Register now !    Login  
Main Menu
Who's Online
127 user(s) are online (96 user(s) are browsing Message Forum)

Members: 0
Guests: 127

more...




Browsing this Thread:   1 Anonymous Users






Re: Question about bleeding radiators
#12
Home away from home
Home away from home


Hide User information
Joined:
2014/9/16 19:15
Last Login :
2019/2/27 14:41
From Jersey City
Group:
Registered Users
Posts: 500
Offline
Quote:

SRhia wrote:
Quote:

JCman24 wrote:
Whatever you do, don't add water while the boiler is still hot!


What happens if you add water while the boiler is still hot?

How do I find out if the boiler is hot or not???



The boiler should have a temperature gauge and a pressure If the boiler has been running and the temperature is up in the 180 degree range, adding cold water could crack the heating block. You'd need a whole new boiler.

Posted on: 2019/2/12 21:41
 Top 


Re: Question about bleeding radiators
#11
Home away from home
Home away from home


Hide User information
Joined:
2007/12/30 16:56
Last Login :
2021/10/6 14:50
From Jersey City, NJ
Group:
Banned
Posts: 702
Offline
Sometimes it takes a few tries to get all the air out. Air may be trapped in lower radiators, ans as you bleed and water cycles in, the air from lower units/rooms will work it's way up. Then you can bleed again.

Posted on: 2019/2/12 16:28
 Top 


Re: Question about bleeding radiators
#10
Home away from home
Home away from home


Hide User information
Joined:
2011/4/15 3:58
Last Login :
2019/5/9 22:13
Group:
Registered Users
Posts: 973
Offline
Quote:

JCman24 wrote:
Whatever you do, don't add water while the boiler is still hot!


What happens if you add water while the boiler is still hot?

How do I find out if the boiler is hot or not???


Posted on: 2019/2/12 15:43
 Top 


Re: Question about bleeding radiators
#9
Just can't stay away
Just can't stay away


Hide User information
Joined:
2005/12/2 17:42
Last Login :
1/25 19:36
Group:
Registered Users
Posts: 77
Offline
The low pressure might also mean one of the old radiators/pipes might be leaking in one of the apartments.

Posted on: 2019/2/12 14:46
 Top 


Re: Question about bleeding radiators
#8
Home away from home
Home away from home


Hide User information
Joined:
2014/9/16 19:15
Last Login :
2019/2/27 14:41
From Jersey City
Group:
Registered Users
Posts: 500
Offline
Whatever you do, don't add water while the boiler is still hot!

Posted on: 2019/2/12 13:36
 Top 


Re: Question about bleeding radiators
#7
Home away from home
Home away from home


Hide User information
Joined:
2011/4/15 3:58
Last Login :
2019/5/9 22:13
Group:
Registered Users
Posts: 973
Offline
Thank you all for the replies and info - will get the pressure checked out.

PS we have the old school cast iron radiators.

Posted on: 2019/2/12 2:47
 Top 


Re: Question about bleeding radiators
#6
Just can't stay away
Just can't stay away


Hide User information
Joined:
2015/11/12 3:03
Last Login :
2020/7/1 1:16
From Jersey City
Group:
Registered Users
Posts: 72
Offline
Yea you should always get water. Top floor will take longest to bleed since furthest from the boiler. Sounds like two things, first could be you just need a thorough bleed to get all the air out and that can take a while OR you dont have enough pressure. One boiler for multiple floors could be a big issue depending on the size of the equipment.

Posted on: 2019/2/12 2:01
 Top 


Re: Question about bleeding radiators
#5
Home away from home
Home away from home


Hide User information
Joined:
2004/11/6 21:13
Last Login :
2023/7/17 17:42
From Hamilton Park
Group:
Banned
Posts: 5775
Offline
Quote:

tern wrote:
Are you on the top floor? If you don't get water to come out when you bleed the radiator, then the pressure is probably too low on your boiler.

Robin.


Exactly. There's a pressure regulator to drop the pressure since hydronic systems don't like to run at full city pressure. Perhaps its malfunctioning.

Dcourts, that only works for hydronic fin baseboard, not the less common cast iron radiators or cast iron baseboard. A lot of old houses were retrofitted from steam to hot water leaving the old radiators.

Posted on: 2019/2/12 1:50
 Top 


Re: Question about bleeding radiators
#4
Home away from home
Home away from home


Hide User information
Joined:
2011/4/15 3:58
Last Login :
2019/5/9 22:13
Group:
Registered Users
Posts: 973
Offline
Quote:

tern wrote:
Are you on the top floor? If you don't get water to come out when you bleed the radiator, then the pressure is probably too low on your boiler.

Robin.


Yes, I'm on the top floor.

So - every time I bleed, once all the air is out, I should ALWAYS get water, regardless of whether the radiators are hot or cold. Is this correct?

Posted on: 2019/2/12 0:14
 Top 


Re: Question about bleeding radiators
#3
Home away from home
Home away from home


Hide User information
Joined:
2006/5/10 16:36
Last Login :
2023/7/18 1:45
From Hamilton Park
Group:
Registered Users
Posts: 981
Offline
Are you on the top floor? If you don't get water to come out when you bleed the radiator, then the pressure is probably too low on your boiler.

Robin.

Posted on: 2019/2/12 0:02
 Top 


Re: Question about bleeding radiators
#2
Just can't stay away
Just can't stay away


Hide User information
Joined:
2015/11/12 3:03
Last Login :
2020/7/1 1:16
From Jersey City
Group:
Registered Users
Posts: 72
Offline
Best bet would be to bleed the units from the boiler itself. Just did this myself earlier in winter. Attach a hose to boiler and just have some place for the water to go (it will be warm). Once you get all the air out of the house at the boiler, you are all set. There is a pressure valve that depending on your unit, may need to be replaced, not giving enough pressure to send to all the radiators.

Hope this helps.

Posted on: 2019/2/11 23:43
 Top 


Question about bleeding radiators
#1
Home away from home
Home away from home


Hide User information
Joined:
2011/4/15 3:58
Last Login :
2019/5/9 22:13
Group:
Registered Users
Posts: 973
Offline
We have hot water radiators in our small building - the boiler is located in basement, and is controlled by one thermostat in a common area. The one boiler system warms up all the radiators for all units in the building.

When I bleed my radiators, once I get all the air out (ie when I no longer hear the hissing sound), am I suppose to get water (either hot or cold) every time once all the air is out (ie shortly after the hissing sound stops)?

For my unit - sometimes when the hissing sound stops, nothing comes out. I have sometimes waited for 5-10 minutes, and nothing comes out (usually when the radiator is cold).

Is that normal? Or does that indicate the pressure is not set right on the boiler?

Also - there's usually one radiator that always have more air than the rest, and is usually colder / takes longer to warm up than the others (we have about 6 in total in our unit). What does that mean?

TIA!

Posted on: 2019/2/11 23:05
 Top 








[Advanced Search]





Login
Username:

Password:

Remember me



Lost Password?

Register now!



LicenseInformation | AboutUs | PrivacyPolicy | Faq | Contact


JERSEY CITY LIST - News & Reviews - Jersey City, NJ - Copyright 2004 - 2017