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Many thanks to all who replied to my previous post on wed 4th Nov, much appreciated. I have a couple of other questions that I would appreciate comments on. It was mentioned from my last message that with 13 rads I should put the partial heat load to 19kw However even on the default of...

Hi I would appreciate any advice with questions below Vaillant EcoTec Exclusive 838 13 rads on system What is the most efficient burner anti cycle time with target feed of 70 degrees. The current default is 20mins. Also would you expect the default pump target value (Auto) to be...

I have a fully pumped system using a glow-worm micron 70FF. It has a divertor valve near the pump. If the valve is set to o.3 bar you get good performance but as the system switches off a loud knocking noise occurs. If I alter the valve setting I can get rid of this but takes longer to heat...