The catch
LG 14,000 BTU Dual Inverter Window Air Conditioner
34 lb heavier.
Side by side
LG LW1522IVSM vs Frigidaire FHWW125WE1: LG gives more cooling, and Frigidaire fits a smaller opening at less weight
Quick verdict
LG gives you 14000 BTU and takes a wider maximum window. Frigidaire gives you 12000 BTU in a 51 lb body, along with a smaller minimum opening and a slightly higher CEER.
Before you buy
Why, and what it costs you
Rated capacity is one-sixth higher on LG
Capacity goes up by about 16.7 percent.
Where this comes from
(14000 - 12000) divided by 12000 is 16.7 percent. The room load should be what justifies it.
The catch
Frigidaire 12,000 BTU Inverter Window Room Air Conditioner with Wi-Fi
Rated cooling capacity is lower.
LG 14,000 BTU Dual Inverter Window Air Conditioner
- Why pick it
- The higher 14000 BTU capacity is what your room needs.
- Frigidaire's 36-inch maximum is narrower than your compatible window.
- The catch
- 34 lb heavier.
Frigidaire 12,000 BTU Inverter Window Room Air Conditioner with Wi-Fi
- Why pick it
- 12000 BTU covers your load.
- A lower lifting weight and a 25-inch minimum window width serve you better.
- The catch
- Rated cooling capacity is lower.
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What this page compares
These LG and Frigidaire inverter window air conditioners differ in 14,000 versus 12,000 BTU, mounting weight, window width and rated efficiency.
LG gives you 14000 BTU and takes a wider maximum window. Frigidaire gives you 12000 BTU in a 51 lb body, along with a smaller minimum opening and a slightly higher CEER.
Day to day
How each one fits your routine
A small capacity gain comes with a much heavier chassis
LG gives about 17% more cooling output, yet it weighs 34 pounds more than Frigidaire. That can pay off in a hotter room where the unit stays up all summer. It is a less appealing trade for a room already covered by 12,000 BTU and a unit you take out each season. Weigh the recurring installation job along with the first day’s price.
Where this comes from
(14,000 − 12,000) ÷ 12,000 = 16.7% more cooling. 85 − 51 = 34 lb more appliance weight. The figures are rated output and net weight and do not measure cooling speed.
The extra reserve can be needed in a sunny 500-square-foot living room
For this room size and an 8-foot ceiling, ENERGY STAR starts at 12,000 BTU. Strong sun and a third regular occupant lift the screening example to 13,800. LG then sits closer to the calculated need. In a shaded room used by two people, that extra capacity may not be needed, so begin with the room and not the larger product number.
Where this comes from
12,000 × 1.10 + 600 = 13,800 BTU, given the stated sunny-room and occupancy assumptions. A full heat-load assessment can come out differently.
Which one fits
Pick the situations that sound like you
The window you have to use is 26 inches wide
Frigidaire alone has 26 inches inside its documented width range.
- LG 14,000 BTU Dual Inverter Window Air Conditioner
- Not suitable
- Frigidaire 12,000 BTU Inverter Window Room Air Conditioner with Wi-Fi
- Better fit
The window you have to use is 38 inches wide
LG alone has 38 inches inside its documented range.
- LG 14,000 BTU Dual Inverter Window Air Conditioner
- Better fit
- Frigidaire 12,000 BTU Inverter Window Room Air Conditioner with Wi-Fi
- Not suitable
The unit has to weigh less than 60 lb
They weigh 85 and 51 lb.
- LG 14,000 BTU Dual Inverter Window Air Conditioner
- Not suitable
- Frigidaire 12,000 BTU Inverter Window Room Air Conditioner with Wi-Fi
- Better fit
You need app control plus Alexa or Google support
Those connected-control options are documented for both.
- LG 14,000 BTU Dual Inverter Window Air Conditioner
- Similar
- Frigidaire 12,000 BTU Inverter Window Room Air Conditioner with Wi-Fi
- Similar
In practice
Differences you will notice
Rated capacity is one-sixth higher on LG
Capacity goes up by about 16.7 percent.
How we worked this out
(14000 - 12000) divided by 12000 is 16.7 percent. The room load should be what justifies it.
Weight goes up by much more than capacity does
LG weighs 34 lb more, which is about 67 percent over Frigidaire's weight.
How we worked this out
85 - 51 = 34 lb, and 34 divided by 51 equals 66.7 percent. It describes a tradeoff in lifting and passes no judgment on durability.
Window width can tip the choice either way
Frigidaire is favored by a 26-inch opening and LG by a 38-inch opening.
