“how do i prepare the wall for a "THROUGH-THE-WALL" air conditioner”

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• Please see page 11 of the owner's manual for Installation instructions. The manual can be downloaded from the support page at https://www.lg.com/us/support/product/lg-LT0816CER.AC1AUSB. ^Daphane

  Answered by LG Digital Customer Care 4 years ago

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• It depends on the wall order sleeve cut hole in wall mount box insulate and finish for air tight inside and out.

  Answered by Cowboy57 2 years ago

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