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thermostats, outdoor reset controller on vitodens 100w is it possible with versatronik

jasonscorvairs Member Posts: 3
edited November 2021 in Radiant Heating
I am new here. Any help would be appreciated.  I have a Viessmann Vitodens 100-w and it has a Versatronik controller and running a DHW tank. Is it possible to have a outdoor reset thermostat hooked up? And where to buy one?