How we worked this out
26 is under LG's 27-inch minimum. 38 is over Frigidaire's 36-inch maximum yet inside LG's 39-inch limit.
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.
LG 14,000 BTU Dual Inverter Window Air Conditioner
Check this one yourself14,000 BTU on 115V. Fits window openings 27 to 39 inches wide and at least 16 inches tall. Your room works out to 8,000 BTU. It beats the target, but check yourself that it is not oversized.
Frigidaire 12,000 BTU Inverter Window Room Air Conditioner with Wi-Fi
Check this one yourself12,000 BTU on 115V. Fits window openings 25 to 36 inches wide and at least 15.5 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
LG, LW1522IVSM
14,000 BTU Dual Inverter Window Air Conditioner
This 115-volt dual-inverter window AC is made for larger rooms and has ThinQ remote control and a slide-out chassis. Be ready for a substantial 85-pound installation weight.
- Best for
- The higher 14000 BTU capacity is what your room needs.
Facts we checked
- Capacity for cooling: 14000 BTU
- Product's weight: 85 lb
- Width of the window: 27 to 39 inches
- Opening height at minimum: 16 inches
Option B
Frigidaire, FHWW125WE1
12,000 BTU Inverter Window Room Air Conditioner with Wi-Fi
A 12,000 BTU per hour cooler whose published combined energy efficiency ratio is 15.
- Best for
- 12000 BTU covers your load.
Facts we checked
- Capacity for cooling: 12000 BTU
- Product's weight: 51 lb
- Width of the window: 25 to 36 inches
- Opening height at minimum: 15.5 inches
Spec by spec
Where they really differ
| Spec | LG 14,000 BTU Dual Inverter Window Air Conditioner | Frigidaire 12,000 BTU Inverter Window Room Air Conditioner with Wi-Fi | In practice |
|---|---|---|---|
| Cooling capacity | 14000 BTU | 12000 BTU | A real load requirement should back up the 2000 BTU difference. |
| Product weight | 85 lb | 51 lb | Planning for lifting and storage is noticeably easier with Frigidaire. |
| Window width | 27 to 39 inches | 25 to 36 inches | The unit with the smaller minimum is not the unit with the larger maximum. |
| Minimum opening height | 16 inches | 15.5 inches | In a tight opening, a half inch can still rule out the LG. |
| CEER | 14.7 | 15.0 | A slightly higher rating for Frigidaire does not alone decide the total bill when cooling capacities differ. |
Trade-offs
What each pick costs you
With LG 14,000 BTU Dual Inverter Window Air Conditioner
- Higher minimums for window width and height.
With Frigidaire 12,000 BTU Inverter Window Room Air Conditioner with Wi-Fi
- Maximum window width of 36 inches.
Change of plan
When the answer changes
The room calls for 14000 BTU, and the window fits
Go with LG 14,000 BTU Dual Inverter Window Air Conditioner. The higher rated output comes from LG.
The installation has a strict unit limit below 60 lb
Go with Frigidaire 12,000 BTU Inverter Window Room Air Conditioner with Wi-Fi. Frigidaire weighs 51 lb.
The window fits neither installation range
Neither model fits. Pick another chassis and do not improvise a fit.
Decision guide
How to decide
Pick LG for 14000 BTU and a wider maximum window. Pick Frigidaire for 12000 BTU in a 51 lb body, a smaller minimum opening and a slightly higher CEER.
Capacity is not a comfort score
For a smaller load, a properly sized 12000 BTU model may fit better. The larger LG matters when your room assessment calls for more output.
What installation demands
Safe support and lifting are required for both. Frigidaire's 34 lb saving counts for a lot at seasonal removal time, and LG's slide-out chassis still has to be handled and mounted as its manual says.
Efficiency and smart controls
Inverter operation and app-based control come with both. Compare CEER within the right capacity class, and then think about operating hours and thermostat use instead of assuming a fixed amount of savings.
What this page can’t tell you
- Nothing here forecasts real energy bills, noise at equal cooling output or the labor of installing.
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 |
|---|---|---|---|
| LG 14,000 BTU Dual Inverter Window Air Conditioner |
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| Frigidaire 12,000 BTU Inverter Window Room Air Conditioner with Wi-Fi |
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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.
LG 14,000 BTU Dual Inverter Window Air Conditioner
The higher 14000 BTU capacity is what your room needs.
See price & reviews on AmazonFrigidaire 12,000 BTU Inverter Window Room Air Conditioner with Wi-Fi
12000 BTU covers your load.
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