HELP WITH FAN FOR GROW CUPBOARD

Hi I just need a little help with extraction system for my grow cupboard it's 85x85x200 cm and I am using a 600 watt hps light what m3/h would i get would a 298m3/h be enough to pull the air out through a filter?

Think that light might be a bit big for your grow area your probably better with a 400, that 600 will put out a lot of heat in that space you need a rvk125 or a 150 if you must use the 600 but I'm not sure if that would sort your heat issues especially with summer coming

Could I have 2 fans pulling out would that work?

You would have negative air movement you need to get 1 blowing cool fresh air in and a bigger one extracting the air out then you might get away with it if I was you I would have the light on at night when the temperature drops

OK thanks I am new to growing lol I just need to get a fan as I am on a budget and my plants are a week in to veg I am using cfls at the moment but I want to get it under the hps asap would the fan u recommended do the job?

Yeah I have a 1.2x1.2x200 space and the temp is about 28c and I have the rvk 125 but with your space I would go for the 150

Would a a1 rvk125 @ 420m3/h do it or thel1 rvk125 @600m3/h
What do you think

Depends what your budget is if you get the 125 and it doesn't work then you will have to get the 150 but if you already have the 150 you don't have to spend anymore think it's only about 25 quid difference

OK thanks

wullie23 said:

OK thanks

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No worries mate hope it all works out for you

Me to lol