Costco Wholesale has
Midea Duo Smart 12K BTU 4-In-1 Inverter Portable Air Conditioner (MAP14HS1TWT) on sale for
$449.99 valid for
Costco Members only.
Delivery is free (
setup is not included).
Thanks to community member
gcappuccio for finding this deal
Note, must login to your Costco account w/ an active membership to purchase
About this product:- For Spaces Up To 550 sq. ft.
- Cooling BTUs: 12,000 BTU
- Inverter Technology: Up To 40% Energy Savings
- Innovative Hose Design For 2x Faster and Stronger Cooling
- 4-in-1 All-Season Comfort: Cools, Dehumidifies, Circulates, & Heats
- Wi-Fi Enabled and LCD Remote Control
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If you can deal with those first-world problems, highly recommended!
The downsides of the heat function are:
It only works if the temp outside is above 42 degrees. So depending on your climate this may only be useful for chilly spring and autumn days.
It generates a lot of condensate so you have to hook a hose up to the highest drain and empty the bucket every now and then.
When it's cold out, and the unit is not in use but still hooked up to the window, a lot of cold air is going to come in through the duct hose. This can also cause a lot of condensation to build up underneath the unit where the cold air pours out onto the floor. You really have to pull it out of the window and shut the window when it's not in use if it's cold outside.
Make sure you wrap the duct hose with the included sleeve if using heat mode, to prevent condensate from building on the duct hose.
Overall I would say it's good for chilly spring / autumn days where you need a little extra warmth but don't want to turn on the furnace, but not so useful for very cold days like in the dead of winter.
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The compressor is too loud for a bedroom. It would be ok if the sound was consistent but it goes from whisper quiet to loud which is very disruptive. Luckily in WA we usually only need to run it for a few hours in the evening until the outdoor temp drops into the 60's and can pull in the outside air with box fans.
Also any idea on the hose length and just how sturdy it is? I have an older LG single hose and the hose will crack with almost any bending, so it needs to be held in one single spot.
Last question -- my LG hose needed to be wrapped with lots of insulation around the hose (the metallic wrap and tape) to prevent the exhaust heat from warming the room, would that be of any benefit to this type of model, or just run it as-is?
Min./Max. Window Opening Width (inches)
19.1/63.8
Minimum Window Opening Height (inches)
9.8
There is a youtube linked in this thread, check it out to see how the hose is. It's long and very flexible it appears but is LARGE. For vertical windows, there was an adapter mentioned in the manual.
The exterior air intake within the unit is also not completely sealed, so during smoky times, some outside air can make its way in when not in operation.
FYI, this is a dual-hose design. The fact that they put both hoses (intake and outgoing) together in one visible hose doesn't change the operation, or how it performs.
There is no interior venting.
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Figured I'll share my experience to help out.
The hisense works great it blows cold and managed to get my gaming room down to 73 degrees on full blast mind u this is a small room but I could see it working in the advertised up to 400 Sq ft. It does the job well.
I bought an insulator sleeve for the exhaust and that helped it out more than I expected.
My problem is the lack of inverter. When this thing kicks on and I'm gaming with my pc on the same circuit it was tripping my breaker. I replaced my breaker because I had some other issues with it and it hasn't tripped it again but it's obvious I'm really taxing the circuit and I can't really switch to a different circuit for pc or ac unit unfortunately.
When the compressor kicks on it doesn't trip the breaker anymore but it does trigger my battery backup for a split second I hear it click.
The inverter would Eliminate this entirely for me
This also translates to a much more efficient unit check YouTube for power draw on both and the midea is less than half of the power draw than the hisense at any given moment.
My situation is unique though and tbh if u Wana cool a small room I don't doubt you will be happy with either but if u want to save energy and/or put this on an already taxed circuit def go with inverter option.
edit : also inverter will allow u to run the midea off a generator unlike the hisense.
Also, the heating function did fail on me in the middle of the winter, but it is able to cool again this summer thank goodness. And it is quiet enough for my little one to sleep through it.
There is no interior venting.
If you put the unit in a small room with the door closed and put your hand near the space under/around the door, you can feel a definite inflow of air coming in when the unit is in operation versus turned off. It's nowhere near as much as single hose units I've tried, but it's there.
If you search the Amazon reviews for this unit for the term "negative pressure", you'll find other people mentioning the same thing.
Another thing I like about this versus the hisense that I returned is that it's pretty smart about bringing in colder outside air without running the compressor. So if you live somewhere where the temperature varies wildly day-to-night you don't have to feel bad about leaving the unit on, it will only run if it absolutely needs to (like >5deg difference to target temp).
Now I wish I had waited because I bought a mattress from Costco and could have had this and the mattress delivered and got the $100 off.
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