Basically doubled would be what some folks would call a statistic.
Crap you found via Google -- so likely crap I could find if I cared enough to bother to look. And you didn't bother to do pull quotes to support your position.
Color me unimpressed and unswayed. In my experience, good passive solar design makes for more human comfort, not less, than our modern tendency to build crappy cardboard boxes and tack on HVAC.
Source: I have been living without AC in the US for some years now. I've spent more than four years now living in old buildings and it's such a shame we just don't build them like we used to. Life is better if you can achieve a comfortable temperature most of the time without AC.
Crap you found via Google -- so likely crap I could find if I cared enough to bother to look. And you didn't bother to do pull quotes to support your position.
Color me unimpressed and unswayed. In my experience, good passive solar design makes for more human comfort, not less, than our modern tendency to build crappy cardboard boxes and tack on HVAC.
Source: I have been living without AC in the US for some years now. I've spent more than four years now living in old buildings and it's such a shame we just don't build them like we used to. Life is better if you can achieve a comfortable temperature most of the time without AC.