Discuss Explain why some boilers have pump over run and others that dont in the Plumbing Jobs | The Job-board area at PlumbersForums.net
Yep the Viessmann compacts are ok without , ( SS heatexchanger )
Reply to Explain why some boilers have pump over run and others that dont in the Plumbing Jobs | The Job-board area at PlumbersForums.net
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