How can I block a furnace air vent
l do not want any heat blowing into my master bedroom.The register on the
ceiling can be closed, but then it ''whistles'' when the furnace comes
on.l do not wanna take it off each winter and block the air supply.Is
there a cover l can buy?The magnetic ones will not work here.
take and cut one out . to fit out of wood insert it then caulk
around it really good
Trace the ductwork back to the furnace, & look for a ''volume
damper''.it will be a small handle or ''wing-nut'' sticking out the side
of the duct that runs to that room. This is attached to a sort of
''paddle'' inside the duct & you can close this down completely. Between
the register & the volume damper, you should be able to reduce the airflow
to almost nothing. If you have a lay-in ceiling, the damper might be above
that. Block the cold air return in the room, too. If the air can not get out, it has a harder time getting in.
Steven W is right on the money. If you're lucky you may have
dampers already installed at you branch lines.
Certainly with no offense to any others who answer, I have this
issue at hand. I live in a home in which the former owners had venting
routed to a screen room. I live in FL, so it is not such as HUGE issue to
have HEAT, but in essence, any cover right at the vent, is still not
strictly blocking the flow from the source to the main course of where you
want the heat/ac to go. The AIR still has to manage its way through the
''Conduit'' or whatever to get to ur BLOCKED Register, where all it does is COOL down. NOT so efficient. The better choice is to block the DUCT work at the intersection off of the Main. That allows that the natural flow of heated or cooled air never has to travel whatever the distance is, of the offshoot conduit going to ur bedroom, but can expend it is energies to those areas still left open. It may even cause you to not have to keep the thermostat at its current setting. Steven Wolf
go to the hardware store they sell a cover that is made from a
magnetic material that will cove and stick to the register and is easily
removed if needed
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