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Old 01-15-2012, 04:40 PM   #1
nicadrick
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Default Flex gas line from valve to burner?

Why is this stuff so darn expensive. I was at Lowe's yesterday and bought all the gas piping for my manifold, along with vales for just about $50. I went to by the flex to connect the valves to the burner and was blown away at the cost. $25 per flex. Why.

Is there an alternative to hard piping the gas lines? I have read that copper and sulfur in NG and LPG don't play well together.

Please advise.

Thanks!

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Old 01-15-2012, 04:59 PM   #2
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That's why I hard piped mine. There are some online sources that are a little cheaper. But at that price there was no reason for me not to hard pipe it and it's still adjustable the way I mounted it. See Sig.

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Old 01-15-2012, 05:20 PM   #3
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I'm not so sure on the LPG and copper issue. Most all RVs and homes are plumbed with copper for LPG systems. It's basically the standard propane plumbing material for hard lines. I would just see if I can find some of the flexible rubber hose such as the stuff your BBQ has on it.

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Old 01-15-2012, 05:31 PM   #4
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Originally Posted by nicadrick View Post
Why is this stuff so darn expensive. I was at Lowe's yesterday and bought all the gas piping for my manifold, along with vales for just about $50. I went to by the flex to connect the valves to the burner and was blown away at the cost. $25 per flex. Why.

Is there an alternative to hard piping the gas lines? I have read that copper and sulfur in NG and LPG don't play well together.

Please advise.

Thanks!
Have you priced our hoses?
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Old 01-16-2012, 01:13 AM   #5
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You can use copper with propane, but not with natural gas. The copper oxidizes with the air that is introduced through natural gas. With propane being under high pressure there is no air with it. You can use aluminum tubing with both.

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Old 02-02-2012, 06:13 PM   #6
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Default 3/8" copper OK?

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You can use copper with propane, but not with natural gas. The copper oxidizes with the air that is introduced through natural gas. With propane being under high pressure there is no air with it. You can use aluminum tubing with both.
So is 3/8" flexible copper tubing with flare fittings a suitable material for a LP gas manifold on a brew stand? I'm just a to the point of building the manifold for my stand and have to choose a material. I already have some 3/8" copper and bunch of flare fittings in my shop and would prefer to use that over going out and buying iron pipe or premade hoses and their requisite fittings.
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Old 02-02-2012, 06:38 PM   #7
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sounds small. might work fine for low pressure propane though.

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Old 02-02-2012, 06:39 PM   #8
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Have you priced our hoses?
So those can attach straight to the burner orifice?
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Old 02-02-2012, 06:57 PM   #9
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sounds small. might work fine for low pressure propane though.
If you mean the 3/8" copper I was asking about seems small, the ID of the copper is bigger than the ID on the gas hose coming off of the high pressure regulator to my turkey fryer burner. So, as I'm only going to be running one high pressure burner at a time on the brew stand I can't see why 3/8" wouldn't be big enough. My question really has to do the suitablity of copper as an LP gas distribution material and flare fitting to make safe leak proof seals.
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Old 02-11-2012, 05:26 PM   #10
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you will be golden with the copper. i've seen it with other brew stands. a proper flare fitting will make a good seal, so i don't see where you can go wrong.

do you brew outdoors?

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