I have a similar unit installed and manage it with HomeAssistant. One temp/humidity sensor (zigbee) crawlspace and one on the deck for outside. Using a smart plug, and HomeAssistant, I have an automation that says if the humidity is higher in the crawlspace than it is outside, turn on fan, I . Once the two are the same it cuts off. .It only runs if outside temp is over 35. and outside humidity is greater than 40, but not greater than 60 With homeAssistant you can write the automation to do whatever you want. I try to keep the humitity between 40 and 60 percent, when possible. it's not going to prevent occasional excessive humidity, but reduces the time the humidity is outside the norms, I had a dehumidifier and it seemed like more trouble/power than it was worth. No matter what, humidity will enter the crawlspace.
Tjernlund 2-Fan Crawl Space Air Supply Fan, Model# CS2
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$219.99
- Installs on inside or outside passive crawl space vent openings or mounts to floor joists
- Includes paintable, heavy-duty galvanized steel mounting plate and freeze protection thermostat that opens at 40°F
- Dual fan design delivers 220 CFM air delivery
- Works with Tjernlund UnderAire™ crawl space ventilators, Items# 250744, 250745 and 250746 (sold separately)
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Specifications
Specifications
Tjernlund 2-Fan Crawl Space Air Supply Fan, Model# CS2
Tjernlund Sidewall Radon Mitigation System Fan, Model# RMS160
Tjernlund Crawl Space Air Supply Fan, Model# CS1
Tjernlund Products Xchanger Reversible Ventilator Basement Fans, Model# X2D
Air Delivery
Same
220 cfm
160 cfm
110 cfm
180 cfm
Outdoor Rated
Same
No
No
No
No
Volts
Same
120
120
120
120
Watts
Same
40
50
20
40
Speeds (qty.)
Same
1
-
1
1
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