Welcome! Here are the website rules, as well as some tips for using this forum.
If you've found help here, check back in to let us know how everything worked out.
It's a great way to thank those who helped you.
How to size radiator vents?
Can someone please help me figure out how to calculate EDR for my radiators and what size vent for the EDR of each. Or could you point me to a source where I can find out how to do it and the chart for vent size per measurement. I've been reading "The lost art of steam heating", I'm not done with it yet but I haven't seen the chart in it yet or calculations.
Also, a side question. How much makeup water is too much water? When I moved in I had to fix leaks with half of my radiator supply valves and unions. The auto water feed digital display reads 442. Sounds like a lot of water.
Thank you all for the help