<We aren't going to make a real difference to millions of homes by
treating them all the same. That is how they got the way they are in
the first place. Energy efficiency is a *local* issue. This is, I
think, exactly your point about Passivhaus (with which I heartily
agree). We can never hope to find a solution that works for everyone,
everywhere. My hope is that we *might* be able to find a *process*
which is capable of finding a solution for everyone, everywhere.><br><br><br>well put--a very good summary--thanks!<br><br>AA<br>