Whynter 12,000 BTU Portable Air Conditioner with Dehumidifier, Heat and Remote-ARC-12SDH - The Home Depot
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Model # ARC-12SDH

Internet # 202555718

12,000 BTU Portable Air Conditioner with Dehumidifier, Heat and Remote

Whynter 12,000 BTU Portable Air Conditioner with Dehumidifier, Heat and Remote

This item has been discontinued.
The Home Depot no longer carries this specific product.

$469.98 / each
  • Cools rooms up to 400 sq. ft.
  • 3 fan speeds for preferred airflow
  • Includes a remote and timer for convenience


Model # ARC-12SDH

Internet # 202555718

With this new Eco-friendly CFC free, lead free and high energy efficiency portable air conditioner, you can stay cool while keeping with better environmental standards and reducing energy consumption. This Whynter GREEN ARC-12SDH portable air conditioner features the ECO-FRIENDLY CFC free GREEN R-410A refrigerant and lead free RoHS compliant components. This unit features the patented advance auto drain technology, which uses and recycles moisture collected during the cooling process to produce cool air. The dual hose operation provides fast cooling.

  • Cools/heats up to a 400 sq. ft. space (ambient temperature and humidity may influence optimum performance)
  • 12,000 BTU cooling capacity and 11,000 BTU heating capacity (outside temp must be above 41°F)
  • Casters for easy mobility
  • 3 fan speeds
  • Full thermostatic control 61°F - 89°F
  • Digital display allows precise temperature control
  • 24 hour programmable timer
  • Remote control lets you easily adjust the temperature and function mode
  • Activated carbon air filter removes odor and smoke and a washable pre-filter
  • Auto restart after power outage
  • 96 Pints/day dehumidifying capacity
  • Patented auto drain function fully exhausts all condensate automatically in most environments
  • Upgraded plastic window kit (36 in.) and extendable exhaust hose (up to 49 in.) included
  • Home Depot Protection Plan:

    Home Depot Protection Plan

Info & Guides

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Assembled Depth (in.) 
16.5 in 
Assembled Height (in.) 
34 in 
Assembled Width (in.) 
20 in 
Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
20 in 
A/C Cooling Rate (BTU/hr) 
A/C Coverage Area (sq. ft.) 
Air Conditioner Product Type 
Portable Unit 
Air direction/circulation 
Amperage (amps) 
Automatic shutoff 
BTU Cooling Rating 
12000 Btu/h 
BTU Heat Rating 
11000 Btu/h 
Color Family 
Cord Length (ft.) 
Decibel Rating 
56 dBA 
Decibel Rating (Indoor) 
56 dBA 
Drain hose connection 
Energy Efficiency Ratio (EER) 
Filter Type 
Filter light reminder 
Heater included 
Hose Exhaust 
Moisture removal capacity (pints/day) 
Number of Fan Speeds 
Number of cool settings 
Product Weight (lb.) 
73 lb 
Remote Control 
Self-diagnostic tools 
Sleep setting 
Vent hose configuration 
Voltage (volts) 
Window venting kit included 
Warranty / Certifications
Certifications and Listings 
1-UL Listed 
Manufacturer Warranty 
One year limited warranty 


