Whynter - 400 Sq. Ft. Portable Air Conditioner - Platinum
User rating, 4 out of 5 stars with 34 reviews.
4.0(34 Reviews)- 13 Answered Questions
Guest shoppers get 15 days to return or exchange this item. Log in for personalized information. Learn more >
How it's going to work:
- Every few minutes, we're going to release more inventory.
- Shortly, the button below will turn back to yellow (unless we sell out).
- At that point, try adding it to your cart again.
Pro Tip: If that works, checkout as fast as you can. It won't be reserved until you are in checkout. Good luck!
Cardmember Offers
Key Specs
- Recommended Room Size400 square feet
- DOE SACC Cooling Power4959 british thermal units
- ASHRAE Cooling Power12000 british thermal units
- Number of Cool Settings1
- Number Of Fan Speeds3
- Airflow Rate188 cubic feet per minute
- Remote ControlYes
- Integrated HeaterNo
- Sleep ModeNo
- TimerYes
- Auto Shut-OffYes
- Window Venting KitYes
- Energy Efficiency Ratio11.11
- App-ControlledNo
- Wireless ConnectivityNone
- Air Conditioner TypePortable
- Hose ConfigurationSingle

carousel
Description
Features
Portable air conditioner, fan and dehumidifier with 188 CFM air flow
Move it from room to room on 4 caster wheels. Includes easy-to-install window venting kit.
Cool up to 400 sq. ft.
12,000 BTU cooling capacity allows you to lower the temperature in a medium-to-large room.
Advanced auto drain technology
This system recycles the moisture in the air to produce a cool, refreshing breeze. It can dehumidify up to 91 pints in 24 hours without generating excess water.
24-hour temperature control
Programmable timer allows you to regulate your indoor climate even when you're not at home.
Adjust settings with ease
Use the digital display or simple remote control to maintain a comfortable indoor climate.
Convenient memory feature
Auto Restart will save your settings in case of a power outage.
Simple filter removal and maintenance
Washable filter and carbon air filter offer improved air quality.
Quiet operation
Watch TV, listen to music and converse at normal levels without noise disruption.
What's Included
- Whynter 12,000 BTU Portable Air Conditioner
- Remote with 2 AAA batteries
- Washable prefilter, activated-carbon air filter
- Extendable exhaust hose, plastic window kit
- Owner's manual
Key Specs
- Recommended Room Size400 square feet
- DOE SACC Cooling Power4959 british thermal units
- ASHRAE Cooling Power12000 british thermal units
- Number of Cool Settings1
- Number Of Fan Speeds3
- Airflow Rate188 cubic feet per minute
- Remote ControlYes
- Integrated HeaterNo
- Sleep ModeNo
- TimerYes
- Auto Shut-OffYes
- Window Venting KitYes
- Energy Efficiency Ratio11.11
- App-ControlledNo
- Wireless ConnectivityNone
- Air Conditioner TypePortable
- Hose ConfigurationSingle
General
- Product Name400 Sq. Ft. Portable Air Conditioner
- BrandWhynter
- Air Conditioner TypePortable
- Hose ConfigurationSingle
- Model NumberARC-12S
- ColorPlatinum
- Color CategorySilver
Dimension
- Product Height31 inches
- Product Width17 inches
- Product Weight62 pounds
BTU Rating
- Recommended Room Size400 square feet
- DOE SACC Cooling Power4959 british thermal units
- ASHRAE Cooling Power12000 british thermal units
Features
- Number of Cool Settings1
- Number Of Fan Speeds3
- Airflow Rate188 cubic feet per minute
- Noise Level53 decibels
- Remote ControlYes
- AC ControlsDigital
- Integrated HeaterNo
- Filter Indicator Light(s)No
- Filter TypeCarbon
- Sleep ModeNo
- TimerYes
- Auto Shut-OffYes
- Window Venting KitYes
Power
- Energy Efficiency Ratio11.11
- Voltage Requirement115
- Amperage9.5 amperes
Certifications Listings & Approvals
- ENERGY STAR CertifiedNo
Compatibility
- App-ControlledNo
- Wireless ConnectivityNone
Warranty
- Manufacturer's Warranty - Parts1 year; 3 years: compressor
- Manufacturer's Warranty - Labor1 year limited
Other
- UPC891207001538
Customer rating
Rating 4 out of 5 stars with 34 reviews
(34 Reviews)Search
Rating 4 out of 5 stars with 1 review
Overall great unit
|Posted .Overall great. Works as promised. But, the drain is too close to the ground and can't get anything underneath to catch the water. Also the window attachments are terrible, wound up making my own.
