Steam air vent

mmc239

I am going to Home Depot to buy made o mist air vent for my steam baseboard located directly above my boiler. Which model should I get?

Jamie Hall

That depends entirely on how big that baseboard is, and more importantly on how well it heats the space. So I can't really answer that...

mmc239

The air vent I have there now is Varivalve and it spits water out of it when I first turn heat on. It is brand new vent. 

neilc

we see the vent end supported, and fixed at the valve end,
any chance that length of fin tub is sagging in its middle?
can you get a eyeball on that ?
and it all pitches back to the valve?
and then you want the slowest vent in the world on that end.

mmc239

Which letter or number vent is the slowest?

neilc

mmc239 said:

Which letter or number vent is the slowest?

you've found my weakness, IDK,
there's another thread running with a link to charts here,
I'll look for that thread, you can try search function here also,
"steam venting charts"

neilc

https://heatinghelp.com/assets/documents/Balancing-Steam-Systems-Using-a-Vent-Capacity-Chart-1.pdf
it's in the middle back where the charts start

bburd

That vearivalve is a notoriously fast vent, even when closed. A slow vent would be something like a Hoffman 40. Gorton also has slower vents, as does Maidomist which makes them with replaceable orifices so you can adjust them.

mmc239

After reading up, I have decided to use a Gorton air vent. I just don’t know if I should use a #4 or 5. This is a steam baseboard located in my living room. The thermostat is in the kitchen about 12 feet away. 

Big Ed_4

Slowest would be the driest