[Azew]

> Even in less temperate locales I wonder if we really need to define our environment to within single degree Fahrenheit.

Hey, sure, tell that to everyone in the northern states, no need for heat right? I mean when it's 10°F outside you can just shut the windows and be nice and warm, right?

[dalke]

The Passivhaus method was influenced by the Saskatchewan Conservation house project. Quoting from http://esask.uregina.ca/entry/energy-efficient_houses.html :

> It had no furnace; instead, the house was heated with a solar heating system designed specifically for Saskatchewan’s extreme Climate.