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.
Main Vent for steam boiler
Could location of the main vent effect one of the radiators not coming on except when therm temp is turned up by 3 or more degrees? Rad doesn't work when trying to manitain same temp throught the day, only when it's turned up by 3 or more degrees.
The main vent it located very close to the boilder. Can another main vent be installed closer to this rad to help get heat to it?