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Are there any non-powered alternatives to this window vent currently installed in a 4.4lx3.1wx2.6h bathroom ?
Old bathroom only had 1100w of heat input and a draughty window. and never had problems with condensation and the blades would turn with no external wind providing some sort of ventilation.
New bathroom has the same window, now non-draughty and a max heat input of 1000w rad, 550w rad, 1350w UFH and 385w lighting.
Are such devices still available ?
http://home2.btconnect.com/dublydublydubly/PhotoAlbums/album_1331974829/
Old bathroom only had 1100w of heat input and a draughty window. and never had problems with condensation and the blades would turn with no external wind providing some sort of ventilation.
New bathroom has the same window, now non-draughty and a max heat input of 1000w rad, 550w rad, 1350w UFH and 385w lighting.
Are such devices still available ?
http://home2.btconnect.com/dublydublydubly/PhotoAlbums/album_1331974829/
