I was going to put an air scoop off the top of my top tank. As you can see I am limited for space. Can i just put the bleeder into the top of the tank? Can I put the air scoop right off the top of the boiler once I go horizontal with pipe before I gain the altitude? Then I was reading about the spiralvents on here. But they look a bit taller yet. I also saw somewhere that they can go on a vertical pipe. Maybe on the way up to my highest horizontal pipe. Not sure what to do. If i put tanks all the way to floor ill have room but I raised them Sony would get thermosiphon in power outages. ????