Air Sealed the house

[Piotrsko]

Um, nope, was wondering when you were going to mention the heat exchanger and dehumidifier wasn't going to give that away free. Btdtmo.

Old timers realized you couldn't get the sealing efficiencies you have today, the stuff required wasn't available.

[aerohead]

Dan Fetti, a local , energy-efficient home builder has used this Mitsubishi product.https://www.mitsubishielectric.com.a...eat-exchanger/

[cRiPpLe_rOoStEr]

Originally Posted by JRMichler

An airtight home needs mechanical ventilation, which is normally combined with a heat exchanger to make an HRV: Heat Recovery Ventilator.

I remember seeing some louvered windows being used to allow a controlled air flow even through some airtight homes or offices. Sure sometimes mechanical ventilation is unavoidable for a more effective result...