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I did the bathroom fan a couple of years ago but haven't yet done the range fan. Our range fan runs backwards so the factory is going to check that out when we are there in May.
I don't have any numbers but can attest that the computer fan in the bathroom draws a lot more air. I make sure to turn it off when flushing because opening the flush valve that fan will suck bad odors out of the black tank right into my face. Once was enough to learn. The fan is much, much quieter, also, as FredG attested. We've had it run for hours without realizing it was still on because the bathroom door was closed. We got a ball bearing fan since they tend to be quieter and last longer.
FredG, our range hood fan is different than the bathroom fan was. It has larger blades and they are white on ours. I may someday replace it with a quieter fan but first want the factory to figure out why it's running backwards. It sucks that outside door closed and blows air onto the stove rather than the reverse.
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