Hey there, So I have a number of questions related to my enviroment which I will try and number to make it easier. Ok so my plan is a 1kw parabolc in a 1.2 x 1.2 x 2.2 metre tent (green qube). Using DWC ( 2 100litre coolers) and SMS Hybrid controller. Now my original plan was to get an 8" RVK L1 so I could upgrade in future if neccessary. However I have been advised that it is too big for tent my size even on controller. I read that a fan shouldnt be turned below 40% and was told that an 8" would be, especially in winter. This will cause it to burn out. So I have a number of options. There is a vent in the bedroom where the chimney was (fireplace was taken out recently as we got the whole house plastered and vent is now there instead). I can intake from the fireplace and extract into the room or else extract through the fireplace. This is a close family members house so I cant do anything major. Beneath the vent the hole is about 7 inches long and 3 to four inches high. Now this doesnt fit the 6" or 8" ducting. 1. Can I cut through this plasterboard to make it bigger (under the vent it is just plaster board and hasnt been skimmed over like the rest of the wall)? 2. Will intaking through the fireplace bring in nasties (even with bug catcher over it)? Will it be stale air? 3. I can extract through the chimney and intake from the room. Also I could possibly put black out lining on the window in the the room with net curtains in front of it fro summer. Cut a hole and attach spigot to the black out lining as a fresh air intake. Issue with this is I would prefer not to keep the window open all the time and im afraid that houses across the way (20 feet) might see that it doesnt look right. 4. Will extracting through the chimney cause lots of condensation in winter time due to hot air meeting cold. Im afraid of water streaming down the chimney as it isnt my house. Chimeny isnt shared with neighbours im pretty sure. I have heard people mentioning dryer vents not sure exactly what they are or how they work. Have found some on ebay i think but only 4". I think this might work. Its a condensation trap. (Description: 10mm, 125mm and 150mm Condensation Traps, for fitting in vertical rigid PVCu pipe ducting. Must be used where pipe ducts pass through unheated roof voids. Fitted with 20mm pipe connection for running off condensate. Not suitable for use with flexible ducting.) I know it says not useable for flex ducting but im sure i could fashion something. http://www.vent-axia.com/range/condensation-trap.html 4. What size extraction/intake is needed for a 1kw. I want to dial it down with a controller to make it alot more quiet. I was hoping a 6" RVK L1 (Ruck Rvk 150 - L1 = 715 m3) would be enough but have been advised it might not be enough to even properly extract the heat, never mind dial it down. So I can get an intake no problem. Should I get the 6 inch A1 (Ruck Rvk 150 - A1 = 470 m3) for intake? Would that be correct and would it be enough to dial it down but not be too much so that it will be dialled down too much during winter etc? I could get the 8" RVK (1000 cfm) but i wont have the height for it or the filter in the tent i reckon so id need to vent into the room im in. Think thats all for now anyway. Cheers for any replies. Ill like all comments too :-)

hey guys, my pals got a 150cm x 300cm tent and 2 1000w gavita de lights, he has a 12" isomax out take and a 10" isomax intake both hooked up tp hybrid fan controller. He is currently pumping out the window but is a bit worried about how it would look on a thermal camera. the room he is in has a air brick that leads to a chimney he could pump his hot air out from but the chimney may or may not be connected to the neighbours but he obviously has no way to find out... so my questions are: Is it dodgey to pump your extract out the window? are semiditached houses share chimney? and if so will anything bad happen if he vents out through it? thanks for your help in advanced FC

Hi. First time poster/grower here, doing preliminary research before my venture into the wonderful world of home grown highs. In the process of building a growdrobe 3'x3'x7' and have exhaust and venting questions. The unit is in the front room of my house, which has an electric fire that's in the process of being removed. My question is; would the chimney be a suitable source of fresh air for the inline intake fan I plan to install? Or does the chimney have a more pull/suck attitude that could interfere with intake? Doing a search on chimney/intake lead to 'no don't...carbon monoxide/harmful gasses etc, but I would assume that's from used chimneys (I.e attic grows) Does anyone have experience in this? I originally had the chimney pegged as 'outtake' as it seemed obvious but fresh air is more important (or so I'm reading) Thanks