930 ft2 heat exchanger, zirconium tubes and tubesheet, shell and heads 304L, shellside 75 psi @ 200 degF, tubeside 200 psi @ 550 degF, 237 tubes 3/4 OD x 18 BWG x 20 ft long, built by Ellett Ind., year 2008, NB 719, serial no. 43890, E610 cooler/condenser
2900 ft2 heat exchanger, zirconium tubes and tubes sheet, 304SS shell and heads, shellside 75 psi @ 400 degF, tubeside 50 psi @ 400 degF, 1125 tubes 3/4 OD x 16 BWG x 13 ft, built by Ellett Ind. year 2006, NB no. 659, serial no. 43624, 17,000 lbs, E388 acid cooler condenser.