On 9-Sep-2004, "Steve" wrote:
Would I be better to Pull air into the space and it would exit out the front
around the TV? Or should I turn the fan around and pull air out of the
space, sucking air in from around the front of the TV and blowing it into
the closet.
It's almost always easier to suck warm air out than to force cool air in.
I'd consider having the fan draw air out of the closet and just put a vent
between the closet and TV enclosure. You'll have to get the closet
relatively airtight for it to work well.
If not, make sure the closet is vented at a high spot so that the warm air
introduced has a place to escape.
Remember that whatever is in the path of the air coming out of the fan or
vent will be bombarded with dust over time. If you've got something like
clothes in that closet, they'll get dirty if they're near the air flow.
They'll get black if there are smokers in your house.
I hope to figure a way to have the fan turn on automatically when the TV
turns on?
Use a cheap thermostat of appropriate voltage capacity to turn on the fan
when the temperature in the TV enclosure exceeds room temp by some amount.
You can experiment to find the setting you're happy with. That means it
will continue to vent if the TV's still hot after turning it off.
Computer muffin fans can be used for this. The good ones are quiet. You
might need a wall wart to convert 120VAC to 12VDC - just watch for the
amps being pulled - don't use a 300 mA wall wart for a 750 mA fan. You
can put the wall wart on the controlled side of the thermostat so that
it only draws power when you need it - standby is only a couple of watts,
but... I don't know what the code says about temp controlled 120V
sockets, though.
One other thing - some TVs never turn off. They go from full power to
reduced power and keep the picture tube heater running for "instant on".
You may want to plug the TV into a power bar and shut that off when the
TV's not in use - you'll save electricity and guarantee that there's no
heat generated unless you're watching.
Mike
|