Installing 2 "residential water heaters" Help!

[bony ago]

i am changing 2 residential solar water heater.

how will i connect both of the solar water heater?
any diagram?

do i need to plug-in electrical both of the water heater.(the existing is only one water heater is plug in)
Thanks

 

[Master Plumber Mark]

if you were wise you ought to send more pictures....

the best way to do a couple of electric heaters
would be to do them in SERIES .... going into the first one then out and into the second one and out to
the home... Parallell is a pain in the ass and it never draw correctly....

the first unit should be for the solar side which would pre-heat the water
and it would feed into the second unit which would flow to the house.....

I would suggest that power should go to the second unit that goes to the house
and using the first unit for the solar side of the system

if you have two solar heaters I would assume you are doing some sort of pump to move
the solar panel water through the units... it would just be a simple matter of everything
in SERIES pumping from tank #1 into tank # 2 then back to the panels... The same for the
potable water from the cold inlet on tank #1 out the hot side and into the cold inlet on tank # 2
then out the hot side to the home.......

I would get the larger thermal expansion tank for this set up.....
The power is only needed for stand by and should be on tank #2.....
you will probably get a shitload of hot water and it probably will
never come on except on stromy days...
















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