What did you use to get those measurements?I just finished a jumper duct with an in-line duct fan to address CO2 buildup in primary bedroom without a return vent. It did have a wide under door cutout, but that didn’t help much. See results graph.
CO2 is even worse in milder weather (less HVAC activity). Just running the HVAC on circulate (without the jumper) helped but not as much and wasn’t energy efficient in my case. YMMV.
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Statistics: Posted by ScubaHogg — Tue Mar 12, 2024 7:06 am — Replies 27 — Views 2417
