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Overview
There are two types of heat exchanger that can be present, the primary heat exchanger and the secondary heat exchanger. The primary is present in almost all boilers and uses heat from the burner to raise the temperature of water within the system. The sec
- Supplier Part Number: 178973
- 20 Plates
- 4 O-rings and Screws included
Technical specification
TypeDomestic Hot WaterManufacturer Model No178973Brand NameVaillant
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