diy solar

diy solar

Instant hot water heater with 48V DC

If anyone who reads this is good at physics and math maybe they have a quick answer.

In a resistive element, like an electric water heater, aka the 4500 watt at 240 volt type that is everywhere.

Let's even say the standard 50 gallon tank.

How many kilowatts of energy does it take to raise that water 10 degrees an hour ?

Or break it down to so many degrees per kilowatt ,per gallon, per hour.

Thanks.
 
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