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Old 10-17-10, 10:30 PM   #4
strider3700
Master EcoRenovator
 
Join Date: Dec 2008
Location: Vancouver Island BC
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I posted the pictures of my solatube install in a different thread here. that is the smallest sized tube I could buy a 10". They go up to 18" that I've seen in stores locally. a little rough math suggests that the 18" will let in 3 times as much light as my 10". My old house had a 12" I believe in the kitchen and it was blinding to look at directly on a sunny day.

Basically my point is I seriously doubt you would need something like this in a residential house. Maybe a large commercial store would see pay back but at home you never would.
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