Hello Patrik,
On clicking the "Air-Wall Convection" block, under Parameters, the Area is defined by the variable "wallArea" in m^2. If you look the Model Properties and navigate to the "InitFcn" under Callbacks, you can find the definition of the above said variable as follows:
% House length = 30 m
lenHouse = 30;
% House width = 10 m
widHouse = 10;
% House height = 4 m
htHouse = 4;
wallArea = 2*lenHouse*htHouse + 2*widHouse*htHouse;
This depicts that all the 4 walls have been taken into consideration in the model. In my opinion, exchange of heat through the floor is not considered and thus the floor is not taken into consideration.
I hope this clarifies your query!
