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Tempering valve for DHW with bypass
Just looking for some advice . I had a oil fired water heater replaced with an indirect this year. The oil fired Bock water heater ran 18 years before leaking and was set to 125 degrees on the aquastat. You couldn’t run that system out of hot water. The water was clean and never gave me the odor I get now. The installer set the indirect to 120 degrees. I really like the fact at the lower temps, I get a warm water at the sinks etc without having to mix with cold. . With the indirect I get some odors on initial draw that lead me that we have a bacteria/sulfide problem. I am on city water and given the last water survived 18 years before leaking I don’t think water quality is the issue. Perhaps the heating surfaces of the oil fired water heater was hot enough to kill the bacteria. I bumped the indirect
up to 125. It helped but I think I need to run this hotter. So I am looking at having a tempering valve installed. But I do like hot water in the kitchen. I like to cook and want to make sure the dishwasher and the kitchen have hot enough water to clean cutting boards etc, I am thinking a bypass around the tempering valve for the kitchen and perhaps the washing machine. No kids in the house . Good idea or not?