Installing copper near boiler 1 1/2 inch piping on Burnham hot water boiler using baseboard and conventional radiators. I am interested in whether or not to use Propress fittings as opposed to solder. Getting conflicting advise from local "experts". I assume that Propress is faster for the installer but I am worried about the long haul. How long do the "O" rings last in a hot water heating system? Any help would be greatly appreciated.
Thanks
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