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The WM4500HBA does have an internal water heater to heat the water when using the extra hot water temp or the steam wash setting. The manual covers this on page 29. Note, it does not appear the washer will increase the temp for warm or hot water wash cycles. Instead LG assumes you have your hot water heater set at 120-135F.
Sorry, there was a problem. Please try again later.This model does not have an Internal Water Heater. ^Daphane
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