Posted By: j.neffit would appear that your two simulations (with and without VCL) used different indoor conditions:
for "no VCL" the internal temperature range is 20 to 28 °C, for "Intello" it is -5 to 40 °C. Similarly large differences apply to the relative humidity ranges.

You're right - I've made an error there. It's evident that the models with the VCLs used the external environment on the inside too, totally invalidating those results.

So maybe adding a VCL would have been useful after all, but too late to add one now...

Posted By: djhAre the black-and-white mm/h scales rainfall rates? And if so is it indicating 100 mm/hr?

The scale does go up to 100mm/hr, but when it's 'raining' in the model the quantity only flickers at the bottom end of the scale, never the top. I guess it has to model conditions worldwide.

Posted By: j.neffThe Passivhaus Planning Package (PHPP) VENTILATION worksheet provides "Average interior humidity during winter operation" figures for a given regional climate, building and occupancy. Although this is mainly to check that humidity does not go to low in particularly cold and dry areas, would this suffice for what you are looking for ?

If it comes from them then it's likely to be robust data so certainly could be useful; too late for my project, but it could be a good tip for others. My 2007 version contains no mention of interior humidity, but that was version 3 and it's now up to 9.6, so it must have been one of the many additions.