Finally got it all assembled.  The march pump I got on ebay work better than I thought it would. With the ball valve fully open it moves alot of water.

With the controller set on ‘mash’ mode, it maintains the water at about 1/2 degree F. Since it is using a HERMs coil it does take a while to get to temp, 12 gallons of water between the BK and HLT with only 3kW.

In ‘boil’ mode with can get 5 gallons in the BK boiling in about 45 minutes.