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How can I tell if I have a gravity fed system?
After reading your extensive information on gravity fed systems on this site, I believe that my heating system was at one point gravity fed but I want to confirm that it has been converted. There are two heating zones and there are two circulator pumps at the boiler, one that feeds into the old piping. I also have a pressurized expansion tank for a closed system in the basement . Based on this information can anyone confirm that it is no longer a gravity system?
I plan to install a hydronic towel rack in the upstairs bathroom and I’ve read that they don’t work with gravity fed systems. Any advice?