The catch
Midea 12,000 BTU Smart Inverter Window AC with Heat
It can't stand in for dependable winter heating, since heating shuts down when it's below 41 F outdoors.
Side by side
Midea 12K Heat vs LG LW1022IVSM: LG suits lower, narrower openings, and Midea adds heat plus cooling capacity
Quick verdict
Midea gives you more cooling capacity along with mild-weather heat. LG goes into narrower, lower openings, and it makes sense as a cooling-only option when a 10,000 BTU unit is the right size for the room.
Before you buy
Why, and what it costs you
That step up in capacity is 20 percent
Midea's nominal cooling rating is 2,000 BTU higher.
Where this comes from
12000 minus 10000 equals 2000. Dividing by 10000 gives 20 percent.
The catch
LG 10,000 BTU Dual Inverter Smart Window Air Conditioner
Installing it takes more effort because of the deep cabinet and the roughly 10,000 BTU chassis.
Midea 12,000 BTU Smart Inverter Window AC with Heat
- Why pick it
- The 12,000 BTU cooling class is what your room calls for.
- You expect to use supplemental heat when outdoor temperatures allow.
- The catch
- It can't stand in for dependable winter heating, since heating shuts down when it's below 41 F outdoors.
LG 10,000 BTU Dual Inverter Smart Window Air Conditioner
- Why pick it
- Your window width falls from 22 up to under 24 inches.
- Heating is already in place, and the room needs around 10,000 BTU.
- The catch
- Installing it takes more effort because of the deep cabinet and the roughly 10,000 BTU chassis.
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What this page compares
Cooling load, fit in a narrow window and whether supplemental heating is worth it: how the Midea 12,000 BTU heat-pump window unit stacks up against the LG LW1022IVSM.
Day to day
How each one fits your routine
Midea can suit a chilly home office inside its operating range
Midea pairs supplemental heat with a higher cooling-capacity class, which can suit a home office used through spring and autumn. Its manual still confines heat-mode outdoor operation to 41 to 75°F. For dependable heat when it freezes outside, keep a separate suitable heating plan. LG’s cooling-only model cannot do that second job at all.
Where this comes from
Midea delivers 12,000 BTU cooling plus a heat mode with a documented 41 to 75°F outdoor range. LG delivers 10,000 BTU cooling and has no heat mode.
A narrow sash may matter more than an extra seasonal function
Compared with Midea, LG’s minimum window width is two inches smaller and its minimum opening height is 1.5 inches lower. So a 23-inch opening keeps LG in the running and rules out the standard Midea installation. If the room needs Midea’s extra capacity or heat, turn to another compatible model or heating arrangement and do not treat the width limit as optional.
Where this comes from
The minimum opening for LG is 22 W by 13 H inches, and Midea requires 24 W by 14.5 H inches. That is a 2 inch difference in width and 1.5 inches in height.
Which one fits
Pick the situations that sound like you
23-inch-wide sash
This width is included only by LG.
- Midea 12,000 BTU Smart Inverter Window AC with Heat
- Caution
- LG 10,000 BTU Dual Inverter Smart Window Air Conditioner
- Better fit
Need the 12,000 BTU class
LG's rating is 10,000 BTU.
- Midea 12,000 BTU Smart Inverter Window AC with Heat
- Better fit
- LG 10,000 BTU Dual Inverter Smart Window Air Conditioner
- Caution
Need heat in mild weather
Midea comes with a heat pump.
- Midea 12,000 BTU Smart Inverter Window AC with Heat
- Better fit
- LG 10,000 BTU Dual Inverter Smart Window Air Conditioner
- Caution
14 inches of clear opening
LG asks for 13 inches.
- Midea 12,000 BTU Smart Inverter Window AC with Heat
- Caution
- LG 10,000 BTU Dual Inverter Smart Window Air Conditioner
- Better fit
In practice
Differences you will notice
That step up in capacity is 20 percent
Midea's nominal cooling rating is 2,000 BTU higher.
How we worked this out
12000 minus 10000 equals 2000. Dividing by 10000 gives 20 percent.
LG is the pick for a 23-inch-wide sash, whatever the room rating
That width is covered by LG, and Midea requires 24 inches.
How we worked this out
23 falls in 22 to 36 and under 24. Even a suitable heat load cannot make an undersized opening fit.
A low opening can eliminate the heat option
Midea requires 1.5 inches of extra height.
How we worked this out
14.5 minus 13 equals 1.5 inches. With a 14-inch clear height, LG alone meets its published minimum.
Plug in your numbers
Does either unit have the cooling and window fit you need?
This checks hard limits only. Personal preferences are left out of the math.
