New gas water heater, gas adaptor


  #1  
Old 02-24-14, 06:22 PM
D
Member
Thread Starter
Join Date: Feb 2014
Location: USA
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
New gas water heater, gas adaptor

Thank you for taking the time to read this. I just got a new gas water heater. It has a fourth inch copper gas line running from my main line. My question is do I have to use a flare tip adaptor or can I use an adaptor sans flare tip and maybe use dope to prevent leaks?
 

Last edited by Divided_sum; 02-24-14 at 08:35 PM. Reason: Typo
  #2  
Old 02-24-14, 08:45 PM
lawrosa's Avatar
Super Moderator
Join Date: Dec 2010
Location: Galivants Ferry SC USA
Posts: 18,190
Received 78 Likes on 70 Posts
Hello and welcome... Are we talking LP?
 
  #3  
Old 02-24-14, 09:14 PM
Piddler's Avatar
Member
Join Date: Feb 2014
Location: US
Posts: 109
Likes: 0
Received 0 Likes on 0 Posts
Mr. Sum, all of the gas connections I've seen have been flare fit. I'm no expert at all but there must me a reason for this.
 

Last edited by Shadeladie; 02-25-14 at 07:17 AM.
  #4  
Old 02-25-14, 09:14 AM
D
Member
Thread Starter
Join Date: Feb 2014
Location: USA
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
No sir. It's natural gas.
 
  #5  
Old 02-26-14, 02:08 AM
W
Member
Join Date: Jan 2014
Location: USA
Posts: 699
Likes: 0
Received 0 Likes on 0 Posts
1/4" gas line to a gas fired water heater ? What size WH ? I have never seen one feed with that small of gas line ?

God bless
Wyr
 
  #6  
Old 02-26-14, 11:13 AM
CasualJoe's Avatar
Member
Join Date: Jan 2010
Location: United States
Posts: 11,206
Received 172 Likes on 155 Posts
Although I've seen it used many times, I don't believe soft copper tubing is compliant with the fuel gas codes for a natural gas connection. Lawrosa could shed some light on this.
 
  #7  
Old 02-27-14, 03:29 AM
W
Member
Join Date: Jan 2014
Location: USA
Posts: 699
Likes: 0
Received 0 Likes on 0 Posts
I have seen it used , to . One occasion ( an Uncle ) the chemicals in the gas caused corrosion in the thinnest part of the line . Which was the flare . This resulted in a leak . :-(

I told him and Dad I did not think they should use it . They asked ifould fix it . I said yes , dug out my tubing cutter & flare tool . Cut the old flare off ( there was sufficent slack to re-do this ) and re-flared the end of the copper .

I do not know if copper is approved for propane ?

God bless
Wyr
 
  #8  
Old 02-27-14, 09:10 AM
CasualJoe's Avatar
Member
Join Date: Jan 2010
Location: United States
Posts: 11,206
Received 172 Likes on 155 Posts
I remember seeing a number of natural gas fired unit heaters in a warehouse connected with soft copper tubing that stopped working because the gas valves were all plugged. The copper tubing had a silvery looking substance in it that looked like droplets although it was dry. All required new gas valves and the appropriate flex connector and all worked fine thereafter. There is a type of hard copper pipe approved for natural gas with silver soldered fittings, but I cannot tell you the type. I prefer black iron piping.
 
  #9  
Old 02-28-14, 03:51 AM
W
Member
Join Date: Jan 2014
Location: USA
Posts: 699
Likes: 0
Received 0 Likes on 0 Posts
Me too , with the black iron pipe . I think the new flex gas " hoses " are made of stainless steel ? ( I know they are not hoses , but I could not think of a correct term to call them ? )

God bless
Wyr
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: