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SpecMidea 8,000 BTU Smart Inverter Window AC with Heat (MAW08HV1CWT)Windmill 8,000 BTU WhisperTech Window AC (08W2Wi)
PhotoMidea 8,000 BTU Smart Inverter Window AC with Heat (MAW08HV1CWT)Windmill 8,000 BTU WhisperTech Window AC (08W2Wi)
Our scoreSCORE6.9 / 10SCORE5.7 / 10
Our takeOur 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.The Windmill to buy if you want one: an inverter box unit at CEER 15 and 41 dBA on low. A rough owner record and a one-year warranty are why we'd buy a Midea U or an LG Dual Inverter first.
TypeWindow heat pumpWindow
Cooling (DOE / SACC)8,000 BTU8,000 BTU
CEER14.515best
InverterYesYes
Heat modeHeat pumpNone
Noise, lowest setting (maker figure)n/a41 dBA
Window width, min24 in23 inbest
Window width, max38.5 inbest37 in
Min sash opening14.5 in14 inbest
Weight56 lbbest61 lb
Warranty1 yr1 yr
ENERGY STARYesYes
Watch out forBelow 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.Windmill's warranty is one year on every size, with no longer compressor term, and owners report control-board and stop-cooling failures. Windmill sells a non-inverter Original and a budget Lite line under the same name; confirm the model number on the box.
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