Every time the heat turns on (rented house), we are getting choked with too much dry hot air in our small room. When I try to close the supply vent it produces a really loud whistling noise. I either lose sleep because of the noise, or because of the dry heat blast. When I close the vent enough to have heat levels acceptable, it is like trying to sleep in a whistling wind tunnel.
I believe there is too much air coming out of all the vents, frankly, but I am not the owner of the house, so would like a simple DIY solution involving filters, or a new vent, or something else I could install.
I could just cover the vent with foil, effectively disabling that vent (I cannot turn off the heat in the entire house, as other rooms need it). Is that safe, and more importantly, is there a better solution?