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cdfortin_gw

forced ventilation... a newbie

Cdfortin
19 years ago

Hi ~ as you may know from previous posts I am building a large terrarium/orchidarium that measures 5 feet long, 3 feet high, and 2 ½ feet deep, totaling 37.5 cubic feet.

3 walls are made from plywood, the top is screen/glass, and the front wall is plexiglass. There is a ½ inch gap under the front plexi to prevent fogging. There are 440 watts of compact fluorescent lighting.

Obviously, due to size, heat, and humidity (auto misting system), I need some forced ventilation. I was thinking one fan on the upper part of each side wallÂ

I really donÂt know anything about this topic. What is CFM? What level of CFM do I need? How would any of yaÂll go about ventilating this system?

Also, what exact stores can I by these fans from at a good price? The only ones I can find are usually around 30 bucksÂdoes anyone know of any deals?

Thanks in advance for all your help!

Dan

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