Solution For High Heat Problem

Nizza · Jun 23, 2020

Is there a way you could actually put the 6" vent Into the tent?It looks like it is just resting on top of the tent and not tied into a "sock" hole.
Also you could re configure the piping to make it much more efficient!

Ideally you want 1-3 feet of ducting (1/3-1m) before any hard bends
Also, if you could change the exhaust to come out of that window high you could have a much straighter duct path.

I would go ahead and take any scrap peices after moving the fan and change the 4" intake into a 6"

Nizza · Jun 23, 2020

I was thinking change it to this if you could
the circles are the problem areas, also the big drop down to the floor is a problem area. I would put a piece of plywood or something on top of the tent and see if I could get it up there instead, or maybe mounted to the wall

coreywebster · Jun 23, 2020

Either put the thermometer above the light line, where the light hits the wall.
Lower where the canopy is on the wall but shaded by white card.

S&P do make good fans, but its mixed flow and some lose pressure. You should have bare minimum duct for passive intake, just enough to block light assuming that's why your using duct for intake.
You want as little duct as needed, Nizza's suggestion above would cut a lot of it out.

HotelNovember · Jun 23, 2020

djali30 said:
i run lights 19-6 Turns on at 17:00pm Turns off 12:00 next day.

19-6? Where do you live, i would love a 25 hour day.....

djali30 · Jun 23, 2020

Nizza said:
Is there a way you could actually put the 6" vent Into the tent?It looks like it is just resting on top of the tent and not tied into a "sock" hole.
Also you could re configure the piping to make it much more efficient!

Ideally you want 1-3 feet of ducting (1/3-1m) before any hard bends
Also, if you could change the exhaust to come out of that window high you could have a much straighter duct path.

I would go ahead and take any scrap peices after moving the fan and change the 4" intake into a 6"

HotelNovember said:
19-6? Where do you live, i would love a 25 hour day.....

lol its 19-5 . Cant sleep because of this issue its typo sorry.

HotelNovember · Jun 23, 2020

djali30 said:
lol its 19-5 . Cant sleep because of this issue its typo sorry.

If they're Autos then i'd suggest 18-6 light schedule. You can run 24-0 (apparently) and some studies show it's slightly better for vegetative growth. However, you're in flower and the plant needs time to do it's thing with the lights out, this will also give you 1 hour less of light (and so 1 hour less of heat to deal with). You can also flower Autos on 12-12 like a photo-period. I'm growing Autos now and will just keep a 18-6 schedule from seed to harvest

djali30 · Jun 23, 2020

Nizza said:
I was thinking change it to this if you could
the circles are the problem areas, also the big drop down to the floor is a problem area. I would put a piece of plywood or something on top of the tent and see if I could get it up there instead, or maybe mounted to the wall

I think i can put it on the tent but i will still have to bend down the pipe because i have a hole on the wall which made for gas heater pipe im using it for my exhaust fan. Do you think it will still help ?

Nizza · Jun 23, 2020

The rectangles are proposed fan locations

ok so how about this. If you cant put it vertically on the wall maybe a table to at least bring it up to the level of the hole. you could then maybe run the vent out a little behind the tent and then up and into the tent

does it have a high vent sock somewhere? It looks like it is just sitting up there.

If you don't feel like moving the fan, start with changing the intake duct to a larger size and making the duct have smooth bends, and a straight forward duct path

you could also try putting the fan on the top of the tent with this situation but it would be the same as having the bends really close to where you have the fan right now, it would just be on top of the tent at that point

Nizza · Jun 23, 2020

here is how I would do it on top of the tent

TreeFarmerCharlie · Jun 23, 2020

I would either mount that fan higher up on the wall or I would put a piece of plywood on top of the tent and screw the fan to that. All those bends and the length of hose is just adding drag and making the airflow louder.

TreeFarmerCharlie · Jun 23, 2020

Nizza said:
View attachment 4603714
here is how I would do it on top of the tent

That's how I would do it, too.

