![Active Ventilation Box is 17 in. Wide x 17 in. Long x 12 in. High Aluminum Roof Curb RC-14-H12 - The Home Depot Active Ventilation Box is 17 in. Wide x 17 in. Long x 12 in. High Aluminum Roof Curb RC-14-H12 - The Home Depot](https://images.thdstatic.com/productImages/23d47e4c-5688-44a0-9160-f5e7012000c4/svn/active-ventilation-rooftop-venting-rc-14-h12-76_600.jpg)
Active Ventilation Box is 17 in. Wide x 17 in. Long x 12 in. High Aluminum Roof Curb RC-14-H12 - The Home Depot
![Looking to create a simple passive test cell with NO Mechanical Ventilation - ladybug-tools - Ladybug Tools | Forum Looking to create a simple passive test cell with NO Mechanical Ventilation - ladybug-tools - Ladybug Tools | Forum](https://discourse.ladybug.tools/uploads/default/original/3X/3/b/3b401e23424e93c74629db147117901ceb4f1490.png)
Looking to create a simple passive test cell with NO Mechanical Ventilation - ladybug-tools - Ladybug Tools | Forum
![Is this a safe ventilation setup? I live in an apartment and don't have many options for ventilation. Planning on running this several hours per day. The vent goes directly outside. That's Is this a safe ventilation setup? I live in an apartment and don't have many options for ventilation. Planning on running this several hours per day. The vent goes directly outside. That's](https://preview.redd.it/is-this-a-safe-ventilation-setup-i-live-in-an-apartment-and-v0-7fq58vobf8b91.jpg?width=640&crop=smart&auto=webp&s=efe07f7b0feddb63a72bb487f74a776f64319d1f)
Is this a safe ventilation setup? I live in an apartment and don't have many options for ventilation. Planning on running this several hours per day. The vent goes directly outside. That's
![Litter box ventilation system UPDATE. Build complete, still looking for a 16.75x7” fixed louver. : r/hvacadvice Litter box ventilation system UPDATE. Build complete, still looking for a 16.75x7” fixed louver. : r/hvacadvice](https://preview.redd.it/litter-box-ventilation-system-update-build-complete-still-v0-7nd1cnsqrw6a1.jpg?width=640&crop=smart&auto=webp&s=47707d214392887a5005e5adec906dad3716cc92)