Whynter ARC-12SD 12,000 BTU Dual Hose Portable Air Conditioner
Model ARC-12SD. Specification verified 8/9/2026.
Output per rated watt is a simple derived comparison from the published cooling output and maximum rated input. It is not a seasonal-efficiency score or a laboratory test result.
How the Specification Score works
Portable-v1.0 compares verified specifications against fixed portable-air-conditioner category benchmarks. The 100 points cover output per rated watt (35), maximum noise (25), weight (15), warranty (10) and verified features (15).
Capacity itself earns no points because the right BTU depends on your room. This is not an efficiency label, product review or laboratory test, and it does not include price, sponsorship or retailer placement.
CoolCompare does not sell this model or receive a retailer commission. Use the dated manufacturer record for specifications, then confirm the exact model, delivered price, seller, returns and warranty with any retailer you choose.
Open manufacturer sourceThe rated input for this model is 1100 W. Use your own electricity rate without assuming a purchase price.
Calculate running costUse the 6,936 BTU SACC figure for comparisons.
The model name also carries a 12,000 BTU ASHRAE figure. Portable AC labels can show both values; SACC is the more useful like-for-like DOE capacity basis because it accounts for portable-unit operating effects.
The manufacturer states coverage up to 400 sq ft. Treat that as a screening ceiling, not a promise: afternoon sun, tall ceilings, open doorways, glazing, people and heat-producing equipment can increase the room load.
Plan the exhaust route and electrical load before buying.
This is a room appliance rather than a whole-home central system. Confirm that the supplied window hardware fits the opening, the exhaust path stays short and unobstructed, condensate can be managed as instructed, and a grounded 115V receptacle is available.
Do not use an extension cord or modify a plug to force compatibility. Follow the exact installation manual and local safety requirements.
Compare a portable unit with the installed alternatives.
A portable AC can solve a seasonal single-room problem without permanent refrigerant work. For repeated multi-room cooling, lower indoor noise or heating as well as cooling, compare a mini-split or whole-home project before treating the appliance price as the complete decision.