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radiant heat design with solar thermal collectors - Page 6

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Posted by Mike on October 5, 2006, 7:52 pm
You install an air purge valve, they have an internal float coupled to a pin
valve, when the water level drops the valve opens, this allows the air to
escape when filling the system or allows air to enter when draining. Install
the valve at the highest point on your panels. Make sure its a brass one or
it will melt.

Mike NZ

Posted by Jeff on October 5, 2006, 10:25 pm
Mike wrote:

   Like this?

<URL: http://www.blueridgecompany.com/radiant/hydronic/391  />

  Will I need a pressure relief valve and will that be in the same
place? Is that like the kind on HW heaters?

Anyone know how these tempering systems work? I'm real sure I don't want
140F water in my floor.

I just found this:


Check page 35, Multiple zone single temperature.

   What's with these balance vlaves? Is that just a valve?

Atlanta, Ga

Posted by Solar Flare on October 6, 2006, 12:05 am
 Yeah, Buy them at Home Depot for $2


Posted by SJC on October 6, 2006, 2:55 am
 Note, NOT a draindown system, which are ot used as much:

Posted by SJC on October 6, 2006, 2:54 am
 I am refering to this kind of drainback system:


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