diff --git a/teaser/logic/buildingobjects/boundaryconditions/boundaryconditions.py b/teaser/logic/buildingobjects/boundaryconditions/boundaryconditions.py
index 8b9d21df4..1591f76ce 100644
--- a/teaser/logic/buildingobjects/boundaryconditions/boundaryconditions.py
+++ b/teaser/logic/buildingobjects/boundaryconditions/boundaryconditions.py
@@ -139,27 +139,9 @@ class BoundaryConditions(UseConditions):
         AixLib: Used for night set-back for simple heater.
 
     INTERNAL GAINS
-    internalgains_mode: int [1, 2]
-        mode for the internal gains calculation:
-        0: Temperature and activity type dependent calculation. The
-           calculation is based on VDI2078 (default)
-        1: Temperature and activity type independent calculation, the max.
-           heatflowrate is prescribed by the parameter
-           fixed_heat_flow_rate_persons
-    additional_gains_mode: int [1, 2]
-        mode for additional internal gains (other than thermal gains),
-        default is None
-        1: Moisture
-        2: CO2 (not implemented yet)
-    fixed_heat_flow_rate_persons: float [W/person]
-        fixed heat flow rate for one person in case of selecting
-        internalgains_mode = 1
-    _persons : float [Persons/m2]
-        Specific number of persons per square area.
-
-        #todo delete old:
-        Average sensible heat transmission of people at 24 C
-        with specific
+
+    persons : float [W/m2]
+        Average sensible heat transmission of people at 24 C with specific
         heat transmission of 70 W/person, taken from SIA 2024.
         AixLib: Used in Zone record for internal gains, NrPeople
         Annex: Used for internal gains
@@ -296,13 +278,6 @@ def __init__(self, parent=None):
         self.heating_time = [5, 18]
 
         self._persons = 5.0
-        self.internalgains_mode = 0
-        self.additional_gains_mode = None
-        self.internalgains_mode_temperature_independent = 2
-        self.fixed_heat_flow_rate_persons = 70
-        self.internalgains_temperature_dependent = True
-        self.internalgains_with_moisture = False
-        # todo check that only one of the three modes can be selected
         self.activity_type_persons = 3
         self.ratio_conv_rad_persons = 0.5
         self._profile_persons = [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.2, 0.4,