Recent content by ArturL

very lengthy responses, so will need some more time to properly digest the content. Due to the weekend and fatherhood responsibilities - I shall leave that for the evening read ;) In the meantime thank you both for the replies.

Thank you ScottishGasMan for your time to respond. My system is designed and set-up to give 20deg delta and the required flow rates for the rads to give the desired output are achieved with AutoBalancing valves from IMI Heimeier. As with those types of valves (be it the Drayton ones, Danfoss...

Thank you Johntheo5 for your reply. I understand this is some of your own measurements put in the table. I know very well when boilers start condensing but thx for reminding me that ;) I am not sure if I understand correctly what you're trying to put across here. Are you saying that it is...

Dear all; I feel I need some ideas as to where the problem might be. I have a Vaillant Combi ecotec plus 825, 1 zone 9 rads, 6.7kW heat loss CH system. This is controlled by a WC SensoHome. The issue is that the boiler registers incorrect delta on Flow & Return (ca. 8-9C drop) due to water...