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-   -   how to drain/remove a single radiator (http://www.diychatroom.com/f17/how-drain-remove-single-radiator-14792/)

DanBress 12-27-2007 08:14 AM

how to drain/remove a single radiator
 
I am remodeling my kitchen and would like to drain/remove one radiator while remodeling the room.

I dont know how I am supposed to do this. I know that I can shut off the incoming water by turning the knob on the top. I don't know if my radiator has a lockshield valve. What do I do if I dont have a lockshield valve?

Attached is a picture, let me know what you would do.

http://farm3.static.flickr.com/2379/...c5346b.jpg?v=0

skymaster 12-27-2007 01:02 PM

If you dont need the heat on than drain system and pull it out. If you need heat then you still have to drain it a bit, pull radiator and then BUILD A BYPASS TO RECONNECT THE PIPES SO YOU HAVE A LOOP FOR YOUR HEAT

bigMikeB 12-27-2007 11:36 PM

Drain the lines and cap them both.

skymaster 12-28-2007 11:49 AM

Mike: if you dont connect them you have turned off the heat loop. on every radiator you have a feed and a return, they form a continous loop and to continue to have heat without that radiator it has to be connected :}:}

DanBress 12-28-2007 02:13 PM

Quote:

Originally Posted by skymaster (Post 83449)
Mike: if you dont connect them you have turned off the heat loop. on every radiator you have a feed and a return, they form a continous loop and to continue to have heat without that radiator it has to be connected :}:}

If this is true, then wont turning one heater off(by turning the knob) "break" the loop, and shut down heat everywhere? I thought each radiator was a branch off the main line.

skymaster 12-28-2007 02:39 PM

Dan; If the actual "loop" is underneath the floor and you are tying the radiators in with the proper "t's" then you are correct. Since I cannot see the sustem I said to tie them together becasue this way I know everything will remain the same regardless of how it is piped. Just CMA :yes: :laughing: .

If you have regular baseboard heat ,that is one loop only and you cannot just take a section out without reconnecting that section with pipe.
A single pipe Steam system you can just shutoff a radiator without a problem.

bigMikeB 12-29-2007 02:28 AM

I think you'll find that if a radiator has a valve on it that it's piped in a mono flo tee system, removing one radiator or all of them won't change flow in the loop.

DanBress 12-30-2007 02:00 PM

OK, I am not really experienced with this sort of thing so I am going to describe what i plan to do, and what i think will happen each step of the way.

I have a two pipe radiator by the way.

1) I will turn off the incoming hot water
2) I will open the bleed valve which will cause air to go into the radiator, and all the water into the radiator to go out of the drain pipe.
??? How long do i do this? How do i know when the radiator is empty? Will air get into the return pipes/the rest of the system?
3) i will use a monkey wrench to disconnect the send and the receive pipes from the radiator
at this point the receive pipe will be open. Is it possible that the lack of pressure forcing water in to this pipe will cause water to flow back out of this pipe? If this doesn't happen wont air get into the pipe?

4) Do i need to cap the receive pipe while I am doing my renovation?

bigMikeB 12-30-2007 02:12 PM

There will be full system pressure on the return side of the loop. The system will need to be shut off, the water feed closed and the loop drained below the point of the radiator your removing, then you can safely remove it and cap the both pipes. Most old radiator valves don't shut off 100% because of debris on the seat. You will need to refill the system back to operating pressure and maybe do some bleeding after you bring it back online after the radiator is removed.

redline 12-31-2007 12:25 PM

Do you have access to the pipes below the floor?

Can you post a photo of the pipes below the floor?

Do they connect with an elbow or a "T" below the floor?

DanBress 12-31-2007 12:36 PM

Quote:

Originally Posted by redline (Post 84249)
Do you have access to the pipes below the floor?

Can you post a photo of the pipes below the floor?

Do they connect with an elbow or a "T" below the floor?

Directly below the floor is an elbow to another pipe which I believe connects to the main system with a T. I will take pictures tonight.


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