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Rosewill 4-in-1 12,000 BTU Portable Air Conditioner $305.10 + Free Shipping

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  • 12,000 BTU Cooling Capacity
  • Up to 300 Square Feet (Recommended)
  • Remote Included
  • Removable Filter
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#2
Price is good, but single hose.

Amazon has bad reviews.
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#3
Is this 12K BTU measured using ASHARE or DOE standards?
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#4
Quote from SilentJudge
:
Is this 12K BTU measured using ASHARE or DOE standards?
You can't get 12K effective BTU from a single hose system at 115V. So it's more like 7000 BTU or so.

I just picked up a refurb LG 12K BTU for $320. It doesn't have the heating function, but I trust it more and it is supposed to be quieter. The LG is advertised for a 400 sq. ft. room whereas the Rosewill is only advertised for 300 sq. ft., which makes me think the LG will outperform it in practice despite having the same BTU.

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Last edited by aberrero May 21, 2020 at 04:25 PM.
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#5
Quote from aberrero
:
You can't get 12K effective BTU from a single hose system at 115V. So it's more like 7000 BTU or so.
Good point! I just looked at the Wire Cutters best portable AC article and it seems like the best one, an LG LP1419IVSM, is 10K BTU under the new standard.
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#6
TERRIBLE ratings. I'll pass.
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#7
Single hose? NO NO NO
Unless you want a HUGE electricity bill... These single-hose monsters are terrible. If they banned glass light bulbs then why didn't they ban single-hose portable AC units? These are terribly inefficient due to their single-hose design. They create a huge vacuum in the room which sucks in hot humid air from the outside back into the house. Some folks have modified their single-hose monsters to function like a dual hose...
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#8
Single hose is great if you want to cool down a heatsoaked room in the evening. Especially if you have a studio or bedroom that gets hot at night, while the outside temperature is cooler than anywhere in the house.

This oddly specific set of conditions is true for 100% of the time I would ever use my portable A/C, thus single hose is fine for me.
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#9
Quote from Nytron
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Single hose is great if you want to cool down a heatsoaked room in the evening. Especially if you have a studio or bedroom that gets hot at night, while the outside temperature is cooler than anywhere in the house.

This oddly specific set of conditions is true for 100% of the time I would ever use my portable A/C, thus single hose is fine for me.
Yes, a single hose COOLS DOWN a room BUT it does it much more INEFFICIENTLY than a dual hoses or Mini-split, or conventional central air. Only a "single hose" system WILL draw in hot humid air into the house while your room is cooling down AND it will draw said house air into your room.
So YES, it WILL cool a room BUT at substantial cost. I learned this the hard way. Had a $350 monthly power bill after using two single hose units. I installed a mini splits and my power bill peaks at $180. I only run this about 3-mos a year so if you do the math the $170/mo savings = $510/yr and my mini split system was $2100. So at the end of my fourth summer it will have paid for itself just from the electricity savings! Plus it cools the entire house down.
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