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Trying to loosen / remove main vents---they won't budge.
Novice here, and over the last 8-10 years have learned a lot from this site. Thank you all. Weil McLain residential boiler about 30-40 years old, and working fairly well in my 90 year old house----due to your input and training of this novice. A while back (years, now), I replaced the two single main vents mounted on my two returns with a candelabra of 3 Gorton no. 1's on the end of each of the two returns. I want to remove them to check them out, etc. I know I'm older now, and maybe not as strong, but for the life of me I can't seem to get either the vents themselves or any part of the candelabra to budge, to loosen at all. To complicate things, of course they're up between my basement ceiling joists with not a whole lot of room . I realize I may have tightened them a little too much on installation, but still... Any suggestions that I might try to get them loose?