Two Radiators in adjoining rooms do not heat up..could this part be why?

Athana

Hi.On the second floor (of 3 floor house) but at the farthest end of house from boiler..there are two rooms where the two radiators pretty much stay cold.I just noticed that these two radiators are the only two in entire house with this thing sticking out.

What is it..& could this be why?

Thanks

Paul48

Those

are bleeder valves for a hot water system. Maybe a stupid question, but are you sure you have a steam system?

Steamhead

Looks like someone

was trying anything he could to get the air out.



You need a good Steam Man. Where are you located?

nicholas bonham-carter

two lazy rads

those are hot water bleeding valves, however i notice a gorton air vent lower down, and the radiator appears to be on a 1-pipe steam system.

the bleeder valves will serve no purpose, except to do a bit of testing.

if you fire the boiler, and open the bleeder valve wearing gloves, can you hear any air rushing out? if no air comes out, then these radiators may be on a common riser with an water-lock somewhere in the main feeding it. alternatively, these rads may be at the end of badly main-vented line, and the thermostat may be satisfied before they get steam.

check your main vents as well to see if they are working.--nbc

Athana

Location

Hi I am in New Jersey near Newark

Athana

Hi Thanks

The room undernieth these two rooms is also a dud, as one radiator off one line gets nothing(even though Main Valve & vent was changed).The other radiator,on other line,is now getting something after Main line Vent (which was completely clogged with mineral salts),Main Valve & Air Vent were changed ( last fall).

To make this more complicated under this room is a crawl space.

It is possible that the line going over to the dud radiator in room down stairs is on same line that goes up.This line in basement does not appear to have a line vent going into that crawl space.

Athana

Yes

Yes Steam

nicholas bonham-carter

slow rads

have you been able to do any testing, or is it too warm?

could the line in the crawlspace have subsided so as to male a water-lock

the progress of steam in the pipes has to be tested by taking off vents, or opening your bleeder valves to see if there is air rushing out, as the boiler begins to build steam. i suspect the air is not being let out by the vents quickly enough, and therefore is preventing the steam from rising.--nbc