Cast Iron Radiators With Manifold and Pex Home Run

 
Salemcoal
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Post by Salemcoal » Sat. Mar. 08, 2014 12:23 pm

Anyone have any experience running a zone of cast iron radiators with a pex home run system. I want to replace the baseboard with radiators in two rooms.


 
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Sting
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Post by Sting » Sat. Mar. 08, 2014 12:39 pm

NOPE! Never done that.

I'm sorry, my responses are limited. You must ask the right questions.

 
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Rob R.
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Post by Rob R. » Sat. Mar. 08, 2014 1:19 pm

Yes, works fine as long as you have valves on each run for balancing.

I repiped the upstairs zone in my house this way. Bye Bye Monoflow, Hello Pex Manifold

 
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Post by NHFarmer » Sat. Mar. 08, 2014 8:57 pm

I have done this with great results, I built my own manifold and ran 1/2" PEX to each radiator. I installed balancing valves but in my opinion I wouldn't bother with them. You do want to make sure you use an oxygen barrier type of PEX. You will be happy with the rads for sure, just like having a stove in each room.

 
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Post by Sting » Sat. Mar. 08, 2014 10:29 pm

Lets get real on this "advice"
Great disappointment awaits the DIY experimentation of mixing these two types of radiation with one water temperature supply.

Kind Regards
Sting

 
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Post by Rob R. » Sun. Mar. 09, 2014 12:45 am

I wasn't under the impression that he wanted to mix and match the two types of radiation on the same zone...but perhaps I misunderstood. Anyway...it works fine in my house, but I have the manifold on its own zone. Is that "real" enough??

 
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Post by Sting » Sun. Mar. 09, 2014 9:06 am

It Depends!

Do we want the ability to balance the energy flow [of two very different reacting radiation systems] and have the most comfort and economy of operation?


 
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Post by Salemcoal » Sun. Mar. 09, 2014 9:22 am

Not mixing in the same zone

 
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Post by Sting » Sun. Mar. 09, 2014 9:50 pm

The correct answer is --- not mixing radiation systems in the same dwelling

unless you have ???? BUlLER BULER :D

 
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Post by Lu47Dan » Mon. Mar. 10, 2014 1:53 am

Sting wrote:The correct answer is --- not mixing radiation systems in the same dwelling
Wrong, in many ways.
As a Journeyman Steamfitter installing school, commercial and industrial heating systems. I have installed many radiant/convection systems in the same areas of the buildings. One of them was a set of radiant ceiling panels, with fin tube and wall mounted FCU to heat the entrance ways of a school. The radiant panels were mounted directly over the doors, the FCU's were mounted into the walls to provide the majority of the make up heat, the fin tube was install under the windows to prevent them from fogging up. So they can work in the same room.
All it takes is to make sure the system is balanced.
Dan.

 
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Post by Sting » Mon. Mar. 10, 2014 7:32 am

Lu47Dan wrote:
Sting wrote:The correct answer is --- not mixing radiation systems in the same dwelling
Wrong, in many ways.
As a Journeyman Steamfitter installing school, commercial and industrial heating systems. I have installed many radiant/convection systems in the same areas of the buildings. One of them was a set of radiant ceiling panels, with fin tube and wall mounted FCU to heat the entrance ways of a school. The radiant panels were mounted directly over the doors, the FCU's were mounted into the walls to provide the majority of the make up heat, the fin tube was install under the windows to prevent them from fogging up. So they can work in the same room.
All it takes is to make sure the system is balanced.
Dan.
DAN?? Please don't quote half of my post == then interpenetrate it to your chest beating benefit. We all know with a handle such as yours you are a professional!
I [usually] post to make the OP think and find the right answer.

Of course you can mix 10's of different things together and have the perfect infrastructure.

IT DEPENDS - but it helps to get it installed correctly

I a$$ume the OP wants to know the he needs to get these two radiation loads to play well together.

So back at the ranch = Unless you have

Buhler? Buhler? Are you in the room?

 
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Post by Ed.A » Mon. Mar. 10, 2014 8:52 am

Hrmm, I'm sensing a nasty under current in this thread. Did somebody piss in someones soup recently??

 
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Post by Lu47Dan » Mon. Mar. 10, 2014 10:44 am

Sting wrote: DAN?? Please don't quote half of my post == then interpenetrate it to your chest beating benefit. We all know with a handle such as yours you are a professional!
I [usually] post to make the OP think and find the right answer.

Of course you can mix 10's of different things together and have the perfect infrastructure.

IT DEPENDS - but it helps to get it installed correctly

I a$$ume the OP wants to know the he needs to get these two radiation loads to play well together.

So back at the ranch = Unless you have

Buhler? Buhler? Are you in the room?
I took an extraneous reference out of the quote, so that everyone else would be sure of what I was referring to.
Dan.

 
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Post by Lu47Dan » Mon. Mar. 10, 2014 10:45 am

Ed.A wrote:Hrmm, I'm sensing a nasty under current in this thread. Did somebody piss in someones soup recently??
Apparently I did.
When I started reading this thread, my intent was to help out the OP and get him the correct information so he could install the system correctly. I read something that was patently incorrect and referenced it in the quote, than posted the correct information. If the PO'ed poster can not handle that then fine that is his problem not mine.
Dan.

 
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Post by Ed.A » Mon. Mar. 10, 2014 1:00 pm

Lu47Dan wrote:
Ed.A wrote:Hrmm, I'm sensing a nasty under current in this thread. Did somebody piss in someones soup recently??
Apparently I did.
When I started reading this thread, my intent was to help out the OP and get him the correct information so he could install the system correctly. I read something that was patently incorrect and referenced it in the quote, than posted the correct information. If the PO'ed poster can not handle that then fine that is his problem not mine.
Dan.
Actually if you look at the top of the Thread "Sting" kinda seemed to have burr under his saddle before you even chimed in ie: "Real Advice"...so I don't think it's entirely you. Maybe having a bad week or something...or maybe he just likes being a harda$$. I dunno, kinda harsh if you ask me.


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