When using the heater, must you vent it to the outside?

I find that it will run on high-speed (and basically maximum heat output) down to about 45 degrees ambient, then to maintain the warmth of the output air is drops to medium fan automatically. It then drops to low speed somewhere between 35 and 40. I'm using it in a much larger space than it is rated for, at least 650 square feet, and it will keep the furnace off until the ambient temp drops to about 37 degrees... and it will actually produce heat for another 10 below that. For a smaller room it could well be adequate even at that temperature, and it's important to remember that it only consumes 1,000 watts. Portable electric resistance heaters are typically 1500+ watts and are only rated for 200-250 square feet.

I have an unit that I can connect a small tube/hose to and drain accumulated water directly outside the window, is this possible with this unit.

The manual for this product (http://www.whynter.com/Upload/ProductManuals/Whynter_ARC-12SDH_User_Manual%202014.pdf) shows a drain port in the middle of the back as well as the drain at the bottom. Maybe this is a recent modification. The manual says, for continuous drainage (ie in high humidity cooling or dehumidifying): "In COOL or DRY modes, remove the upper drain plug from the back of the unit and put a container under the drain port to catch the water. Or install the drain water hose and place the open end of the hose to a drain area."I am noticing that several of the 12,000 BTU models now have upper drain ports, while the 14,000 BTU model still does not.

Does this unit have wheels? How portable is it?

It has wheels and can be rolled on a hard surface. It is quite heavy and is NOT portable going up and down stairs.

what electricity is needed 120or220

120V - Regular grounded, 3-prong, 15-amp outlet.

Whynter Portable Air Conditioner And Heater 12 000 Btu Arc

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Description

❄️🔥💧 Your all-in-one climate command center—cool, heat, dehumidify, and breeze through every season!

DUAL HOSE EFFICIENCY - Maximizes cooling power and airflow for faster, more effective temperature control
QUAD MODE VERSATILITY - Cool, heat, dehumidify, or fan with 3 speeds—custom comfort all year round
WHISPER QUIET OPERATION - Runs at just 51.5 dBA on low—stay cool without the noise
SMART AIR QUALITY FILTERS - Activated carbon and washable pre-filters keep your air fresh and clean
AWARD WINNING CLIMATE CONTROL - Good Housekeeping’s 2024 Best Portable AC & Heater—trusted performance for your space

The Whynter ARC-12SDH is a powerful 12,000 BTU dual-hose portable air conditioner and heater combo designed for rooms up to 400 sq ft. Featuring four operational modes—cooling, heating, dehumidifying, and fan—with whisper-quiet performance at 51.5 dBA, it includes a patented auto drain dehumidifier with 96 pints/day capacity. Equipped with activated carbon and washable pre-filters, this award-winning unit ensures superior air quality and energy-efficient climate control year-round.

Specifications

ASIN	B003MQDGIW
Additional Features	Portable
Air Conditioner Application	Indoor
Air Flow Efficiency	165.45 cubic_feet_per_minute_per_watt
Annual Energy Consumption	1100 watts
BEE Star Rating	No Energy Star
Best Sellers Rank	#819,218 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #168 in Portable Air Conditioners
Brand Name	Whynter
Capacity	96 pints
Color	White
Compressor Type	rotary_scroll
Control Method	Remote
Controller Type	Digital Control, Remote Control
Cooling Power	12000 british thermal units
Customer Reviews	3.6 3.6 out of 5 stars (194)
Efficiency	High
Filter Type	Activated Carbon Air Filter and Washable Pre-filter
Floor Area	400 square_feet
Form Factor	Portable
Global Trade Identification Number	00891207001972
Included Components	Window installation accessories, remote, and storage cover bag with pocket
Installation Type	Window Vent Installation
Inverter Type	No Inverter
Item Dimensions D x W x H	16.5"D x 20"W x 34"H
Item Type Name	Whynter ARC-12SDH 12,000 BTU (6,884 BTU SACC) Dual Hose Cooling Portable Air Conditioner, Heater, Dehumidifier, and Fan with Storage bag, up to 400 sq ft in White
Item Weight	78 pounds
Manufacturer	Whynter
Model Name	ARC-12SDH
Model Number	ARC-12SDH
Noise	51.5 db
Number of Heating Elements	1
Number of Power Levels	3
Operating Mode	Cooling
Power Source	Corded Electric
Refrigerant	R-410A
Room Type	Bedroom
Seasonal Energy Efficiency Ratio (SEER)	6.97
Start Year	2010
UPC	891207001972
Unit Count	1 Count
Voltage	115 volts
Warranty Description	1-year limited manufacturer's warranty and 3-year compressor warranty
Warranty Type	Limited
Wattage	1100 watts
Window Opening Maximum Height	46 inches
Window Opening Maximum Width	46 inches
Window Opening Minimum Height	20 inches
Window Opening Minimum Width	6.5 inches

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R59633

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In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

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TrustScore 4.5 | 7,300+ reviews

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Whynter Portable Air Conditioner & Heater, 12,000 BTU, ARC-12SDH, White

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