For an A+++ energy rated house, you can't have holes in walls where I live. That means you can't have cooker extractors that extract, you can only have them run the air through a filter. But this is really silly, because a major 'exhaust' is water vapor, which filters don't help with. A more humid house is bad for many reasons, and often results in people opening windows anyway. Yes, an A+++ house also requires air refreshing with energy recovery, but it takes ages to get that sort of humidity out that way. Running an airco just for dehumidification is also expensive.
It's short sighted imho. The extractor is precisely the right place to just move air out for all kinds of health reasons, maybe someone should work on one that recaptures some of the heat (that would also make sense!); I have not yet seen one.
It's short sighted imho. The extractor is precisely the right place to just move air out for all kinds of health reasons, maybe someone should work on one that recaptures some of the heat (that would also make sense!); I have not yet seen one.