Anyone out there have experience with battery bank ventilation in a tight house?
We're building a PGH in Climate Zone 4A. It's designed for net-zero, so we'll have a 6 kW grid-tied PV system. It will also have islanding capability (provided by a dedicated inverter and 12 kVA battery bank).
Based on a rough blower door test we are < 0.6 ACH50.
The battery bank will sit in the basement, which is conditioned space. I want to make sure we are venting the battery box in a safe and effective manner. As I see the issue:
It must vent hydrogen gas effectively
It must not backdraft