Using attic heat for the house - Page 3

Daox · 09-23-10, 08:38 AM

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).

Patrick · 09-23-10, 08:46 AM

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.

Patrick · 09-23-10, 08:48 AM

Quote:

Originally Posted by Daox

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.

Daox · 09-23-10, 09:07 AM

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?

RobertSmalls · 09-23-10, 10:03 AM

Are you going to give the air an explicit return path as well?

Patrick · 09-23-10, 10:10 AM

Quote:

Originally Posted by Daox

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.

Patrick · 09-23-10, 10:17 AM

Here's a 120V motor that you might be able to make work: https://www.surpluscenter.com/item.a...tname=electric

Patrick · 09-23-10, 10:21 AM

Here are 2 complete blowers: https://www.surpluscenter.com/item.a...tname=electric

https://www.surpluscenter.com/item.a...tname=electric

Patrick · 09-23-10, 10:25 AM

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

Daox · 09-23-10, 10:42 AM

Quote:

Originally Posted by RobertSmalls

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.

09-23-10, 08:38 AM	#21
Daox Administrator Join Date: Aug 2008 Location: Germantown, WI Posts: 5,525 Thanks: 1,162 Thanked 374 Times in 305 Posts	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). __________________ Current project - To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. & To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. Last edited by Daox; 09-23-10 at 08:41 AM..

09-23-10, 09:07 AM	#24
Daox Administrator Join Date: Aug 2008 Location: Germantown, WI Posts: 5,525 Thanks: 1,162 Thanked 374 Times in 305 Posts	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? __________________ Current project - To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. & To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

09-23-10, 08:46 AM	#22
Patrick Apprentice EcoRenovator Join Date: Jul 2010 Location: East Coast of Florida, USA Posts: 149 Thanks: 2 Thanked 5 Times in 5 Posts	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.

09-23-10, 10:03 AM	#25
RobertSmalls Journeyman EcoRenovator Join Date: May 2009 Location: Buffalo, NY Posts: 344 Thanks: 3 Thanked 17 Times in 15 Posts	Are you going to give the air an explicit return path as well?

09-23-10, 10:17 AM	#27
Patrick Apprentice EcoRenovator Join Date: Jul 2010 Location: East Coast of Florida, USA Posts: 149 Thanks: 2 Thanked 5 Times in 5 Posts	Here's a 120V motor that you might be able to make work: https://www.surpluscenter.com/item.a...tname=electric

09-23-10, 10:21 AM	#28
Patrick Apprentice EcoRenovator Join Date: Jul 2010 Location: East Coast of Florida, USA Posts: 149 Thanks: 2 Thanked 5 Times in 5 Posts	Here are 2 complete blowers: https://www.surpluscenter.com/item.a...tname=electric https://www.surpluscenter.com/item.a...tname=electric

09-23-10, 10:25 AM	#29
Patrick Apprentice EcoRenovator Join Date: Jul 2010 Location: East Coast of Florida, USA Posts: 149 Thanks: 2 Thanked 5 Times in 5 Posts	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