Location: born and raised in San mateo ca. living in Sacramento Ca for 3 years now.
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Funky 2 water-heater configuration?
having 2 w/h's in series i believe is the most energy efficient.very easy to tell how. c/w in h/w out to c/w in on 2nd w/h then h/w out.The #1 w/h is the work horse it's the one doing the most heating the 2nd w/h is basically a storage tank but will heat if needed.just having a bigger on will help but 2 in series is the way to go.