Easy one to make you feel smart? Radiator problem

Rubbertree · 11-22-2009, 08:03 PM

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

Blondesense · 12-10-2009, 12:57 PM

Bumping this thread cause I have the same problem!

Scuba_Dave · 12-10-2009, 01:00 PM

Until all of the air is bled out you will not get heat from the radiator

Bondo · 12-10-2009, 01:26 PM

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,..??

Rubbertree · 12-10-2009, 03:33 PM

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.

**beenthere** · 12-10-2009, 04:44 PM

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

Bleed it after every heat cycle you hear.

11-22-2009, 08:03 PM	#1
Rubbertree Newbie Join Date: Sep 2009 Posts: 26	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

12-10-2009, 12:57 PM	#2
Blondesense Stuck in the 70's Join Date: Sep 2008 Location: south central Missouri Posts: 1,832	Easy one to make you feel smart? Radiator problem Bumping this thread cause I have the same problem!

12-10-2009, 01:00 PM	#3
Scuba_Dave Xtreme DIY'r Join Date: Jan 2009 Location: South of Boston, MA Posts: 17,248	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

12-10-2009, 03:33 PM	#5
Rubbertree Newbie Join Date: Sep 2009 Posts: 26	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.

12-10-2009, 04:44 PM	#6
beenthere An old Tradesmen Join Date: Oct 2008 Location: PA Posts: 19,057	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.

Easy one to make you feel smart? Radiator problem