Nizza · Jun 23, 2020

TreeFarmerCharlie said:
I would either mount that fan higher up on the wall or I would put a piece of plywood on top of the tent and screw the fan to that. All those bends and the length of hose is just adding drag and making the airflow louder.

plus heat doesn't like to go down. I was hoping he could exhaust it high out of the window. Some people use a portable a/c vent that is made to go into a window and then tie the exhaust into it. People from outside will just think it is an A/c unit
https://www.amazon.com/portable-ac-window-kit/s?k=portable+ac+window+kit

Some people (me) just have a low intake and high exhaust. they vent into the room that the tent is in and then I just open/close windows as needed. It is simple and works for me but if you have the heat build up cause you forget to cracka window that can be an issue

TreeFarmerCharlie · Jun 23, 2020

Nizza said:
plus heat doesn't like to go down. I was hoping he could exhaust it high out of the window. Some people use a portable a/c vent that is made to go into a window and then tie the exhaust into it. People from outside will just think it is an A/c unit

Some people (me) just have a low intake and high exhaust. they vent into the room that the tent is in and then I just open/close windows as needed. It is simple and works for me but if you have the heat build up cause you forget to cracka window that can be an issue

Yeah, I vent into the room during the cooler/dryer months and out the window when it's hot and humid.

kmog33 · Jun 23, 2020

You also don’t really need the super long venting for the intake(?) it’s going to drastically effect whatever it is moving through it compared to just cutting it flush with the side of the tent

Moldy · Jun 23, 2020

djali30 said:
I have Soler&Palau TD350/125 for extraction runs in high speed with 600 hps cooltube and carbon filter. I didnt install an intake fan because my tent is small it was fine in the vegetative stage with mh light ,but i forgot about the season. I live in Turkey its hot in here in summer.

Off subject but I'm wondering about the laws there in Turkey. I can't get Midnight Express out of my head. Have the laws changed there recently?

Btw your plants are not showing much heat stress. Maybe it's not as hot in there as you think after you move your thermometer to a shaded place.

TreeFarmerCharlie · Jun 23, 2020

kmog33 said:
You also don’t really need the super long venting for the intake(?) it’s going to drastically effect whatever it is moving through it compared to just cutting it flush with the side of the tent View attachment 4603723

I agree. If you are worried about light getting in then just get a louvered vent cap.

djali30 · Jun 23, 2020

Nizza said:
View attachment 4603714
here is how I would do it on top of the tent

I think i got your point(hear you say at last lol) no bendings minimum pipes traveling right ?I will cut the extra pipes and design a new one and post again later. . You guys are so helpfull thank you very much.

djali30 · Jun 23, 2020

Moldy said:
Off subject but I'm wondering about the laws there in Turkey. I can't get Midnight Express out of my head. Have the laws changed there recently?

Btw your plants are not showing much heat stress. Maybe it's not as hot in there as you think after you move your thermometer to a shaded place.

Oh god what a movie. Not that tight but the same things are still illegal . Im on this forum with vpn.

TreeFarmerCharlie · Jun 23, 2020

djali30 said:
I think i got your point(hear you say at last lol) no bendings minimum pipes traveling right ?I will cut the extra pipes and design a new one and post again later. . You guys are so helpfull thank you very much.
View attachment 4603725

Yes, the less hose the better. This is what I used for my intakes (no hose needed at all for them) and you can get them in just about every common vent hose size.

Here's how mine look installed

Nizza · Jun 23, 2020

djali30 said:
I think i got your point(hear you say at last lol) no bendings minimum pipes traveling right ?I will cut the extra pipes and design a new one and post again later. . You guys are so helpfull thank you very much.
View attachment 4603725

yes this looks a little better!
could you maybe tilt that fan so it is like a 45 degree angle pointed straight into the exhaust vent?

if you did this you could eliminate that tight bend on the right and tighten/shorten up that squirrely duct on the left as well

Is the 6" exhaust vent tied right into the tent or just sitting on top? You want it tied in

Also be sure to move your temp/humidity sensor like others have said to, and upgrade that intake to a 6".
glad to help man I really hope this helps you solve the issue!

Solution For High Heat Problem

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