Not enough hot water
Please help my planning… hypothetical… but more that possible…
I am planning a 80 gallon heat pump water heater.. there is a strong chance that this will not meet the demand at times of a family of 5 who all shower in the morning… washing machine etc… and a soaker tub… Aside from the obvious (no soaker tub, spread out the showers, have less teenagers)
1. Install a marathon 50 gallon after the hpwh… I can then switch the heat pump water heater to heat pump only mode.. and the marathon would use its well insulated self to maintain the temp…
2. Install a stiebel eltron 36 plus to handle the load after the heat pump water heater starts delivering low temp…It may reduce the flow… but wont experience cold water… I guess part of the question is will this unit not use much electricity most of the time when the water temp from the hpwh is ok.
Which scenario makes the most sense, and uses the least amount of energy? best guess?
Thank you in advance
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