If you haven’t checked it already, the vent valve on the radiator might be closed or worn out.
You might also have a radiator that’s getting hotter more quickly than the rest. You can adjust it’s vent valve to vent air more slowly (or replace the valve with a slower one) to give your colder radiators more time to warm up before the thermostat stops calling for heat.
Steam radiator?
Yes indeed. New England home built 1930. Will try to get it done before seeing Nosferatu in theaters tomorrow.
If you haven’t checked it already, the vent valve on the radiator might be closed or worn out.
You might also have a radiator that’s getting hotter more quickly than the rest. You can adjust it’s vent valve to vent air more slowly (or replace the valve with a slower one) to give your colder radiators more time to warm up before the thermostat stops calling for heat.