oh sorry CO alarm everybody is a carbon monoxide alarm,

. . . .why would i have to worry about carbon monoxide???

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What else is using the chimney?

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The Temporary Relief Assistant Trailer Park Supervisor. Carmelisous Jornl :: ElecUsageCostsCalc (now with carbon footprint) :: FloroTubeCompendium ::

Maybe I'm stoned but i don't know what you mean. Like a fireplace?

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Dont vent into your attic it will create mold and dry ice mold removal cost $$$ I do that for a living so I know

Dudes for small grows.... just buy a carbon air scrubber thats designed to sit in place..... pull the smell out of the air.... and return clean air........ and if you need to get a dehumidifier. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=350240379043

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MY Clones direct Grow http://www.rollitup.org/grow-journal...-pre-98-a.html

Also, if you are venting outside dont forget that the air that is being thrown outside needs to be replaced somehow, through another vent, cracked window, etc. Especially if you are in a newer home (more airtight).

dude ur venting 1 400 watt light already in a cool tube u dont have anything to worry about, i mean sure if it was like 4+ 1000 watt lights , but 400 watt light with a fan on it isnt going to produce that much heat if any especially with the fan ur using.... u are all good set it up and i would be very suprised if u would come back here and tell me the air is HOT.. the heat from 1 400 watt hps is eqivelant to like having a george forman gril would u put the goerge forman grill into a cool tube and vent it out of the fear a helicopter is going to pass ur place and think ur growing..... cmon ur good as GOLD!!!!

either way intersting thread i will be doing the same in about 1 month but im putting together 6 lights and venting through the chimney where my furnace and water tanks are venting through and im not concerned at all, i even have a family of cops 2 doors down LOL!!!!!

yeah, fireplace, furnace, hot water heater, etc.

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The Temporary Relief Assistant Trailer Park Supervisor. Carmelisous Jornl :: ElecUsageCostsCalc (now with carbon footprint) :: FloroTubeCompendium ::

just vent through your attic...

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No No No......venting the humidity/moisture to your attic is not a good idea......I remove mold from Attics with Dry ice.

In most cases you will create an atmosphere where mold can live and breed...especially in the winter months.

When I'm giving an estimate....I can tell when someone has been venting through their attic or if they have had a leaky roof

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MY Clones direct Grow http://www.rollitup.org/grow-journal...-pre-98-a.html

( IMHO ) At the point of release into the outside air there will def still be a noticable diff in the color on the flir between the escaping "warm" ( lets call it ) air and the cold wintrer air.. Even w/ "35-40 ft of bricks..