Used 100 Sq Ft Kearney Industries model 100/100-38L kelonite block heat exchanger. Heat transfer area is 100 Sq Ft on process and service sides, with 3/8" diameter holes, with single pass on process side and 12 pass on service side. 6" process nozzles, 2" service nozzles, 100 PSIG @ 360 degrees F design pressure. Teflon service and process gaskets. Overall dimensions: 30" wide x 24" deep x 44" tall.