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I guess tankless water heaters are different in that respect in that they don't store a tank of water, so there's nothing to provide a reservoir for bacteria growth. I keep my front water heater set at 135 for the laundry and dishwasher. The rear one is set at 120 degrees for the three bathrooms in the back of the house. Seems to have worked out OK so far.
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Marv Evans
'69 911E
Last edited by Evans, Marv; 12-04-2023 at 09:01 AM..
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