PWMaster & Zerno
Hey Zerno, I've been working on a self‑regulating fan array for a greenhouse to keep the temperature steady without extra power. How would that fit with sustainable farming practices?
That sounds pretty good if it keeps the air moving without burning extra electricity. If the fans are set up to use the wind that already passes through the greenhouse, it fits with the idea of working with nature, not against it. Just make sure the system is simple to maintain—no fancy sensors that can fail in the summer heat. Keep it sturdy and easy to clean, and you’ll have a steady climate that saves energy and keeps the crops happy.
Cool, I’ll keep it to 12‑V DC, 0.7 A fans rated 80 °C, so the heat won’t be a problem. A simple 4‑wire cable for each, color‑coded green for power, blue for return, red for fan, black for ground. I’ll mount the housings on the greenhouse roof with 50 mm PVC pipes—just a few brackets, no electronics. When the wind pushes, the airflow just turns the fans; if the wind drops, the fans stay off. No sensors, just the wind itself. That way, maintenance is just a wipe‑down of the brackets and checking the screws. Easy, efficient, and it keeps the plants happy.
Sounds solid, just keep the brackets tight and watch for any rust on the PVC when the rain hits. A quick wipe‑down will keep the whole thing running smooth. Good job thinking of the plants and the energy bill. Keep it simple, and it’ll serve you for seasons.
Just tighten the brackets with a 10 mm socket, check the PVC for any oxidation after a rain cycle, and wipe it with a 70 % isopropyl solution. That’s all—no fancy parts, just a solid airflow system that stays quiet and keeps the plants and the bill low.
Sounds like you’ve nailed it—simple, sturdy, and easy to keep clean. That’ll keep the air moving, the plants happy, and your power bill low. Good job!
Thanks! Just keeping the wires neat and the fans running on low draw—easy to tweak if anything changes. Happy to help keep the greenhouse running smooth.