Viessmann vitodens 200. One mixed and one unmixed circuit.

[UrbanPlumbers]

Do I understand correctly that you find need a blending valve and pumping station on UFH anymore - just the manifold?

[Az-]

Hi Andrew, loving your vids! Can you reccomend any books/ online sources or even courses to learn more about system operation i.e you have mixed/ unmixed circuits flow rates etc etc. I work for a manufacturer and i have great product knowledge but sometimes its hard to advise when the system is at fault when you can only advise the boiler isnt (if that makes sense ha) any info would be great! 👍