3 ms·

So, then, your anecdote completely exemplifies OP's thesis: a house double the size and much more efficient uses the same energy. Vive la différence? You also

So, then, your anecdote completely exemplifies OP's thesis: a house double the size and much more efficient uses the same energy. Vive la différence? You also mention foam filling, and by proxy, sealing. Many high efficiency homes achieve their efficiency by becoming effectively Tupperware® containers. Which isn't good for the occupants (unless living in Mordor is a goal). Air exchangers are required, muting the gains on efficiency.

roel_v 11y ago
" Air exchangers are required, muting the gains on efficiency" God not this again. Active ventilation in 2015 (actually, in 2005) has heat exchangers that recoup most of the heat and do not nearly negate the efficiency advantages and improved comfort of a sufficiently air-tight house. Please review all the literature from the last 20 years which will tell you exactly this.
- maxerickson 11y ago
  The post is even a reply to a situation where the gain in efficiency is obvious.