Smell, heat, security. I read somewhere that benting theough the roof is ideal, or necessary even.
Why do you run it all the way to the roof?I vent out my window. I cut a sheet of plywood and cut a hole. My vent goes to a corner of my house and then 30 feet up to the top of my roof.![20191116_103539[1].jpg](https://www.420magazine.com/community/attachments/20191116_103539-1-jpg.2015002/ "20191116_103539[1].jpg")
![20191116_102416[1].jpg](https://www.420magazine.com/community/attachments/20191116_102416-1-jpg.2015003/ "20191116_102416[1].jpg")
3 reasons, We have a grand kid living with us, My wife doesn't want to smell it, I have enough ducting. What is funny, The condensation in the ducting was making a funny noise. Guess the fans were pushing air through water in the low spot. Poked a couple pinholes and fixed it.
Yes. Just like a cloths dryer is often vented through a basement window. You can even buy the insert for the window from the local hardware store.
Put a charcoal filter in the grow closet. Bolt on the fan or blower and have it push the air right back into the closet. If you are running the fan all the time during flowering that takes care of the smell and solves your wife's objection. Or, if you are trying to reduce the heat inside the closet then vent back into the basement room or the basement itself.
I had some plywood laying around so cut it, No need for charcoal filter, It runs out the roof top area. Fan does not run all the time. Only kicks in when heat rises to a set point then kicks off. I suspect the water is condensation forming in the low point of the ducting. When humidity rises a dehumidifier kicks on but moist air will exhaust when extractor fans kick in. Keep in mind I do have some 40 feet of ducting. Wife even said the neighbours will smell it and phone the police. I said OK. Let them. The police are going to ask how many plants and they will say we don't know. Then the police will say when you know call us back. Here in BC. Canada we can legally grow 4 so long as they are out of sight. Told the wife if she wants her smoke then the price is 200 an ounce or free if she puts up with a smell for 2 months per year in the winter. It's not like she is cutting the lawn or picking blueberries or doing any yard work this time of year.
I know I get it but it's more to do with our location and the humidity we have. We are 7 miles from the USA and I can just barely see the Pacific ocean from our sundeck. As the plants mature they tend to create more humidity in the tent. I can feel it when I unzip the tent. The fans send humid air out the ducting. Probably wouldn't have the issue in summer with dew temps
I have a large garage utility rm. I cut a hole in the ceiling. Gable ends sealed have a ridge vent. Hot air rises. Easy peasy. Also, weather-stripped entry door does a decent job as long as you don't open the storm door to fast and then you have to know what you get a whiff of.
Oh...I just took measurements yesterday, so the absolute beginning. 31 inches x 62 x 87;
I don't know but figure that it is how well the house is sealed up to minimize exchanging hot air into the outside and bringing in cold air during the winter and exchanging cooled off air into the outside and bringing in hot air in the summer. Why spend the money to heat or cool it and then blow it outside and bring back more air that has to be heated or cooled.
For the most part, probably not but I see @TurboBucket covered these first two points.
One pass through a filter. Based on reading articles in the newspapers and on-line it is what most commercial operations call the discharge of smoke or smells from their buildings, furnaces, boiler operations. Removing smoke particles from burning fuels to power equipment or burning trash in an incinerator.
Yep. The charcoal or carbon filter removes the smells. Bonus would be to pull the air into the filter and then have the blower push it out. Put a filter sleeve on the charcoal cannister and that would also pick up some of the dust and small dirt particles and remove them.
Couple of "S" turns in a few feet of flexible ducting but it might not be necessary if there is a charcoal filter along the way. The filter would block the light.
