Need Gas Pipe Sizing Chart


  #1  
Old 01-23-06, 08:04 PM
C
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Need Gas Pipe Sizing Chart

I am thinking about installing a ventless gas fireplace of about 20K BTU. There is a 1/2" stub (w/shutoff valve & cap)in the attic (have a villa type home w/loft), which I guess was for the optional fireplace. It comes off of a reducing tee. 1" X 3/4" X 1/2". The 1" is the house supply and the 3/4" also tee's off (1/2")to the house furnace and down to the HWH and stove/oven. There is a run of about 30 foot across the attic to the interior wall stud space where I want to drop it to the 1st floor.
I want to use CSST.
I need to find a chart to give me an idea of what size CSST I would need. If is more than the 1/2 inch I would need to cut and thread which I hope to avoid.
I am not a certified plumber but I have a brother who was in the HVAC trades who could help. I guess I could ask him but I thought I would try this forum which is loaded with lots of knowledgeable folks.
Any ideas?

Harry
 
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Old 01-23-06, 08:52 PM
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Originally Posted by cdrsuppo
I want to use CSST.
You need to be certified by the manufacturer.
And you need to know what it is.




If is more than the 1/2 inch I would need to cut and thread which I hope to avoid.
You don't thread CSST.


Do you mean that only 1/2" CSST is available to you otherwise you have to use steel pipe?




That said, 1/2" CSST will run 20,000 BTU/h out to 200'.
 

Last edited by bolide; 01-23-06 at 09:07 PM.
  #3  
Old 01-24-06, 04:38 AM
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Thumbs up That's the answer I needed.

Thanks. I was hoping I would only need 1/2". Being a former gas company employee I have cut and threaded lot's of pipe. The CSST has fittings that don't require that. I'll use my HVAC brother to buy it and help me install it.
Thanks again.
 
  #4  
Old 01-24-06, 06:43 PM
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Be careful. Make sure you dont have a 2 LB system if you have natural gas. They are not always labeled at the meter.
 
 

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