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Seems quite with good air flow. Easy to install but required a rotary hammer and bit to mount. You may require an electrician to do the plug and power requirements. Not sure if the humidity has been lowered, so far the fan has not shut down..
Verified purchase: Yes | Condition: New
The units are noisy, high pitched whining noise and they move very little air. I guess I should have read the specs more carefully before buying them. 220 CFM is about the same amount of air I breath in 1 minute. They're well made, it's not a quality issue, they just don't have any power - they basically look like cooling fans from a PC!! To actually ventilate my crawl space in any meaningful way, I'm going to have to ditch these little things and get a real fan, adding a humidity controller to it.
Verified purchase: Yes | Condition: Pre-owned
I received the fan promptly. I tested the fans settings with my humidistat and thermometer. I found that it responds exactly as described. I install the fan and seal all vents except two vents on the sunny side of the house. It works perfectly. Humidity dropped 12% and maintains now at 54%. I couldn’t be more pleased with the product. I’ve finally found the answer to my crawl space dilemma. **** I will add that I installed solar vents and installed a 10 mil vapor barrier before ordering the fan.
Verified purchase: Yes | Condition: New
got them on time easy to install waiting to see if they do the job so far a very good product
Verified purchase: Yes | Condition: New
I bought this to help with the humility in my basement. In just a short time the difference was amazing and well worth the purchase price.
Verified purchase: Yes | Condition: New
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