ralph12345
2010-05-11 17:54:47
- #1
Where do you read that from? I have read through the Energy Saving Ordinance 2009; it does say how ventilation can be credited towards energy demand requirements and how the ventilation is to be carried out if there is one. But that a ventilation system MUST be installed, I cannot see. A § with paragraph and quotation would be helpful.Hello, it depends on the insulation values of the new building and how airtight it is. When entering the passive house range, a controlled residential ventilation system is indispensable. Moreover, according to the new Energy Saving Ordinance, a controlled residential ventilation system is mandatory