Midea 12,000 BTU Smart Inverter Window AC with Heat
Check this one yourself12,000 BTU on 115V. Fits window openings 24 to 38.5 inches wide and at least 14.5 inches tall. Your room works out to 8,000 BTU. It beats the target, but check yourself that it is not oversized.
LG 10,000 BTU Dual Inverter Smart Window Air Conditioner
Check this one yourself10,000 BTU on 115V. Fits window openings 22 to 36 inches wide and at least 13 inches tall. Your room works out to 8,000 BTU. It beats the target, but check yourself that it is not oversized.
The cooling target uses the standard room-size method, adjusted for sun, extra people and kitchen heat. The window check uses the maker’s published limits.
Option A
Midea, MAW12HV1CWT
12,000 BTU Smart Inverter Window AC with Heat
This 12,000 BTU inverter window unit comes with app control and supplemental heat that works in milder outdoor temperatures.
- Best for
- The 12,000 BTU cooling class is what your room calls for.
Facts we checked
- Rating for cooling: 12,000 BTU
- Room guide from the maker: Up to 550 square feet
- Heat: A heat pump, with limits outdoors
- Width of the window: 24 to 38.5 inches
Option B
LG, LW1022IVSM
10,000 BTU Dual Inverter Smart Window Air Conditioner
With a published combined energy efficiency ratio of 15, it cools at 10,000 BTU per hour.
- Best for
- Your window width falls from 22 up to under 24 inches.
Facts we checked
- Rating for cooling: 10,000 BTU
- Room guide from the maker: Up to 450 square feet
- Heat: None offered
- Width of the window: 22 to 36 inches
Spec by spec
Where they really differ
| Spec | Midea 12,000 BTU Smart Inverter Window AC with Heat | LG 10,000 BTU Dual Inverter Smart Window Air Conditioner | In practice |
|---|---|---|---|
| Cooling rating | 12,000 BTU | 10,000 BTU | Rated cooling is 20 percent higher on Midea. |
| Maker room guide | Up to 550 square feet | Up to 450 square feet | Treat these as sizing starting points. They do not guarantee room performance. |
| Heat | Heat pump with outdoor limits | Cooling only | LG offers no supplemental heating. |
| Window width | 24 to 38.5 inches | 22 to 36 inches | Midea takes wider sashes, and LG fits narrower ones. |
| Opening height | 14.5 inches | 13 inches | LG suits a lower opening. |
Trade-offs
What each pick costs you
With Midea 12,000 BTU Smart Inverter Window AC with Heat
- Install it only in a double-hung window that is 24 to 38.5 inch wide and opens at least 14.5 inches high, and expect to handle a 58-pound unit.
With LG 10,000 BTU Dual Inverter Smart Window Air Conditioner
- A U-shaped or saddle model keeps more of the view than this one.
Change of plan
When the answer changes
You want cooling at 12,000 BTU and no heat pump
Neither model fits. Frigidaire gives you the larger cooling class in a cooling-only unit that weighs less.
Decision guide
How to decide
Choose Midea for the extra cooling capacity and mild-weather heat. Choose LG for narrower, lower openings, or as a cooling-only unit when 10,000 BTU suits the room.
If the room is big and sunny
Midea's higher capacity counts only if your actual heat load justifies it. The advertised 550 and 450 square-foot figures rest on conditions that may not match your home. Weigh sun exposure, insulation and adjoining rooms before you treat a 100-square-foot marketing gap as an exact dividing line.
If the bedroom window is narrow
LG begins at 22 inches wide and 13 inches of opening height, which can make it the only one that works where the Midea will not fit. Check frame depth and support details too, beyond these two dimensions.
On whether you need the heat
The Midea justifies itself when the room needs occasional heat in milder weather. Where reliable heating already exists, the extra function may do little for how you use the room day to day. App control comes with both, so a phone connection by itself is no reason to step up to the larger heat-pump unit.
What this page can’t tell you
- This is a comparison of published specifications and does not rest on matched-room cooling or noise tests.
- Outdoor temperature changes what a heat pump can output. Supplemental heating claims do not prove it works as a full winter heating solution.
By the numbers
What the data shows
What we found across the window air conditioners we compare, plus the checked facts behind each finding.
Show the facts and the math
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Midea 12,000 BTU Smart Inverter Window AC with Heat |
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| LG 10,000 BTU Dual Inverter Smart Window Air Conditioner |
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Ready to buy
See today’s price and what owners say
Open either model on Amazon for the current price, customer reviews and delivery options.
Midea 12,000 BTU Smart Inverter Window AC with Heat
The 12,000 BTU cooling class is what your room calls for.
See price & reviews on AmazonLG 10,000 BTU Dual Inverter Smart Window Air Conditioner
Your window width falls from 22 up to under 24 inches.
See price & reviews on AmazonEach link opens in a new tab.
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