Whynter
NEX ARC-1230WNH (cool + heat)
The heat-capable Whynter NEX ARC-1230WNH matches the ARC-1230WN dual-hose platform (14,000 BTU ASHRAE / 12,000 BTU SACC) and posts an even higher CEER of 14.2, adding electric heat for year-round comfort up to 600 sq ft.
$649
List price14,000 BTU ASHRAE / 12,000 BTU SACC (DOE) cooling plus heat mode. EER 10.8. Max power 1,298 W / 11.9 A. Noise less than 42.5 dB low to 56.5 dB high. 87 pints/day dehumidification. Net weight 77.25 lbs.
No live retailer for this exact model right now.
Last listed at Sylvane for $759 on Jul 20, 2026. We have not been able to confirm it since.
Performance
- Cooling capacity
- 14,000 BTU · 4.1 kW
- Heating capacity
- Yes
- Room coverage
- up to 600 sq ft
- Energy Star
- No
- CEER
- 14.2
- Annual energy (cooling)
- Not published
Noise, size & features
- Model number
- ARC-1230WNH
- Indoor noise
- 42 dB(A)about as loud as a quiet library
- Outdoor noise
- Not published
- Indoor unit
What is good
- Highest CEER in the lineup (14.2) plus a heat mode for year-round use
- Dual hose-in-hose inverter cooling for rooms up to 600 sq ft
- Smart Wi-Fi with Alexa, Google and app control
What to watch
- Not ENERGY STAR; premium price
- Heavy (about 77 lbs)
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-1230WNH (cool + heat)
- How loud is the Whynter NEX ARC-1230WNH (cool + heat)?
- 42 dB(A) indoors, about as loud as a quiet library.
- How energy-efficient is the Whynter NEX ARC-1230WNH (cool + heat)?
- Its efficiency rating is CEER 14.2.
- What size room does the Whynter NEX ARC-1230WNH (cool + heat) cool?
- It is rated to cool a room up to 600 sq ft (14,000 BTU · 4.1 kW).
- Do I need a professional to install the Whynter NEX ARC-1230WNH (cool + heat)?
- No. It is a portable monobloc you can fit yourself, no professional needed. No permission needed.
- Does the Whynter NEX ARC-1230WNH (cool + heat) heat as well as cool?
- Yes. It also heats.
Is a portable even the right type?
Compare portables against the other types on price, noise, efficiency and install.
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