Home HEI HEI Tech Sheet #127 HEI Tech Sheet #127$57.76 Original price was: $57.76.$28.88Current price is: $28.88. Basics of Closed Feedwater HeatersData Sheet by Heat Exchange Institute, 09/12/2007 HEI Tech Sheet #127 quantity Add to cart Category: HEI Description Product Details Published: 09/12/2007 Number of Pages: 4 File Size: 1 file , 190 KB Related products HEI Tech Sheet #130HEI $57.76 Original price was: $57.76.$28.88Current price is: $28.88. Add to cart HEI Tech Sheet #124HEI $57.76 Original price was: $57.76.$28.88Current price is: $28.88. Add to cart HEI Tech Sheet #132HEI $57.76 Original price was: $57.76.$28.88Current price is: $28.88. Add to cart HEI Tech Sheet #123HEI $57.76 Original price was: $57.76.$28.88Current price is: $28.88. Add to cart