Art Todesco wrote:
I will be setting up a small fan to
equalize temperature in 2 different
places. This is actually in a church to
keep the temperature of the organ
chamber, close to the temperature of the
church itself. The reason is to keep
organ pipes in the 2 locations, in tune
with each other. I have googled this,
however, I only come up with a few fancy
electronic units. They would probably
work ok. But, I was wondering if anyone
knows of a simple unit that is capable
of switching 110 to the fan. The fan
will be a small, 300 CFM or so unit,
using just a few amps.
Thanks.

More info, please...how far apart the locations you want/need to use as
controls and what is the existing input(s) you have, if any?

Are you proposing to simply moving church air as makeup or some other
tempered air source?

Do you have any specification from the organ maker/installer/tuner on
the differential required
to be maintained? Has the installation been modified -- if so, would
seem it would have been their job to make sure of ambient conditions
(just a question so maybe you can throw the onus onto somebody else
).

Have good friend who does organ tunings and retrofits -- give more
detail and if like I'll pass on the question to him and ask for
input...where is this located, just in case it might be close?
Alternative solution would seem to me to be to simply ensure continuous
air circulation through the chamber from the other area, but that makes
assumptions about what you're actually moving w/ the fan in your
suggested solution.