Of course Bob if you are 6ft tall and have 7ft ceilings then it may be a
little too close for comfort!
Duncan
-----Original Message-----
From: spridgets-bounces at autox.team.net
[mailto:spridgets-bounces at autox.team.net] On Behalf Of Bill Masquelier
Sent: Wednesday, January 19, 2011 10:33 PM
To: spridget list
Subject: Re: [Spridgets] Thermal dynamics question (No LBC Content)
My quick answer is to use a ceiling fan- it is quiet, efficient and made to
do exactly what you are trying to do.
In the summer you have it blow the air down to create a draft but in the
winter you change the switch to blow the air up whiich will circulate the
air but create a very minimal draft (if any). All ceiling fans that I have
ever seen have that reversing switch.
BillM
> From: rdgard at cox.net
> To: spridgets at autox.team.net
> Date: Tue, 18 Jan 2011 19:17:19 -0800
> Subject: [Spridgets] Thermal dynamics question (No LBC Content)
>
> NO LBC CONTENT!
>
> Hi all,
>
> I know that a lot of the people on this list are much smarter than I
> am on many different topics. Several times I have asked a question
> and gotten great answers that I would not have thought of.
>
> So here is my situation and followed by my question.
>
> When it gets chilly here at night in the winter (don't tell me how
> much colder it is where you are, ok?) I sometimes turn on the heater
> and it gets plenty warm up at the ceiling and still chilly half down
> the room and worse on the floor. Ok, we all know heat goes up.
>
> So My big idea is to build a small square tube (about 6 inches square)
> and put a small silent computer fan in it. I have an area next to a
> book case that if I paint it the wall color, you would never notice
> it. (Here is
where
> I need your advice.) I want to take the cold air from the floor and
> push
it
> up the tube and exit it at the top so it will start a movement of air,
> pulling the cold air from the floor and warming it up at the ceiling,
> creating a more even temp distribution in the room.
>
> OR
>
> Should I suck the hot air from the ceiling and exit it on the floor
> level, heating up the cold air on the floor. Or does it matter if the
> air
movement
> goes up or down?
>
> These little fans move about 100 cu ft/min of air. If I put two fans,
> one at the bottom and one at the top would it increase the air flow or
> just
make
> one of them work harder and/or make more noise. I know if I put them
> in parallel it would push twice as much air, but in series would it
> make any difference?
>
> Thanks in advance for your good advice and your slings and arrows
> about my freezing 56 degree winter here in San Diego.
>
> Cheers,
>
> Bob
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