vaillant 937

  1. eveares

    Do any Vaillant weather compensating controls support traditional hard wired thermostats?

    I have have a Vailant EcoTec Plus 937 boiler that is about 10 years old. During it's first few years, I had the VRC700f control with the wireless outdoor temperature sensor, that modulates the flow temperature based on the outside temperature. Unfortunately the outside weather temperature...