Bleeding a Loop Hot Water System

John_26

One room in my house (the dining room), with a base board convection register, is not heating up. I'm sure it must have air in the system because I replaced parts on the boiler. I've bled the main heater/register in the upstairs, but that did not help the dining room on the main floor.

The register does not have a bleeder on it. I've looked and looked. How can I purge the air from this one loop to the dining room?

I would appreciate any advice.

Thank you.

John

Tom K

John, do you have a drain on this loop that you can hook a garden hose to? And do you have and isolation valve between the dran and the boiler?

John_26

No, there is no drain on this loop, that I can hook a garden hose to...

I can shut off water to this loop all together, however.

Thanks for your note. Continued ideas are very much appreciated.

John

Tom K

bleeding

Sorry to take so long to get back with you.
It sounds like you need to have a drain install for your first floor baseboard system.
The installer might have thought that all the air would rise to the top of the system and that why they only put a bleeder and drain there.
Can you take a picture of you boiler piping so that we can make sure that we are not missing something?

John_26

Bleeding a Loop Hot Water System


I don't have a digital camera, I'm sorry. If you're wondering if there is a way to drain the boiler, the answer is yes. There is a drain on the boiler itself, along with a place that is suppose to purge air (I have that open all the way).

All the baseboard heaters on the main floor (each room/each loop) are copper pipes that come up through the floor and on each end of the baseboard, there is a 90 degree elbow-- then the copper pipe extends through the baseboard with the convection fins over the tht pipe.

Can I drain the system and on each baseboard heater, install some type of bleeding valve, so this never happens again?

Tom K

> I don't have a digital camera, I'm sorry. If

> you're wondering if there is a way to drain the

> boiler, the answer is yes. There is a drain on

> the boiler itself, along with a place that is

> suppose to purge air (I have that open all the

> way).

>

> All the baseboard heaters on the main

> floor (each room/each loop) are copper pipes that

> come up through the floor and on each end of the

> baseboard, there is a 90 degree elbow-- then the

> copper pipe extends through the baseboard with

> the convection fins over the tht pipe.

>

> Can I

> drain the system and on each baseboard heater,

> install some type of bleeding valve, so this

> never happens again?



Yes you can drain the house and install a drain in series with the baseboard so that this heating problem does not occur.

Tom K

you can install a purge circuit that would help you get rid of the air. To do this you would have to install a boiler drain in series with your baseboard and before shutoff. Hope my crude drawing helps understand.

John_26

I'll let you know. I really appreciate your help.

Thank you,

John