It has been quite for a while and fall has begon. This means time to clean the furnace and test our steam radiators (from 1936). I try to find information on how to balance steam radiators and since its a dying technology there is not much info out there. We have hissing and overheated radiators so i know i need to balance the air vents on every radiator. I think this a job by itself and im spending hours tweaking the air vents. Replacing and finding faulty air vents is like working a crime scene, here is a list of Hoffman air vents now you tell me which one goes where…