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We have 242 questions about mending 'water heat exchanger' in category Heating, Home Heating Systems which have been answered
Boiler cycle?
Fan tries to run every 15 seconds then stops immediately?
Worcester Bosch 532/i Combi Boiler?
Siemens RDJ10RF thermostat problem?
Vaillant F22 fault?
Remove boiler cover?
Worcester boiler dripping water?
How do I work my Storad storage heater?
Vaillant ecotec 831 plus?