What's that thingie at the highest point on a flat plate solar hot water system, that lets the air/steam out but closes when the water hits it.
Is it the same as a watts air vent that's used on an air scoop?
Important note Ė I donít know man made laws, just laws of physics
Disclaimer: I'm a big fan of Darwin awards.
in a word YES. Its not the same thing as a spirovent however. Its just a vent with a float.
Thanks, do you have a source?
I'm putting mine back on the roof after a 80 mph windstorm, just used a check valve before, thought I'd do it right.
here is a link of what you want. I get all my stuff at the local supply house, make sure that any air on both the supply and return lines can get out
The Hy-vent is exactly what I have avaiable to use except it is the Watts brand.
But I don't know how it operates, I understand there is a float inside that closes it off when the air is fully purged, and it kinda makes sense that it re-opens when the water drops.
I want this for freeze protection, i.e. drain down at night.