Rated 3.8 out of 5 by 25 reviewers.
Rated 5.0 out of 5.0 by Supreme clean cool comfort with style! As a senior adult I have seen much & purchased plenty! This portable fast cooling unit is a real gem! My 58 year old niece installed it for me since I have cancer. It was so easy for her & wow can I enjoy my sunroom finally! Love this cool fresh air! July 10, 2013
Rated 5.0 out of 5.0 by Easy to operate. I ordered the unit at my local sore and it was delivered when promised. I was able to install the unit myself without help from my husband. The directions were clear and easy to follow. I got the unit just before a CT heat wave and it is working as discribed and promised. I have every reason to believe it will heat in the winter as well as it is cooling in the summer. Over all this has been a good experience for us. July 16, 2013
Rated 5.0 out of 5.0 by Great Unit Works great for cooling! Cools down my 700sqft TV room quickly. Noise level is better than most. Installation is pretty much a snap, I did have to trim the window sliders to fit the narrow window I installed the unit in, but that is something I expected. A good sharp utility knife worked well..I haven't had the unit long enough to use the heater yet, so I can't comment on that area. Does kind of look like a mini fridge though, to bad there's no place to put beer in it! That would almost make it perfect for me! Oh and it's not as big as I though it would be. I like the fact that as It cools down the room the fan speed drops along with the temp making the noise level drop as well. I'd buy another if I needed it. Longevity of the unit is something that remains to be seen. Came well very well packed. May 16, 2012
Rated 5.0 out of 5.0 by Great unit Our third floor in our townhouse was so uncomfortably hot in the summer and cold in the winter. Heat and cool works great. It's not very loud. I read several reviews and this one seemed to get the best overall with the fewest amount of complaints. Install was a snap, in fact my 20 y/o daughter set it up in her room by herself if that gives you any indication of how easy it is. The exhaust fitter unit is great. I can't comment on the dehumidifier as we haven't had a need to use that yet. October 26, 2012
Rated 5.0 out of 5.0 by Perfect for my application I purchased this unit to convert my garage into an embroidery studio. The unit easily vented through the garage door and disconnects if and when I need to open the door. It cooled the space down in about 10-15 minutes when the front of the garage was in the direct late afternoon sun. Its no more noisy than a regular AC window unit when it is on full fan. The lower fan setting is hardly noticeable. Haven't had to use the heat function yet but I am encouraged that it will be equally as efficient. I am thrilled with it so far. September 13, 2011
Rated 4.0 out of 5.0 Cools very well, would recommend Not perfect, but definitely a keeper.This Whynter air conditioner is by far one of the better air conditioners I've used over the last 10 years. We no longer use central air except when there are guests. Spot coolers like this save a considerable amount of energy. It's bigger than a window air conditioner but portables are by far easier products to use. Don't try carrying this by yourself, it's easily over 50lbs. Not sure how BTUs are work but this does better than assumed. July 3, 2011
Rated 4.0 out of 5.0 by A very nice unit I bought this unit to keep my garage at a reasonable temperature (89) in the summer and to be a backup in case something goes wrong with my house AC. As luck would have it, my home AC went out a week after I received this. I was able to cool down my bedroom very nicely with this unit so I could at least sleep comfortably. My only complaint is that it doesn't remove much humidity, but that seems to be the case with all portable or window units I have used. The unit is also very quiet. If you have a brick home or a home where you actually have a window sill the majority of portable AC units WILL NOT work for you since most use a round to oval adapter for the exhaust plate in your window. This design is never done properly, you can't insert the adapter in the window plate because it hits the sill. This unit is one of the few that has a round intake/exhaust vents so it works as it should. Install was a breeze, the pieces fit together perfectly and to get a solid seal on the window/frame I just used self-adhesive foam strips (Home Depot carries this in the door hardware isle). Easily removed and any residue will be in the window track, not all over the frame like the suggested duct-tape. I have a feeling that most complaints about this unit relate to them not leaving the unit upright for 24 hours after receiving it. You MUST do this if you want the unit to last, it is very important. I am only giving it 4 stars because I have used it for such a short time period (2 weeks), I have no complaints so far. July 10, 2011
Rated 5.0 out of 5.0 by It cools the house wonderfully. I recently bought new windows and we didn't want a window unit to damage them in any way so we looked for a portable air conditioner. At first we bought a Soleus Air Conditioner/Heater 13,000 BTU and it did not even cool our living room. So, I researched other portable air conditioners and found that reviews reflected that dual hoses work better for cooling then the single hose units. I found Whynter and read all the reviews I found on it and it sounded like a great deal with a great air conditioner. It is. It has cooled my living room, kitchen, even hallway, and bathroom which the window unit did not. I would recommend this highly. The only negative is that it look like a tiny refrigerator in my living room. The hoses are a bit bulky. And the vent on the top of the machine does not have valves to slide left to right or oscillate. Other then that and as people said on other reviews the instructions and remote are not obvious as others are. But, overall I would highly recommend it for its cooling capacity. I don't know about the heating yet....I plan to use it for my sunroom in the winter. July 9, 2011
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