Here are the pics

No steam trap... but definitely a steam vent on the top of the radiator shutoff.

The hissing noise is air escaping as steam fills the radiator.

Finding used radiator may be a hassle in Queens... but try calling a few local plumbing companies and see if they have a used steam or forced hot water radiator. In this case, your steam system being a two-pipe system you are probably best to look for a forced hot water radiator as these radiators also require two pipes. If find a steam radiator you will need to have the plumber remove the plug on one side.

This is a bit involved but when finished you will have heat in the room with that baseboard.

How large is the room you will be placing this radiator in? Based on that wimpy piece of baseboard must be a small room? My point being that you are looking for a SMALL radiator... not some big monster one.

Keep me posted as you go on this... prices for radiator, installation, etc... OK?

Have good day. I'll be back on tonight after work. Let me know what you're thinking...

PS..I will discuss the low water cutoff and basic maintenance tonight!!

so for the steam vent on top, should I replace them, and if so, what do I look for? The room is small, it's a bathroom, abot 10' x 7'. I'll have to start searching, and fast for a rad. Anyway, speak to you later, and again, thanks for all the help!!

Update... I installed a different baseboard with a vent. Now, I get the hissing sound, but only cold air comes out. All the other radiators are hot, but this one remains cold. Any ideas why?

MFM...

Is this baseboard PITCHED?

Make sure the end with the vent is highest part of radiator... try this and then get back to us!

MARK

Yes, the baseboard is pitched, with the vent at the highest point

I know this is a two pipe system... is this piped with 2 pipes and who installed the baseboard... a plumber or a handyman?

Let me know more here...

Post a pic. If you can...

Thanks... MARK