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Posted by Ralph Blaine on November 07, 2004 at 17:51:28:
In Reply to: Re: adding air vents posted by george on November 06, 2004 at 03:49:59:
: would it be beter to shut the turn
: off valve and remove the rad to install
: a new vent?
: One problem may be that the
: ball flange may have deteriorated over the
: 100 plus years, but on a newer system it
: may be an easy reinstall.
George
Your suggestion makes sense. I guess I'm afraid of messing with a rad that has probably been in place for about 100 years. Plus I've never taken a pipe wrench to rad fittings before. I'm going to take another look. Is the ball flange in the shut off valve? I you can see, I'm just a homeowner.
One last thing - one of the rads I tried to re-tap with a lower hole for the vent seems to be made of very hard steel - the drill just won't go in. Are there different rad metals out there? This hard rad has its current vent screwed into a hole drilled through a screw-in plug at the top of the rad. These is another such screw-in plug at the bottom. If I could drill through the center of this plug could I put a vent in there or would it just get filled up with condensate?
Thanks for your initial response.