Whynter
NEX ARC-1230WN
The Whynter NEX ARC-1230WN is a dual-hose R-32 inverter portable rated 14,000 BTU ASHRAE / 12,000 BTU SACC with a certified CEER of 13.8 and Wi-Fi control, for rooms up to 550 sq ft by its SACC (Whynter states 600).
$729
Live price at SylvanePrice checked Oct 27, 2026
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Price history at Sylvane
Tracked price is up since Jul 20, 2026
Based on 13 prices we have recorded since Jul 20, 2026, not a market average.
Will it cool your room?
This has more cooling than your 250 sq ft room needs. It can short-cycle and leave the air cool but humid.
The portable units we list are not ENERGY STAR certified, and portables are rated on a different (SACC) basis that is not comparable to the nameplate-BTU estimate the window figure uses, so there is no honest dollar figure to show here. As a category, portables (single-hose models especially) usually run less efficiently than a comparable window unit.
At a glance
Best for large rooms up to 550 sq ft that want a quiet dual-hose inverter portable.
Performance
- Cooling capacity
- 14,000 BTU · 12,000 BTU SACC
- Power while cooling
- 1,293 W (11.9 A at 115 V), about $0.24 an hour
- Heating capacity
- Cooling only
- Room coverage
- up to 550 sq ft by its DOE rating (Whynter states 600 sq ft)
- Energy Star
- No
- CEER
- 13.8
- Annual energy (cooling)
- Not published
Noise, size & features
- Model number
- ARC-1230WN
- Indoor noise
- 42 dB(A)about as loud as a quiet library
- Outdoor noise
- Not published
- Indoor unit
- 32.5 in H x 19.5 in W x 16.75 in D
- Outdoor unit
- None
- Refrigerant
- R-32
- Wi-Fi / app
- Yes
- Outdoor unit needed
- No
- Power supply
- 115 V
- Warranty
- 3-Year Limited Compressor Warranty, 1-Year Limited Parts Warranty
Supply voltage, cooling power, cooling current, refrigerant and warranty are from Sylvane's published specifications for this exact configuration, checked Oct 18, 2026.
Power while cooling: From the maximum cooling draw its retailer lists for this exact model. An hour's cost is at that draw and the US average electricity price of 18.44¢/kWh (U.S. Energy Information Administration, Electric Power Monthly Table 5.6.A (residential average, May 2026)). The compressor cycles once the room is cool, so most hours cost less.
What is good
- Top-tier portable efficiency: certified CEER 13.8 on DOE's portable test, EER 10.8
- Dual hose-in-hose inverter cooling for rooms up to 550 sq ft by its 12,000 BTU SACC
- Quiet on low (under 42.5 dB) with smart Wi-Fi (Alexa, Google, app)
What to watch
- Not ENERGY STAR (portables are excluded from the program)
- Heavy (about 77 lbs) and tall
Installation & the rules that apply
This is a portable monobloc. The most regulation-light option by far. No EPA Section 608 certified technician is needed because the refrigerant circuit is factory-sealed and never opened, no building or mechanical permit is triggered since nothing is fixed to the structure, and a landlord has little ground to refuse a unit that leaves no permanent alteration. The real constraints are your lease or HOA rules on how the window kit looks from outside, and noise to neighbours.
Plug and play
R-32
Common questions about the Whynter NEX ARC-1230WN
- How loud is the Whynter NEX ARC-1230WN?
- 42 dB(A) indoors, about as loud as a quiet library.
- How energy-efficient is the Whynter NEX ARC-1230WN?
- Its efficiency rating is CEER 13.8.
- How many watts does the Whynter NEX ARC-1230WN use?
- It draws 1,293 watts (11.9 amps at 115 V) while cooling at full power, per its retailer's specification for this exact model. At the US average electricity price that is about $0.24 an hour; once the room is cool the compressor cycles, so most hours cost less.
- What size room does the Whynter NEX ARC-1230WN cool?
- A room up to 550 sq ft. Whynter rates it for 600 sq ft, the room its 14,000 BTU box rating would suit, but a portable is sized by its SACC, which counts the heat its exhaust hose and casing put back into the room, and ENERGY STAR's sizing chart gives the 12,000 BTU (SACC) the Department of Energy certifies it at a room up to 550 sq ft.
- Do I need a professional to install the Whynter NEX ARC-1230WN?
- No. It is a portable monobloc you can fit yourself, no professional needed. No permission needed.
Compare the Whynter NEX ARC-1230WN head-to-head
Is a portable even the right type?
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