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Old 11-22-2009, 07:03 PM   #1
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Easy one to make you feel smart? Radiator problem


Thanks for reading folks...I've looked and tried a few things but its time to call in the big guns...the Mrs isn't too happy...

Recently moved into an older home with hydronic (I think...hot water through baseboards and fins to dissipate the heat) heating and a newer oil fired boiler.

All radiators work well except for the one upstairs in the master bedroom. It gets no heat at all. I've looked in the basement and this branch is the first one to leave the boiler. The feed (big) pipe gets hot, all the branches after this one get hot but this one branch stays cold. Even in the basement its cold.

I've tried bleeding this radiator (and all the others) and I have gotten some air out of all of them. I've actually bled this one radiator a couple of times and gotten air out of it each time but it remains cold.

The other radiators upstairs get heat.

I'm open to any and all suggestions...thanks in advance.
RT

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Old 12-10-2009, 11:57 AM   #2
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Easy one to make you feel smart? Radiator problem


Bumping this thread cause I have the same problem!

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Old 12-10-2009, 12:00 PM   #3
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Easy one to make you feel smart? Radiator problem


Until all of the air is bled out you will not get heat from the radiator
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Old 12-10-2009, 12:26 PM   #4
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Easy one to make you feel smart? Radiator problem


Quote:
I've looked in the basement and this branch is the first one to leave the boiler. The feed (big) pipe gets hot, all the branches after this one get hot but this one branch stays cold. Even in the basement its cold.
Ayuh,... Got a Picture of this,..??
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Old 12-10-2009, 02:33 PM   #5
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Easy one to make you feel smart? Radiator problem


I wish I did have a picture but I don't. Since I originally posted the message I have bled the radiator some more. Because this is the first radiator to be fed after water leaves the furnace it makes sense that it would collect the most air right?
Anyway, I got a lot of air out and then some water and then some more air and finally I have some heat. Last night the room was 13 degrees (55 for you Americans) despite the rest of the house being 20 (or 68) and heat coming from the radiator...so I figure I have some other sort of heat loss problem going on. I've sealed the windows with plastic and we'll see how that works...I'll also have to check my attic for insulation but the access hatch is currently 1'x1' so I'll have to embiggen that in order to get my head up and get a good look. Ah the joys of home ownership.
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Old 12-10-2009, 03:44 PM   #6
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Easy one to make you feel smart? Radiator problem


You probably still have a lot of air in that loop.

Bleed it after every heat cycle you hear.

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