Help sealing light hoods
- Thread starter mariman
- Start date
G
guest3854
weather strip comes with tha vent kits . never used it though
G
Guest
If you have enough Suck the small amount of space is not a problem to consider IMHO. What's the wattage of the light and the CFM rating on your extraction fan? Are you dumping the smelly hot air into a filter or pulling through one?
Last edited:
mariman
Member
Two 1000w and one 412cfm, not using a filter, ducting from outside of room leading to outside of room. Sealed room. Co2 and humidity control. Air conditioner to control temps.
The last grow, during flowering, there was a noticeable amount of smell from the exhausted air. I noticed that where the gap is where the glass slides into the hood there was suction, obviously air being pulled from inside the room. So, all I had on hand at the time was some expanding foam that did the trick. But, this was messy, a pain to clean up, and blocked a bit of light.
So, I thought maybe someone on this forum may have had experience with this before and figured out how to seal the gap with a temporary sealer. If not then I think I will go ahead with the cooltubes that so many people seem to like. They do seem a lot more efficient.
Thanks
M
The last grow, during flowering, there was a noticeable amount of smell from the exhausted air. I noticed that where the gap is where the glass slides into the hood there was suction, obviously air being pulled from inside the room. So, all I had on hand at the time was some expanding foam that did the trick. But, this was messy, a pain to clean up, and blocked a bit of light.
So, I thought maybe someone on this forum may have had experience with this before and figured out how to seal the gap with a temporary sealer. If not then I think I will go ahead with the cooltubes that so many people seem to like. They do seem a lot more efficient.
Thanks
M
G
Guest
mariman...
A good option is the foil tape that's made for heating ducts. You can get this at Homer Depot..or a possibly a good hardware store. This isn't "duct tape", it's an adhesive foil tape...and it sticks very well to metals...etc. A strip of this across the gap will seal the air out.
The other option...is to have a seperate (inline is easiest) fan for the lights...ventilating from an outside intake...to an outside exhaust...BLOWING THROUGH the lights and out. By pushing the air rather than sucking it...you won't pick up any smell from the garden.
good luck
d
A good option is the foil tape that's made for heating ducts. You can get this at Homer Depot..or a possibly a good hardware store. This isn't "duct tape", it's an adhesive foil tape...and it sticks very well to metals...etc. A strip of this across the gap will seal the air out.
The other option...is to have a seperate (inline is easiest) fan for the lights...ventilating from an outside intake...to an outside exhaust...BLOWING THROUGH the lights and out. By pushing the air rather than sucking it...you won't pick up any smell from the garden.
good luck
d
G
Guest
I agree with durga, I have 2 600hps with cool sun hoods and I don't seal the glass. I run 2 80 cfm fans- one pushing at the vent inlet and the other pulling from the outlet and it neutralizes any pressure. If there is any leakage it is very minimal and not noticable.
G
Guest
This is what i did but i will warn you. Once you put that tape on there it will not want to come off after it gets heated up and cooled down. Some of the tape tore the coating off my hooddurga said:
G
Guest
The foil tape I have lets go of metal when it gets warm, so there must be different types of adhesive on different brands of the tape.
