The Orchid Doctor Articles under the Heading Ventilation

Ventilation Comments
VENTILATION: Exhausting Hot Air From the Greenhouse Peak Install a turbine generator as high as possible with a small fan under it blowing straight up; refer to A83-52 0
VENTILATION: Rate of Exchange On hot days the greenhouse needs one change of air per minute by exhaust fans. A78-606 0
VENTILATION: Size of the Vents They should be at least 10% of the roof area as a minimum. RMH 0
VENTILATION: With Solar Energy A solar chimney draws air vertically out of the greenhouse without machinery; build a flue out of three/eighths inch exterior plywood; for diagram, materials, method of operation; refer to OD88-30 0
VENTILATORS: Non Electric Self-automated ventilator units are moved by a heat-expandible mechanism, they need no electricity and are useful in case of electricity failure; some growers use them only. Ca85(l)-10 0

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  1. Mary Lane asked question Orchid roots .com site? in category General Discussion
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  1. Kevin Bergeson commented on member plant Paph. rothschildianum by Kevin Bergeson
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  3. Carol Holdren commented on topic "recently purchased orchid shows unstoppable roots " by David George
  4. Michael Makio commented on orchid V. Beatrice Makio
  5. Carol Holdren commented on topic "shorter stem with less vigorous blooms" by katherine mott
  6. Carol Holdren commented on topic "need info on yellow bird" by Glenda Ratliff
  7. Carol Holdren commented on topic "Looking to join an orchid club." by Paula Milano
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