Bleeder Valve Location

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Lightning
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Post by Lightning » Sat. Dec. 30, 2017 12:10 pm

Here's the scenario. I have a friend with a hand fed coal boiler. The circulator needs to be replaced and he even has one ready to swap it with. The trouble seems to be, according to his wife, they can not find the air bleeder valves on the system. He's afraid to swap the circulators for fear of getting air in the system and not being able to bleed it.

So, first question. Is it even possible to not have bleeder valves on a boiler system?

Second question, where would the air bleeders be? Wouldn't they need to be at the highest point? Or doesn't it work that way?

Sorry for the boiler 101 questions lol. I don't have much experience in the hydronic department. They are currently burning the black liquid but would like to fire up the coal boiler, especially for this cold spell.

 
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Rob R.
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Post by Rob R. » Sat. Dec. 30, 2017 12:34 pm

No need for bleeder valves on the baseboards if there is a purge valve on the return.

 
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Lightning
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Post by Lightning » Sat. Dec. 30, 2017 12:48 pm

Rob R. wrote:
Sat. Dec. 30, 2017 12:34 pm
No need for bleeder valves on the baseboards if there is a purge valve on the return.
So, that would be close to boiler somewhere? lol

 
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Rob R.
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Post by Rob R. » Sat. Dec. 30, 2017 12:50 pm

Typically a purge valve is on the return, and is made up of a ball valve and a boiler drain.


 
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Lightning
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Post by Lightning » Sat. Dec. 30, 2017 1:11 pm

Thanks for your help, so it could be anywhere in between the boiler and last baseboard then. If there is no purge valve, I would look around the baseboards to find a bleeder valve? Do I have that right?

Where do people normally put these things?

 
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coaledsweat
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Post by coaledsweat » Sat. Dec. 30, 2017 1:43 pm

It isn't a problem, no need to bleed. Change the pump and fire it up.

 
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Lightning
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Post by Lightning » Sat. Dec. 30, 2017 1:44 pm

coaledsweat wrote:
Sat. Dec. 30, 2017 1:43 pm
It isn't a problem, no need to bleed. Change the pump and fire it up.
Awesome thanks....

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