Recent content by ben9

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    Wiring Nest heatlink to Vaillant ecoTEC 937

    @Droler, the boiler looks similar to mine. Googled couple of hours and so far I have found out :Boiler:remove link between 3(RT)&4 and connect to Nest 2(heating on)&3(heating off), Boiler:L=Nest L Boiler N=Nest N Boiler E=Nest E I think It should work.
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