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[theoldmini]

I cannot seem to get much heat from my heater. The system has been flushed etc and all is ok. A new thermostat has been fitted. The heater take off valve is ok and water flows through it. The head does not have a bypass hose but does have a sandwich plate. The plumbing is all new hoses. Description is pipe off left corner of the head into heater. Return then goes into bottom hose. Any ideas please. Thanks