<p>it’s 30F outside, and i have my window WIDE OPEN, it’s snowing, and my room is still BURNING because i can’t figure out how to turn off this heater T.T</p>
<p>Looking at the top of the device, it goes clockwise from full open to closed so assuming that turning the knob moves the pointer, it appears that right or clockwise should decrease the steam coming out.</p>
<p>BTW, if you decrease the amount of steam coming out of your radiator, it will increase the steam coming out of other radiators with more steam coming out of those closer to the boiler. Also, some of the heat is coming from the radiator itself and some from the steam. The benefit of the steam is humidity which is nice in the cold weather.</p>