| number_of_houses_2005_present_with_space_heater_coal | # | debug |  |  | 
| number_of_houses_2005_present_with_space_heater_combined_hydrogen | # | debug |  |  | 
| number_of_houses_2005_present_with_space_heater_combined_network_gas | # | debug |  |  | 
| number_of_houses_2005_present_with_space_heater_crude_oil | # | debug |  |  | 
| number_of_houses_2005_present_with_space_heater_district_heating_ht_steam_hot_water | # | debug |  |  | 
| number_of_houses_2005_present_with_space_heater_district_heating_lt_steam_hot_water | # | debug |  |  | 
| number_of_houses_2005_present_with_space_heater_district_heating_mt_steam_hot_water | # | debug |  |  | 
| number_of_houses_2005_present_with_space_heater_electricity | # | debug |  |  | 
| number_of_houses_2005_present_with_space_heater_heatpump_air_water_electricity | # | debug |  |  | 
| number_of_houses_2005_present_with_space_heater_heatpump_ground_water_electricity | # | debug |  |  | 
| number_of_houses_2005_present_with_space_heater_heatpump_pvt_electricity | # | debug |  |  | 
| number_of_houses_2005_present_with_space_heater_heatpump_surface_water_water_ts_electricity | # | debug |  |  | 
| number_of_houses_2005_present_with_space_heater_hybrid_crude_oil_heatpump_air_water_electricity | # | debug |  |  | 
| number_of_houses_2005_present_with_space_heater_hybrid_heatpump_air_water_electricity | # | debug |  |  | 
| number_of_houses_2005_present_with_space_heater_hybrid_hydrogen_heatpump_air_water_electricity | # | debug |  |  | 
| number_of_houses_2005_present_with_space_heater_network_gas | # | debug |  |  | 
| number_of_houses_2005_present_with_space_heater_wood_pellets | # | debug |  |  | 
| number_of_houses_before_1945_with_space_heater_coal | # | debug |  |  | 
| number_of_houses_before_1945_with_space_heater_combined_hydrogen | # | debug |  |  | 
| number_of_houses_before_1945_with_space_heater_combined_network_gas | # | debug |  |  | 
| number_of_houses_before_1945_with_space_heater_crude_oil | # | debug |  |  | 
| number_of_houses_before_1945_with_space_heater_district_heating_ht_steam_hot_water | # | debug |  |  | 
| number_of_houses_before_1945_with_space_heater_district_heating_lt_steam_hot_water | # | debug |  |  | 
| number_of_houses_before_1945_with_space_heater_district_heating_mt_steam_hot_water | # | debug |  |  | 
| number_of_houses_before_1945_with_space_heater_electricity | # | debug |  |  | 
| number_of_houses_before_1945_with_space_heater_heatpump_air_water_electricity | # | debug |  |  | 
| number_of_houses_before_1945_with_space_heater_heatpump_ground_water_electricity | # | debug |  |  | 
| number_of_houses_before_1945_with_space_heater_heatpump_pvt_electricity | # | debug |  |  | 
| number_of_houses_before_1945_with_space_heater_heatpump_surface_water_water_ts_electricity | # | debug |  |  | 
| number_of_houses_before_1945_with_space_heater_hybrid_crude_oil_heatpump_air_water_electricity | # | debug |  |  | 
| number_of_houses_before_1945_with_space_heater_hybrid_heatpump_air_water_electricity | # | debug |  |  | 
| number_of_houses_before_1945_with_space_heater_hybrid_hydrogen_heatpump_air_water_electricity | # | debug |  |  | 
| number_of_houses_before_1945_with_space_heater_network_gas | # | debug |  |  | 
| number_of_houses_before_1945_with_space_heater_wood_pellets | # | debug |  |  | 
| number_of_houses_future_with_space_heater_coal | # | debug |  |  | 
| number_of_houses_future_with_space_heater_combined_hydrogen | # | debug |  |  | 
| number_of_houses_future_with_space_heater_combined_network_gas | # | debug |  |  | 
| number_of_houses_future_with_space_heater_crude_oil | # | debug |  |  | 
| number_of_houses_future_with_space_heater_district_heating_ht_steam_hot_water | # | debug |  |  | 
| number_of_houses_future_with_space_heater_district_heating_lt_steam_hot_water | # | debug |  |  | 
| number_of_houses_future_with_space_heater_district_heating_mt_steam_hot_water | # | debug |  |  | 
| number_of_houses_future_with_space_heater_electricity | # | debug |  |  | 
| number_of_houses_future_with_space_heater_heatpump_air_water_electricity | # | debug |  |  | 
| number_of_houses_future_with_space_heater_heatpump_ground_water_electricity | # | debug |  |  | 
| number_of_houses_future_with_space_heater_heatpump_pvt_electricity | # | debug |  |  | 
| number_of_houses_future_with_space_heater_heatpump_surface_water_water_ts_electricity | # | debug |  |  | 
| number_of_houses_future_with_space_heater_hybrid_crude_oil_heatpump_air_water_electricity | # | debug |  |  | 
| number_of_houses_future_with_space_heater_hybrid_heatpump_air_water_electricity | # | debug |  |  | 
| number_of_houses_future_with_space_heater_hybrid_hydrogen_heatpump_air_water_electricity | # | debug |  |  | 
| number_of_houses_future_with_space_heater_network_gas | # | debug |  |  |