This review is from Whynter - 400 Sq. Ft. Portable Air Conditioner - Frost White
I would recommend this to a friendFeatures
Quality5 out of 5Value3 out of 5Ease of Use5 out of 5Rating 4 out of 5 stars with 1 review
I’m loving it
|Posted .Owned for 3 weeks when reviewed.Features
Quality5 out of 5Value3 out of 5Ease of Use5 out of 5I’m guilty of being a smoker and never liked the aftermath of the inside smoking habit! This thing is perfect for that situation
I would recommend this to a friendFeatures
Quality5 out of 5Value3 out of 5Ease of Use5 out of 5Rating 4 out of 5 stars with 1 review
Very Good
|Posted .I would recommend this to a friendOK. I hemmed and hawed about this purchase. I'm glad I pulled the trigger. It's an excellent energy efficient unit. It's fairly quiet for an air conditioning unit. My only complaint, is that the fan never shuts off. There isn't a "power saver" mode like window units have. If it had that feature I would have given it 5 stars.
Features
Quality5 out of 5Value5 out of 5Ease of Use5 out of 5Rating 5 out of 5 stars with 1 review
Cools down my whole apartment!
|Posted .Owned for 2 weeks when reviewed.Features
Quality5 out of 5Value5 out of 5Ease of Use5 out of 5Works really well on hot days ! Especially when your in the third floor and no balcony.
I would recommend this to a friendFeatures
Quality5 out of 5Value5 out of 5Ease of Use5 out of 5Features
Quality1 out of 5Value3 out of 5Ease of Use5 out of 5Rating 1 out of 5 stars with 1 review
Disappointed by poor quality control
|Posted .Features
Quality1 out of 5Value3 out of 5Ease of Use5 out of 5Bought to replace an identical unit, which failed after only five years. All the indicator lights work on this new one (that’s an improvement), but it seems much weaker — only about half as strong as the old one. Can only bring down the temperature of the room a couple of degrees. I’d have it fixed under the (3 year) warranty, but then I’d be completely without air conditioning for the rest of the summer. Plus, I’d have to lug it to a shipper during the pandemic. I think Whynter makes the customer pay for the shipping costs, too, and this thing weighs around eighty pounds. Too bad — not a lot of other two hose portables to choose from.
This review is from Whynter - 400 Sq. Ft. Portable Air Conditioner - Frost White
No, I would not recommend this to a friendFeatures
Quality1 out of 5Value3 out of 5Ease of Use5 out of 5Brand response from Whynter Customer Service
Posted .We are sorry your portable air conditioner is not cooling we well as your previous model. At Whynter, we constantly aim to provide superior products and a better customer experience. In order for us to accelerate the process we've already created a case within our system under case number: WHYNCASE579056. Please our Consumer Support Team, available Monday - Friday 8:30 AM - 4:30 PM PST at 1-866-WHYNTER (1-866-949-6837) and at support@whynter.com so we can further assist you with the issue. Please reference your case number.
Rating 4 out of 5 stars with 1 review
Adequate as a supplement to cool a large bedroom
|Posted .I would recommend this to a friendThe AC unit has met my expectations and I am glad I made the purchase. It is a great supplement to my larger AC units.
Rating 3 out of 5 stars with 1 review
big and noisy but does the job
|Posted .You will need 2 people to get this monster size box into your home or one person with long, strong arms to haul into your home! It's gigantic!! Although it says to take off exhaust hoses to use as dehumidifier, good luck getting them off; they do not pop or screw off easily so I think my use as dehumidifier will not occur. The green indicator light for the a/c has already burnt out. It says up to 400 sq ft of cooling area and that it does. With a fan, it can move the cool air and cool beyond the 400 sq ft. All in all, it serves it purpose. My purchase was primarily a mobile one: wanted a portable a/c since it's getting harder to install window a/c unit each year with put in and take out......................
