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DHW 20 Plates Heat Exchanger - Combi Instant/Duo Tec/Platinum

Part number (MPN)
7223558
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Source
retailer parts list
checked 2026-11-06
Fitting notes

Work on gas appliances must be carried out by a Gas Safe registered engineer. Check the model and serial number on the boiler data plate. Source: a parts retailer's list, not the manufacturer's: confirm the part number on the data plate or with the manufacturer before ordering.

Compatible appliances

Always check the model and serial number on the data plate before ordering.

Frequently asked questions

Which appliances does 7223558 fit?

The sources we checked list 7223558 (DHW 20 Plates Heat Exchanger - Combi Instant/Duo Tec/Platinum, Baxi) for: BAXI DUO-TEC 28 HE NG, Baxi Combi Instant 105, Baxi Combi Instant E 80, Baxi Combi Instant HE 105, Baxi Combi Instant HE 80, Baxi Duotec HE 24, Baxi Duotec HE 28, Baxi Duotec HE 33, Baxi Duotec HE 40, Baxi Duotec HE A 24, Baxi Duotec HE A 33, Baxi Duotec HE A 40, Baxi Duotec HE LPG 24, Baxi Duotec HE LPG 28, Baxi Duotec HE LPG 33, PLATINUM 24 HE A COMBI NG, PLATINUM 24HE COMBI NG, PLATINUM 28 HE A COMBI NG, PLATINUM 28HE COMBI NG, PLATINUM 33 HE A COMBI NG, PLATINUM 40 HE A COMBI NG, PLATINUM 40HE COMBI NG, Baxi Platinum Combi HE 24, Baxi Platinum Combi HE 28, Baxi Platinum Combi HE 30, DUO-TEC 24 COMBI NG, DUO-TEC 28 COMBI LPG, DUO-TEC 28 COMBI NG, DUO-TEC 33 COMBI NG, DUO-TEC 40 COMBI NG, DUOTEC 28HE A AFTER CAC0929, DUOTEC 28HE A BEFORE CAC0929, GOLD COMBI ERP 24 SERIAL AC, GOLD COMBI ERP 24 SERIAL BC, GOLD COMBI ERP 28 SERIAL AC, GOLD COMBI ERP 28 SERIAL BC NG, GOLD COMBI ERP 33 SERIAL AC, GOLD COMBI ERP 33 SERIAL BC NG, GOLD COMBI ERP LPG 28 S/N AC, GOLD COMBI28ERP LPG S/N BC LPG, PLA28ERP COMBI S/N AC COMBI NG, PLA33ERP COMBI S/N AC COMBI NG, PLATINUM 24 COMBI ERP COMBI NG, PLATINUM 24 COMBI ERP S/N BC, PLATINUM 28 COMBI ERP S/N BC, PLATINUM 33 COMBI ERP S/N BC, PLATINUM 40 COMBI ERP COMBI NG, TITA 24 ERP S/N AC COMBI NG, TITA 28 ERP S/N AC COMBI NG, TITA 33 ERP S/N AC COMBI NG, TITA 40 ERP S/N AC COMBI NG, TITANIUM 24 COMBI ERP S/N BC, TITANIUM 28 COMBI ERP S/N BC, TITANIUM 33 COMBI ERP S/N BC, TITANIUM 40 COMBI ERP S/N BC. Always check the model and serial number on the data plate before ordering.

Does 7223558 have equivalent or superseded part numbers?

The sources we checked list no equivalents for 7223558. Ask a Baxi stockist to confirm.

What should I check before fitting 7223558?

Work on gas appliances must be carried out by a Gas Safe registered engineer. Check the model and serial number on the boiler data plate. Source: a parts retailer's list, not the manufacturer's: confirm the part number on the data plate or with the manufacturer before ordering.

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Some lists are dated and the part may have been superseded. Information only, compatibility not guaranteed.