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Replacing air vents in 4 story Brownstone
Hi. I have a 4 story Brooklyn Brownstone. We have a one pipe steam system. Some residents have complained of banging and vents spitting. We had a plumber here who wanted to replace a radiator that bangs saying the piping to the valve was too far (it's maybe 6 inches) and wanted $ per vent to replace them.
Knowing this was all outrageously priced and excessive work, I just balanced the banging radiators to slope more and want to replace the vents that spit and the ones on the banging radiators. Wondering how do I determine what size Gorton or Maid o Mist valves to get. Does each floor require a different size? Is one brand better than the other? Should I only get the round vents and not bullets?
One (ok two) other issues - the stairwell radiator on the first floor hardly heats, and the vent on the main in the basement that feeds the front of the house hisses really loudly and spits. I'm thinking that valve is not the right size.