HOM: "normal" wall vs. ASHRAE 140 wall (and windows)
What is the problem?
In ThermalZones.HighOrder
we find for the walls and windows two approaches, which differ only slightly. One is the originally implemented approach and the other one includes changes necessary for the ASHRAE 140 test cases.
How do we want to solve it? Describe the solution you'd like
Only use one wall model.
Maybe keep both window approaches, which can be selected due to replaceable model
in the wall class.