bleeding radiators

[sharonbeth]

Most of my radiators function correctly, except two in the house. The two that don't seem to come on at all, unless I turn the thermostat up to at least 74 degrees are in line with one another - one upstairs and one under in the kitchen. I turned a large valve inside to the open position, thinking I was possibly bleeding it in this way. However, these two still only come on when the thermo is turned high. Any ideas?

 

[ChrisR]

In the UK we would normally say this is a balancing problem, but I have no idea how things are configured in the US. And your large valve - pass!