diff --git a/ebusd-2.1.x/de/vaillant/bai.308523.inc b/ebusd-2.1.x/de/vaillant/bai.308523.inc
index 506c5f03..90899e86 100644
--- a/ebusd-2.1.x/de/vaillant/bai.308523.inc
+++ b/ebusd-2.1.x/de/vaillant/bai.308523.inc
@@ -24,6 +24,7 @@ r,,DCRoomthermostat,d.16 Raumthermostat,,,,"0E00",,,onoff,,,Wärmeanforderung vo
 r,,HwcDemand,d.22 WW Anforderung,,,,"5800",,,yesno,,,Brauchwasseranforderung (Zapfung oder Schaltsignal vom Speicher)
 r,,HeatingSwitch,d.23 Winterbetrieb,,,,"F203",,,onoff,,,Wintermodus aktiv (Heizbetrieb und Warmwasser)
 r,,StoragereleaseClock,d.25 Speicherfreigabe,,,,"4704",,,yesno,,,Freigabe der Speichrladung oder des Warmstartspeichers durcheinen eBUS Regler
+r,,PrimaryCircuitFlowrate,d.29 Durchfluss Heizkreis,,,,"FB00",,,uin100,,l/min,Einheit Durchfluss
 r,,Gasvalve,d.30 Gasventil,,,,"BB00",,,UCH,240=off;15=on,,GMV Ansteuersignal
 r,,TargetFanSpeed,d.33 Lüfter Solldrehzahl,,,,"2400",,,UIN,,1/min,Drehzahlsollwert des Lüfters
 r,,FanSpeed,d.34 Lüfteristdrehzahl,,,,"8300",,,UIN,,1/min,Aktuelle Lüfterdrehzahl
diff --git a/ebusd-2.1.x/en/vaillant/bai.308523.inc b/ebusd-2.1.x/en/vaillant/bai.308523.inc
index 3acb1945..a5a3bd0d 100644
--- a/ebusd-2.1.x/en/vaillant/bai.308523.inc
+++ b/ebusd-2.1.x/en/vaillant/bai.308523.inc
@@ -24,6 +24,7 @@ r,,DCRoomthermostat,d.16 room thermostat 24 V,,,,"0E00",,,onoff,,,External contr
 r,,HwcDemand,d.22 DHW demand,,,,"5800",,,yesno,,,domestic hot water (tapping or tank contact) demand
 r,,HeatingSwitch,d.23 operation mode,,,,"F203",,,onoff,,,Wintermode active
 r,,StoragereleaseClock,d.25 DHW demand enabled,,,,"4704",,,yesno,,,hot water release (tank storage) via eBus Control
+r,,PrimaryCircuitFlowrate,d.29 PrimaryCircuitFlowrate_DK,,,,"FB00",,,uin100,,l/min,value of flowrate
 r,,Gasvalve,d.30 Gasvalve,,,,"BB00",,,UCH,240=off;15=on,,Gasvalve activation signal
 r,,TargetFanSpeed,d.33 Target fan speed,,,,"2400",,,UIN,,1/min,Fan speed setpoint
 r,,FanSpeed,d.34 Actual fan speed,,,,"8300",,,UIN,,1/min,fan speed actual value