4 ms·
That's what we did. Our house was built in 1916, but the weather sealing we've done combined with six people breathing in it led to quite high CO2 levels. We ha
by organsnyder 2y ago
That's what we did. Our house was built in 1916, but the weather sealing we've done combined with six people breathing in it led to quite high CO2 levels. We have a traditional ducted air conditioning system in the attic (heat is hot water radiant), and added the ERV there. It made a massive difference.
- ericd 2y agoYeah, same here on most counts, even going down to 3 ACH on the blower door test made CO2 levels pretty high, now they’re barely above outdoor.