I have an older home 1920. Can someone help me with "How to properly bleed the cast iron radiators that I have in each room." Each radiator has a round handle on it. We just bought the house receintly so we have not had to know how to bleed the radiators.
Also, our radiator humidifier trays/pans which hand by two wires over the back of each radiator have rusted out and we want to replace them. We are having a very difficult time trying to find out where to locate and purchase such items.