DIYbanter - View Single Post

mike[_22_]

On 1/20/2013 6:36 AM, wrote:
On Jan 19, 11:42 pm, "hr(bob)
wrote:
On Jan 19, 10:03 am, wrote:

HD didn't have one just like it that's adjustable, they have ones that blow in different directions and I don't see the point of blowing the air to the sides.

As far as why to blow it at the wall, it'd be less drafty than having a vent blow right at the dining room table.

You blow the air toward the outside wall because that is where the
outside wall is either heating or cooling the rest of the room.

I thought the cold or hot air coming from the register is
what's cooling or heating the room, not the wall. It's not
very smart to be putting the hottest air onto the outside
wall. You're just going to heat that wall area that it's
blowing on HIGHER than room temperature so that more
of the heat will be lost through the wall to the outside.
What's going to lose less heat? Having the wall at 70
or having it at 80?

Life is a tradeoff.
If you want the most efficient heat, put on a coat.
If you want the most uniform room temperature, put the heating
vents under the windows.

If
the room is a corner room, then you have to decide which wall has the
most heat loss/heat gain and direct air toward that wall. No sense
blowing air toward the walls that are inside walls because they are
already at the desired temperature, assuming heating/cooling of the
adjacent rooms.