Half a croissant, on a plate, with a sign in front of it saying '50c'
h a l f b a k e r y
Viva los semi-panaderos!

idea: add, search, annotate, link, view, overview, recent, by name, random

meta: news, help, about, links, report a problem

account: browse anonymously, or get an account and write.

user:
pass:
register,


         

Reversible Ventilation

 One Vent in the Ceiling, One in the Floor
  (+2)
(+2) 		  [vote for,
against]

In summer, the floor vent blows upward, while the ceiling vent lets out hot air. In winter, the ceiling vent blows downward, and the floor vent lets out cold air.
—galukalock, Jun 13 2003

Smart window fan http://www.halfbake...mart_20window_20fan
Same idea for external air. [phoenix, Oct 21 2004]

Please log in.
If you're not logged in, you can see what this page looks like, but you will not be able to add anything.
Short name, e.g., Bob's Coffee
Destination URL. E.g., https://www.coffee.com/
Description (displayed with the short name and URL.)






       <voice source="everyone"><Hardy>I have nothing to say.</Hardy></voice>
—galukalock, Jul 09 2003
   

       Where does the air come from? Go to?
—phoenix, Jul 09 2003
   

       The HVAC system. This uses the Heating/Air system that most homes already have; the idea is merely to switch the direction of the airflow depending on the temperature of the air being moved, as hot air tends to rise and cold air tends to fall.
—galukalock, Jul 13 2003
   


 

back: main index
business  computer  culture  fashion  food  halfbakery  home  other  product  public  science  sport  vehicle