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SpecLG 8,000 BTU Through-the-Wall AC (LT0816CER)Midea 8,000 BTU Smart Inverter Window AC with Heat (MAW08HV1CWT)
PhotoLG 8,000 BTU Through-the-Wall AC (LT0816CER)Midea 8,000 BTU Smart Inverter Window AC with Heat (MAW08HV1CWT)
Our scoreSCORE6.0 / 10SCORE6.9 / 10
Our takeOur default for a bedroom with a working 24-26 in class sleeve: LG's manual covers sleeves from nine other brands, and it plugs into a standard 115V outlet. Its CEER of 10.6 sits below DOE's 2026 minimums, so check for a newer inverter wall unit first.Our window heat pump pick for cooling plus spring and fall heat: CEER 14.5, Most Efficient, sold by Amazon. The heat pump shuts off below 41°F outside, so pair it with a space heater anywhere it freezes.
TypeThrough-the-wallWindow heat pump
Cooling (DOE / SACC)8,000 BTU8,000 BTU
CEER10.614.5best
InverterNoYes
Heat modeNoneHeat pump
Noise, lowest setting (maker figure)53 dBAn/a
Window width, minn/a24 in
Window width, maxn/a38.5 in
Min sash openingn/a14.5 in
Weight65 lb56 lbbest
Warranty1 yr1 yr
ENERGY STARNoYes
Watch out forLG strongly recommends a new LG sleeve; if you reuse an old one without redirecting its rear louvers, a failure isn't covered. Warranty is 1 year parts and labor from an LG authorized dealer. Amazon titles it 7,800 BTU; LG rates it 8,000.Below 41°F outside the unit shuts off and shows LO (manual); owners who checked found no firmware that lowers it. Owners report rattles in the first days; adhesive foam at contact points helps if the cause is the window or bracket. A conventional box unit, not U-shaped; Midea's U models have no heat mode.
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