Vaillant Ecotec PLUS 824 831 & PRO 28 28R1 Plate Heat Exchanger 0020038572

This Vaillant DHW 19 plate heat exchanger is only compatible with ecoTEC VUW (condensing) and Guernsey/Jersey (condensing) boilers/. The heat exchanger transfers heat from the boiler burner to the water. Primary heat exchangers are present in all boilers and use the heat from the burners to raise the water temperature in the system, whereas secondary heat exchangers only exist in combination boilers and can transfer heat between closed systems.   This part fits: ecoTEC pro 26 VUW 266/5-3 R4 ecoTEC plus 824 VUW 246/5-5 R2 ECO ecoTEC plus 831 VUW 316/5-5 R4 LPG ecoTEC plus 831 VUW 316/5-5 R4 ecoTEC plus 831 VUW 316/5-5 R2 ecoTEC plus 831 VUW 316/5-5 LPG ecoTEC plus 825 VUW 256/5-5 R4 ecoTEC plus 824 VUW 246/5-5 R4 Show More Show Less