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Old 03-12-22, 05:18 PM   #5
solarhotairpanels
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Join Date: Mar 2012
Location: Warwick, Rhode Island
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Quote:
Originally Posted by Daox View Post
I'm trying to choose an air vent for my solar hot water system. I have 1" PEX supply and return lines. Most air vents I've seen are 1/8" NPT, and I'm wondering if that is going to be big enough while filling the system? Does anyone have any experience with these?
Where on your system are you planning to install the air vents?
I installed mine inside the house on top of my drainback tank on the pipe coming from the collectors..(I used a ball **** valve for that one, I just leave it cracked open) I also installed a kind of vacum release type vent on the highest point on my evacuated tube collector which allows air into the system while the pump is running so as not end up with a vacum lock when water is draining back down into my basement.

sorry but not familiar with the type of system you're building there. :-)
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Pat from Warwick, RI

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Comments and/or suggestions I make here at the forums on 'your' projects as well as my own have all been carefully and scientifically calculated by 'the seat of my pants'
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