Storage question and DHW

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OldStoneHouse

Member
Jan 8, 2010
91
Eastern Ontario
I'm just trying to get my system ready to use and I'm wondering about my non-pressurized storage. I have an EPDM liner in the tank - do I need EPDM on the lid? I've insulated the tank with ISO board (foil faced stuff).

I'm making a coil for my DHW and I'm wondering about pipe sizes. My existing DHW lines are 3/4". The coils I'm using are 1/2' but I am concerned about flow because of the size reduction. Should I make two coils with a 3/4" manifold or is this even something to worry about?

Thanks for your advice.
 
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