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We have 67 questions about mending 'heatslave 20/25' in category Heating, Home Heating Systems
How to fix my fireplace?
Oil fired boiler thermostat?
Siemens RDJ10RF thermostat problem?
Vaillant ecotec 831 plus?
Worcester boiler dripping water?
Remove cover off gas boiler?
Worcester 30 Cadillac combi boiler won’t fire up and the EA?
Remove boiler cover?
Greenstar 24Ri boiler, fast flashing - can I reset?