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Old 09-23-10, 08:38 AM   #21
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Run it down the chimney? I'm not sure what you mean.

I originally planned to just set the box fan on top of the chimney blowing down. The problem is that the chimney is much smaller than the box fan. So, I need a smaller fan. Since I need a different fan I figured I'd switch to one that would work better as well (squirrel cage, thx for confirming my suspicion).

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Last edited by Daox; 09-23-10 at 08:41 AM..
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Old 09-23-10, 08:46 AM   #22
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It might too high velocity for this application, but if you've got a leaf blower you could try setting it up with the discharge down the chimney.
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Old 09-23-10, 08:48 AM   #23
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Quote:
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Run it down the chimney? I'm not sure what you mean.
Set the blower up in the attic so that the discharge blows down the chimney.
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Old 09-23-10, 09:07 AM   #24
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Thats a good idea. I was thinking a car blower would probably work decent. Possibly a furnace blower, but run at a lower speed. Can you simply disconnect 1 leg of the 110V an an AC motor?
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Old 09-23-10, 10:03 AM   #25
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Are you going to give the air an explicit return path as well?
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Old 09-23-10, 10:10 AM   #26
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Quote:
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Thats a good idea. I was thinking a car blower would probably work decent. Possibly a furnace blower, but run at a lower speed. Can you simply disconnect 1 leg of the 110V an an AC motor?
If you use a car blower you can power it with PV panels.

I don't know about disconnecting one leg of 220. I think they make similar motors in 120V, though.
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Old 09-23-10, 10:17 AM   #27
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Here's a 120V motor that you might be able to make work: https://www.surpluscenter.com/item.a...tname=electric
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Old 09-23-10, 10:21 AM   #28
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Here are 2 complete blowers: https://www.surpluscenter.com/item.a...tname=electric

https://www.surpluscenter.com/item.a...tname=electric
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Old 09-23-10, 10:25 AM   #29
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Here's a cheap one if you don't want to invest a lot of money for a test: https://www.surpluscenter.com/item.a...tname=electric
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Old 09-23-10, 10:42 AM   #30
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Quote:
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Are you going to give the air an explicit return path as well?
Thats a good idea. I have thought of it but currently am not planning on using one. Unfortunately, the house is fairly leaky so there is no lack of places for the air to leak out of the house.

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