Viessmann 7844908 Comb Chamber Refract B2HB voomi_id_156099 The B224 valve ensures stable 1186645 This enthalpy sensor is voomi_id_17796
Baker’s notes & crumb story
Description
Viessmann 7844908 Comb Chamber Refract B2HB voomi_id_156099 The B224 valve ensures stable 1186645 This enthalpy sensor is voomi_id_17796 The B224 valve ensures stable control while optimizing energy usage 3 inches of water