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UUFH_n_Rads replied to the thread Vaillant Ecotec system boiler with VR66 and Opentherm (VR33 and Nest).Related to VR33... I'm looking for some advice on adapting and updating my system, which is currently: Vaillant ecoTEC Plus 630 System Boiler VR61 Mixer Module, controlling 2 zones (upstairs/downstairs) + DHW. VRC430 Weather...
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UUFH_n_Rads replied to the thread Vaillant VR33 (with Nest) and VR66.I'm looking for some advice on adapting and updating my system, which is currently: Vaillant ecoTEC Plus 630 System Boiler VR61 Mixer Module, controlling 2 zones (upstairs/downstairs) + DHW. VRC430 Weather Compensator VR81 remote...
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