On 23/09/2010 08:28, harry wrote:
I have azero energy home. That one had loads of missing features.
And a big wood fire too. This defeats the object of limiting
infiltration, you have to let air in for the fire.

Not necessarily: you can buy sealed stoves that draw air in through a
duct. It's not even a new idea: growing up we had a "Baxi patent fire"
which used a duct system to draw air from the under-floor void. Very
good, it was.