com/senville-smart-wifi-usb-kit-for-mini-split-works-with-alexa/. HVACDirect did not expose an exact Senville Wi-Fi kit page, so no affiliate offer is attached.
Source
Senville Smart WiFi USB Kit for Mini Split, Works with Alexa, Product details, page product page (SEN20-ACK1T)

line-set-installation-kit

25 ft flared line-set installation kit - 1/4 x 1/2

Fits
Senville AURA 18k 230V (SENA-18HF)
OEM part number
PJX-2-75E
Fit note
Fits SENA-18HF-IGG / SENA-18HF-OG. Use this size for 18k Senville indoor units or matching multizone ports. Senville sells the PJX-2-75E line set directly; HVACDirect was verified as a live exact-dimension 25 ft install-kit page on 2026-08-01. First-party path: https://senville.com/25-ft-insulated-line-set-1-4-and-1-2/.
Source
Senville 25 Ft. Insulated Line Set - 1/4 and 1/2, Technical Specifications, page product page (SKU | PJX-2-75E)

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Paid link

Check price at HVACDirect
Find this model's filterReplacement Parts & Filters

Electrical requirements

Show
Voltage
not published
Voltage range
208/230V[1]
Phase
1[1]
Frequency
60 Hz[1]
MCA
16 A[1]
Breaker needed
not published
Maximum breaker size
not published
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
not published
Suction line
not published
Line connection type
not published
Precharged length
not published
Included line-set length
not published
Maximum line-set length
not published
Max line set per indoor
not published
Max height between indoor units
not published
Indoor dimensions
40.55 x 8.46 x 13.39 in[1]
Outdoor dimensions
33.27 x 14.29 x 27.64 in[1]
Indoor weight
33.51 lb[1]
Outdoor weight
101.41 lb[1]
Drain size
not published

Comparable models

Gree Vireo vs Senville AURA (18,000 BTU)

Side-by-side comparison

MRCOOL DIY Hyper Heat vs Senville AURA (18,000 BTU, cold-climate)

Side-by-side comparison

MRCOOL DIY vs Senville AURA (18,000 BTU) - The Garage & Great-Room Size

Side-by-side comparison

Related systems and guides

Frequently asked questions

Can I install the Senville AURA 18k 230V (SENA-18HF) myself, or do I need a pro?
Senville AURA 18k 230V (SENA-18HF) 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 18k 230V (SENA-18HF) keep heating in a cold winter?
Rated heating operation extends down to -22 F. Certified heating efficiency is 11 HSPF2. Match that published heating floor against your climate's design temperature - below the low-ambient rating, output can fall off or the system can pause to protect itself.
What electrical circuit does the Senville AURA 18k 230V (SENA-18HF) need?
Published electrical requirements: 208/230V voltage, 16 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.
What warranty does the Senville AURA 18k 230V (SENA-18HF) carry?
The manufacturer publishes these warranty tiers: Base: 5 yr parts / 10 yr compressor (professional installation required). Score uses Base.. Registration requirements and proof of qualified installation commonly affect coverage, so read the warranty terms before install day.

Data sources

Show
  1. Senville: Senville SENA-18HF product pageSourced - manufacturer product page

    Covers Frequency, Maximum fuse size, Minimum circuit ampacity, Phase, Voltage range, Indoor dimensions and more

  2. AHRI: AHRI Certificate of Product Ratings ref 215735297 (parsed 2026-07-18)Sourced - AHRI certificate

    Covers AHRI certification number, Rated cooling capacity, EER2, Rated heating capacity, HSPF2 (Region 4), SEER2

Last updated

Jul 18, 2026