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We have 374 questions about mending 'new heat exchanger' in category Heating, Home Heating Systems which have been answered
Fan tries to run every 15 seconds then stops immediately?
Worcester Bosch 532/i Combi Boiler?
How do I work my Storad storage heater?
Vaillant ecotec 831 plus?
Siemens RDJ10RF thermostat problem?
Remove boiler cover?
Boiler cycle?
Vaillant F22 fault?
Worcester boiler dripping water?