DrakeWe have used 40 to 80 gallon water heaters mainly the Rheem Marathon
electric units, we used 15 minutes per person twice a day on the timer, we did
use 7 day timers to have different start times on the weekends. We had great
success with that as a base line.Jerry
Sent from my Verizo
Sorry to say nothing, but a few years ago I did a study on off grid and on
grid houses and some had electric resistance water heaters and one with a
Heat pump water heater. If I can find the data I will send. However, it
varied a lot most the families were for 2 or 3 people
The variation made it
You first need to know your ground temperature. Then figure a delta to 100
or so degrees. Most but not all showerheads flow 2.5gpm and showers are
typically 10 minutes. You can then find a calculator online to calculate
how many Btus are required to raise water temp for your delta per gallon.
Conve
Hello Wrenches,
Is there a good way to estimate the power that will be consumed for
electric water per person per day? We are estimating the amount of
power that will be used by an all electric duplex, and the water
heater amount seems high. The current model we have claims 3493 kWh/
year per 26 g
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