Joseph conway

Unit is set to exhaust for 65 secondsand intake for 65 seconds, working well so far and air seems fresher! Will report on any radon lowering effects after a few more days of use. It’s been running for a week cycling air in/out cycle Radon levels went from 2.3 to 1.4 in a 1500 sq/ft basement, very pleased!

Ms. Zhao

I run it continously at low setting. Ther are 6 concrete block size vents in the crawl space. The vacuum creats enough "suction" to hold toilet paper against the vent when placed on the outside of the vent.

Teacher Li

This moves air nicely through crawl space, and has kept it much less damp! The floor of my crawl space it bare granite, with a few cracks where water percolates slowly into the crawl space.

Mr. Ma

It uses 6.6kw/day, in Ontario paying Hydroone Utility Co, it costs me less that $5/month. I leave it run non-stop, and over the winter months it the only electric usage in the cabin!

Mr Li

This is a great new fan. After installation, my home is very comfortable to use. Thank you Vtronic very much.

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400-187-7998

Email:info@vtntech.com

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