Flipping Air – 16,000 cubic feet

Commercial greenhouses have enough ventilation to flip the air in 1 min. This greenhouse is 16,000 cubic feet.
* Out Fan rated at 7K cfm
* In fan is repurposed attic fan
* Shaded in summer – so full turnover not needed
* dual fan system
in fan creates positive pressure to push heat into living space
Out fan creates vacuum to exhaust heat & pull in through ground tubes
Together full control of air space turnover:
* out only – pulls fresh air into living space @ ambient ground temp
* in only – pushes hot air from GH into living space & living space air out thru ground tubes
* both – wind tunnel in greenhouse

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