Go Back   DIY Chatroom Home Improvement Forum > DIY Repair > Project Showcase

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 11-29-2009, 08:25 AM   #16
Member
 
Join Date: Nov 2009
Location: central virginia mountains
Posts: 1,857
Share |
Default

Solar Air Heater


thanks justgreen much easier to see and thanks dave. it appears to me the one in daves is equipped to close at nite to stop warm air from leaving house and unless you have thermal mass in the heater I'm thinking thats needed thats why I was asking about being able to close house window sash which I did'nt see in your design. thanks timothy

tpolk is offline   Reply With Quote
Old 12-11-2009, 01:27 PM   #17
Newbie
 
Join Date: Nov 2009
Location: Columbus, Ohio
Posts: 15
Default

Solar Air Heater


Well, its 30 degrees and sunny today. The solar air heater is kicking out 85 degree air.
justgreenhomes is offline   Reply With Quote
Old 12-11-2009, 02:39 PM   #18
Member
 
Join Date: Jul 2008
Location: NW of D.C.
Posts: 5,990
Default

Solar Air Heater


Anybody make one of these disguised to look like dark window shutters, for a retrofit?

One on each side of each southern-facing window would have the necessary sq. footage, and with the slats at a 30 angle, depending on your latitude, they might do quite well. You'd then need interior vents.

Last edited by Yoyizit; 12-11-2009 at 02:41 PM.
Yoyizit is offline   Reply With Quote
Old 12-11-2009, 02:45 PM   #19
Newbie
 
Join Date: Nov 2009
Location: Columbus, Ohio
Posts: 15
Default

Solar Air Heater


Yoyizit - Interesting idea. I'll have to put that on my todo list.
justgreenhomes is offline   Reply With Quote
Old 12-17-2009, 03:33 PM   #20
Member
 
Join Date: Mar 2007
Location: Long Island, NY
Posts: 9,519
Default

Solar Air Heater


I wonder if you can do that(solar heating) to a brick house. Cut through the interior wall to the 1" space between the sheathing and the brick and use the upward convection in the space to draw heat from the brick. Maybe add a fan to pull the heat out of the space.
The brick is like a heat sponge in the summer so it might work. I need to drill a few small holes and insert a thermometer to see how warm it is.
Ron
Ron6519 is offline   Reply With Quote
Old 12-17-2009, 03:41 PM   #21
Member
 
Join Date: Jul 2008
Location: NW of D.C.
Posts: 5,990
Default

Solar Air Heater


Quote:
Originally Posted by Ron6519 View Post
I wonder if you can do that(solar heating) to a brick house. Cut through the interior wall to the 1" space between the sheathing and the brick and use the upward convection in the space to draw heat from the brick. Maybe add a fan to pull the heat out of the space.
The brick is like a heat sponge in the summer so it might work. I need to drill a few small holes and insert a thermometer to see how warm it is.
Ron
Heat Capacity brick = 900 Jkg-1K-1 Heat capacity stone = 800-900 Jkg-1K-1
You'd also need to know how well the surface of the brick absorbs sunlight; an emissivity hopefully close to 1.0.
Yoyizit is offline   Reply With Quote
Old 12-17-2009, 04:04 PM   #22
Member
 
Join Date: Jan 2009
Location: South of Boston, MA
Posts: 17,248
Default

Solar Air Heater


They actually use walls of stone etc as a thermal mass to capture & store heat behind a glass wall

Called a trombe wall:

Scuba_Dave is offline   Reply With Quote
Old 12-17-2009, 09:55 PM   #23
Newbie
 
Join Date: Nov 2009
Location: Columbus, Ohio
Posts: 15
Default

Solar Air Heater


Trombe walls work even better if there is no insulation between the thermal mass and the inside of the house, and if insulation can be placed on the outside of the glass at night.
justgreenhomes is offline   Reply With Quote
Old 12-18-2009, 09:14 AM   #24
Fixer-'til-broker
 
DIYtestdummy's Avatar
 
Join Date: Jan 2008
Location: Arizona
Posts: 358
Default

Solar Air Heater


I've been kicking this idea around for 2 years now (our home anniversary was 12/17). The only obstacles are:

1. I have side-opening windows

2. Wife would rather crank up the heater than have anything "ugly" in the windows.



The trombe wall or a water wall would be great for my south wall made entirely of brick and no windows, but the summers here are blistering hot! I would have planted a green wall or built an "adjustible" pergola, but still have to match the sun's patterns and wait for the neighbor to decide on our party wall.

__________________
"Aw! Why does everything that only happens to stupid people happens to me?" - Homer J. Simpson
DIYtestdummy is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Solar Hot Water Heater DangerMouse Plumbing 41 01-03-2012 04:53 AM
Periodic release from (I think) the T&P valve on the water heater alexz Plumbing 3 08-15-2006 10:31 AM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.