The dual-hose design of this Whynter ARC-12SDH 12,000 BTU portable air conditioner and 11,000 BTU heater enables high-speed cooling, so you can quickly achieve a comfortable temperature. Digital controls and a remote simplify operation.
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The installation was easy. I have windows that slide sideways, so the two hoses for in and out are one above the other. The first time I turned it on, about four hours later the water tank was full. That surprised me because I thought that the tank would slowly empty itself. So I got 1/4" vinyl tubing, and fed the water to the outside. Quite easy. The unit is about as loud as expected, and you get used to it. We play piano in the same room, it works fine.
What's great about it: It cools nicely. Having separate hoses for outside air inflow and exhaust is a good idea
What's not so great: The water collection tank fills up quite quickly, so I put a tube in to drain