Morning all,

I've got a Vallient EcoTec and my plumbers coming over next week to help me reconfigure the system for EvoHome and OpenTherm.

I know what I'm doing on the DHW setup from other posts, but I can't find straitforward instructions for the VR33 isntall in the boiler.

I've found various Dutch forums ( but Google translate I'm not 100% happy about giving it a go and possibly breaking the boiler.

Has anyone in the UK done this and got a few bullet points on what goes where, which loops go on and off etc?

Many thanks