This review is from Whynter - 400 Sq. Ft. Portable Air Conditioner - Frost White
I would recommend this to a friendRating 4 out of 5 stars with 1 review
Rated As Best Portable AC
|Posted .The vertical installation was easy in a sliding window, but I had to make modifications because the kit wasn't made to specs and directions were unclear. I ended up using plenty of duct tape to seal the cracks and anchor the kit. The product instructions insist that the unit be plugged into a wall socket, but the power cord is only 5'. If you don't have an outlet within 5' of the unit placement, then you have no choice but to use a power strip or extension cord which the instructions explicitly forbid and will probably void the warranty if you do so. The unit seems to cool a room fairly quickly because of the dual hose system, but in operation the display emits enough light that you can make decent shadow puppets on your wall and the operational noise level seems fairly high to me. Is this really the best portable AC on the market as some ratings proclaim? I wouldn't know without trying the others. I'm only using it in my 150 sq ft bedroom and it does a good job. Will it cool 400 sq ft as it claims? I will test this in the future as my apartment is 436 sq ft. Ordering this AC online from Best Buy was easy. Best Buy had the best online price, the best selection of AC's and free 5 day shipping right to my door. Very convenient!
This review is from Whynter - 400 Sq. Ft. Portable Air Conditioner - Frost White
I would recommend this to a friend
Q: QuestionDoes it have a heater.
Asked by Todd.
- A:Answer The ARC-12S model does not include a heating function. We carry a large line of portable air conditioners, including select models with heat. Please reach out to our Consumer Support Team Monday - Friday 8:30 AM - 4:30 PM PST at 1-866-WHYNTER (1-866-949-6837) and at customer.service@whynter.com for more information.
Answered by Whynter Customer Service
Q: QuestionPlease advise the dimensions of the plastic window kit. I just purchased a unit without thinking it may not fit! Guess I better start looking at material to adapt the kit. My window may be too long. Thank you.
Asked by best0256.
- A:Answer The included window kit measures, 6.5" W x 20" L (minimum), 46" (maximum). To further assist you with this matter, please contact our Consumer Support Team, Monday - Friday 8:30 AM - 4:30 PM PST at 1-866-WHYNTER (1-866-949-6837) and at support@whynter.com.
Answered by Whynter Customer Service
Q: Questiondo the portable air conditioners have to be vented outside? this unit will be used for the garageunit will be used to cool a garage
Asked by Anonymous.
- A:Answer Yes, the Whynter - 12,000 BTU Portable Air Conditioner needs to be vented outdoors.
Answered by CommunityAnswer
Q: QuestionWill this run on a gent that produces 3650 watts?
Asked by Tony.
- A:Answer Tony,
This portable air conditioner should be able to run on the generator described.
Our Consumer Support Team is available Monday - Friday 8:30 AM - 4:30 PM PST at 1-866-WHYNTER (1-866-949-6837) and at support@whynter.com should you have additional questions.Answered by Whynter Customer Service
Q: QuestionDoes a plastic bracket come for window use?
Asked by Anonymous.
- A:Answer Hello,
Your unit will come with a complete window kit to install this portable air conditioner.
Our Consumer Support Team is available Monday - Friday 8:30 AM - 4:30 PM PST at 1-866-WHYNTER (1-866-949-6837) and at support@whynter.com should you have additional questions.Answered by Whynter Customer Service
Q: QuestionI got this ac threw Amazon it has no instructions Do I need to add water to it ?
Asked by Anonymous.
- A:Answer No, it's not an evaporative cooler. You may have to drain it, however. The user manual is available on the manufacturer website https://www.whynter.com/product/whynter-eco-friendly-12000-btu-dual-hose-portable-air-conditioner/
Answered by Chris
Q: Questionwhat is the noise rating?
Asked by yamadata.
- A:Answer This unit is rated at < 52.5 decibels.
Our Consumer Support Team is available Monday - Friday 8:30 AM - 4:30 PM PST at 1-866-WHYNTER (1-866-949-6837) and at support@whynter.com should you have additional questions.
Answered by Whynter Customer Service
Q: QuestionOk how big of a room does this one cool I have 8 feet celing and 2 adults in room bedroom small master has an odd spaces . Hard to know how many square feet. Can I order it and pick up pay at store? Return policy?
Asked by Dirockson.
- A:Answer We bought this for our ~430'sq apt that has 10' ceilings & it works great. We use fans to move the cool air around b/c it's not a studio/open concept, but it still gets the job done very nicely!
Answered by Chris