What works best for cooling a room - fan pointing in or fan pointing out?

[T_Bone]

KennyR wrote:
I won't buy an air conditioner. I don't have anywhere to put it, and anyway, I can't run a 3kW device all day to keep me a bit cooler in good conscience.

 :roll:  :-P

[T_Bone]

KennyR wrote:
If everybody ran air conditioners in summer (even if we had enough power for them all, which we don't), it would only make the summers after that even hotter. And so they'd get bigger air conditioners...and it would get hotter still. And on... I know Americans would do just that, but the rest of the human race has got at least some instinct for self-preservation. Maybe.

Well then I'll run an extra one in your honor, ;-) meanwhile I'm involved in a contest in a battle between my humidifier and dehumidifier to see which one wins :lol:

[T_Bone]

6 wrote:
Down here in the stifling south we figured it out a long time ago.  Old "cracker" houses were vented at the top and bottom which allowed hot air to escape and be replaced by cooler air sucked from the shaded lower levels of the house.  Go buy a special window fan which has movable sides to fill all the window space.  Don't just stick a regular fan in a window, it'll just suck hot air in thru the window around the sides of the fan.

Put the fan on exhaust and open all doors to the cooler lower levels, but close all other windows in the room and on the upper floor if possible.  Otherwise you'll just suck in more hot air.

Stay warm.

6


ps: search "cracker house" for a better description of how it works.

 :-)

My Garage is a converted Cracker House. one big fan from Graingers in the attic pointed out, screen door on lower level left open. Whole building is a tunnel of cool air fron the lower level blowing out at the attic level.

A neat thing they do in the middle east, they suspend a piece of canvas above the roof to block the sun, and since the canvas is suspended above the roof, the heat from the sun hitting the canvas just blows away, rather than heating the roof.