Here is the hookup to the hot water tank:
Hot water exit is coming out of the top middle of the hot water tank. The red PEX pipe attached at the "T" fitting is leading to the recirc pump which pumps to the coils in the sump.
The cold water supply line to the hot water tank runs down the front of the tank out of the picture. The white PEX pipe at the "T" fitting is coming directly from the coils in the sump.
The loop follows: hot water tank -> red PEX -> recirc pump -> coils -> return line to the cold water supply -> water gets reheated and goes through the loop again as needed.
