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Could this be why cast iron radiator not heating?
Dairon421
Member Posts: 80
I traced down the piping to the basement and I found that the supply is on the radiator 90 (right side)and the return is the radiator valve(left side). All the radiators are heating besides this one.I purged out the air but my question is if the supply pipe and air purger on same side would it still be air trapped in radiator?
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Comments
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Did you get water to come out of that vent on the top right side of the radiator?
If you did. then the water is that high. all the way across.
Is the radiator valve open? In most cases the valve is on the supply side, but if the valve is open, it should make no difference. There are no arrows inside the pipes that tell the water which way to go. The water takes the path of least resistance. A closed valve or other blockage is what I might call resistance. The water will just go a different way.Edward Young Retired
After you make that expensive repair and you still have the same problem, What will you check next?
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EdTheHeaterMan said:Did you get water to come out of that vent on the top right side of the radiator? If you did. then the water is that high. all the way across.0
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Then the water is all the way up there
Edward Young Retired
After you make that expensive repair and you still have the same problem, What will you check next?
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EdTheHeaterMan said:Then the water is all the way up there0
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The radiator is open all across the top so doesn’t matter which side the bleed valve is located.As Ed said, the valve is typically on the supply side of the radiator but it doesn’t matter for standard valve. Some brand TRV will chatter if the flow is reverse. Don’t ask me how I know.0
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