Tommy Tyler
I think you misunderstood, probably because you’re hung up on piping the two heaters in parallel instead of series. Jerry wasn’t suggesting my hot water final temperature setting, he was suggesting the output temperature of the pre-heat water heater, which is what I asked for in the first place. I would still set the second heater to 140 degrees or whatever temperature hot water desired. Thanks again, Jerry. As it turns out, that’s about where my plumber had set it originally. He also told me the output heater would do most of the work (true) and not to be surprised if it needed replacement long before the pre-heater.
