VAILLANT ECOTEC PRO PLUS Pressure Relief Valve 178985 GENUINE Actuator Motor & Cartridge BTH1112 Issue 8) – 47-075-37

BTH1112 Issue 8)  – 47-075-37 BEFORE Baxi Duo Tec 40 HE  – 47-075-26 Baxi Duo Tec 40 HE A (Issue 8)  – 47-075-38 Baxi Duo Tec 24 Combi ErP (Serial No

Baxi 105 HE A Instant  – 47-075-50 Baxi Duo Tec 24 HE  – 47-075-23 Baxi Duo Tec 24 HE A (After Serial No

they are the primary heat exchanger and the secondary heat exchanger

The secondary heat exchanger only appears on combination boilers and allows the heat to be transferred between 2 closed systems

Vaillant ecoTEC Plus 615 🔥

VAILLANT ECOTEC PRO PLUS Pressure Relief Valve 178985 GENUINE Actuator Motor & Cartridge BTH1112 Issue 8) – 47-075-37SELLER REFURBISHED VAILLANT ECOTEC PRO PLUS Pressure Relief Valve 178985 GENUINE THIS PARTS ALSO FITS: ecoTEC exclusive 627 VU 256 5 7 ecoTEC exclusive 835 VUW 356 5 7 ecoTEC exclusive 843 VUW 356 5 7 ecoTEC PLUS 612 VU 126 5 5 A R4 ecoTEC PLUS 612 VU 126 5 5 R4 ECOTEC PLUS 612 VU126 3 5 ECOTEC PLUS 612 VU126 3 5 R1 ECOTEC PLUS 612 VU126 5 5 ECOTEC PLUS 612 VU126 5 5 R1 ECOTEC PLUS 612 VU126 5 5 R2 ecoTEC PLUS 615 VU 156 5 5 A R4 ecoTEC PLUS 615 VU