IVT / Bosch / Buderus Articles490, 495: Rego400/412 Greenline Rego600/637 Optima, Premiumline X Rego 800 Greenline HE/HC/HA, Premiumline A/EQ/HQ: Rego1000, ProControl 500 Geo/Vent/AirX: Rego2000, ProControl 600 Doc navigation← NIBEThermia / Danfoss → How can we help? Name Email subject message