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Old 01-09-2007, 07:13 PM   #1
smw
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Help with heating: diverter tee system


I have a house built in 1950 that uses a hydronic single pipe diverter tee system. The system is plumbed with iron and steel and has started rusting and leaking. My wife and I have decided to replace it with copper.

Questions:

The original system was hung from the joists in the basement using pipe strapping. It's about 3-4" down. In the new system I'd like to notch the joists and mount the pipe directly (loosely, of course, to allow for expansion) to them, since I'm finishing the basement and would prefer to hide the pipes. Any caveats with this?

Also, we need to add an additional room to the system, but it uses baseboard radiators, not the in-wall type that the rest of the house has. From an article I read (http://www.heatinghelp.com/heating_howcome3.cfm), it appears that this should be installed at the end of the line. Any comments?

Your suggestions are welcomed.

Thanks,

Steve


Last edited by smw; 01-10-2007 at 08:15 AM.
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Old 01-09-2007, 08:45 PM   #2
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Help with heating: diverter tee system


Quote:
Originally Posted by smw View Post
In the new system I'd like to notch the joists and mount the pipe directly (loosely, of course, to allow for expansion) to them, since I'm finishing the basement and would prefer to hide the pipes. Any caveats with this?
Not wise to notch the joists.
How long is the span of the joists?
What is the thickness and height of the joists?

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Old 01-09-2007, 09:42 PM   #3
smw
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Help with heating: diverter tee system


Span is about 12 feet, joists are a nonstandard size of 2.5x7 (I had been calling them 3x8s until I actually measured them)...

Keep in mind, I was only planning on notching them about a half inch or so...

Last edited by smw; 01-09-2007 at 09:52 PM.
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Old 01-10-2007, 06:05 AM   #4
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Help with heating: diverter tee system


When you say one pipe hydronic that perks my ears.When you have only one pipe that leads me to believe you have a stem boiler which you may not want to move the pipes if you like having heat.could you clarify what you mean by one pipe
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Old 01-10-2007, 08:15 AM   #5
smw
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Help with heating: diverter tee system


It's a standard one pipe hot water system (see the page I linked to in my first post). They were very popular up through the 1950s.
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Old 02-13-2008, 10:50 AM   #6
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Help with heating: diverter tee system


SMW, How did you make out? I have the same system that I wish to upgrade to either coppper or PEX. Feel free to email me with any information!!

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