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Old 01-19-2013, 08:39 AM   #1
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Cutting through a gas line


I am taking out a furnace and can't get the gas line off the furnace. If I shut the gas off and open the stove, and wait a few hours, will I be able to use a recip saw to cut through the iron pipe?

My plan is to cut a section of pipe, then use a pipe-wrench to remove it, then cap it with a short threaded piece and a cap.
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Old 01-19-2013, 08:47 AM   #2
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Cutting through a gas line


Use a close quarters pipe cutter, but I can't beleive you cant loosen it. Rent a couple of real Rigid Pipe Wrenches, and eat some Wheaties. Are you sure your are turning the Union in the right direction? They can be deceiving.
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Old 01-19-2013, 08:53 AM   #3
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Cutting through a gas line


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Use a close quarters pipe cutter, but I can't beleive you cant loosen it. Rent a couple of real Rigid Pipe Wrenches, and eat some Wheaties. Are you sure your are turning the Union in the right direction? They can be deceiving.
There was actually a capped T like 2" away from a valve, so I removed the cap, closed the valve and cut it. Weird because even though I knew there wasn't gas / couldn't smell any gas, my heart raced the entire time.

The furnace is tight against a wall, if the wall wasn't there I probably could have unscrewed it.
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Old 01-19-2013, 09:02 AM   #4
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Cutting through a gas line


That was probably a drip.
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Old 01-19-2013, 09:12 AM   #5
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Cutting through a gas line


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That was probably a drip.
Ha! I though the guy ran out of L's so he used a T and a cap - your theory makes more sense...
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Old 01-19-2013, 09:25 AM   #6
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Cutting through a gas line


Once the gas is off, you don't need to wait....the gas will disapate so fast that it's a non issue.

Remember, gas needs air to to burn....the gas in the pipe is not going to burn because there is no air. Worse case, you get a small 'puff' of flame at the cut (if you were using a sawzall)...but that would be it. I just spent the last 3 days messing with a 22M BTU Combustion Burner....We were opening valves...leaking gas out....doing all sorts of things....no issues....just don't smoke in the area....
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Old 01-19-2013, 09:58 AM   #7
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Cutting through a gas line


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.just don't smoke in the area....
that doesn't make any sense. cutting it, and throwing sparks is ok. but a cig is not ok ?
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Old 01-19-2013, 10:06 AM   #8
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that doesn't make any sense. cutting it, and throwing sparks is ok. but a cig is not ok ?
I was talking about my case....
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Old 01-19-2013, 10:08 AM   #9
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that doesn't make any sense. cutting it, and throwing sparks is ok. but a cig is not ok ?
I'd rather have a puff of fire near my hands than face
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Old 01-19-2013, 10:20 AM   #10
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Cutting through a gas line


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I'd rather have a puff of fire near my hands than face
no doubt. but from what is being said here. there would not be enough gas left to light off.

and no, i am not advocating smoking and cutting gas line .
in my case, i would not do any kind of work, while smoking.
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Old 01-19-2013, 10:58 AM   #11
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Cutting through a gas line


Off topic, but related-----

Once long ago I found a small leak at a coupling if the middle of a long run---above a drywalled ceiling-----

I pictured a major job involving extensive drywall work and reworking 40 feet of piping--

A plumber came in----sawed the coupling in half---removed the two halves---added a union and was done in less than an hour.

Duh---so simple,yet the idea of cutting the coupling in half never even occurred to me.
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Old 01-19-2013, 11:31 AM   #12
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Cutting through a gas line


Did you get a permit?
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Old 01-19-2013, 12:01 PM   #13
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Did you get a permit?
No I didn't---Why did you ask?

Perhaps you aimed that at the OP----?
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Old 01-19-2013, 12:12 PM   #14
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Cutting through a gas line


To the original poster, not you mike, sorry for the confusion.


4 (1) An individual must not perform regulated work in respect of a gas system or gas equipment unless the individual
(a) holds a certificate of qualification issued under this Part,
(b) is authorized to perform regulated work in respect of gas without holding a certificate of qualification,
(c) has successfully completed a training program recognized by a provincial safety manager,
(d) holds another certificate of qualification to perform limited work in respect of gas under the Act,
(e) is a homeowner acting in accordance with section 24, or
(f) is permitted to do so in accordance with section 5 of the Safety Standards General Regulation.

24 (1) A homeowner may apply for an installation permit to perform regulated work with respect to gas equipment in a fully detached dwelling if

(a) no person is being paid to do, or assist the owner in doing, the work, and
(b) no part of the dwelling is rented to any person.
(2) Section 26 does not apply to a homeowner who performs regulated work under this section.


For liability. If anything happens with that furnace or piping without an inspection your home insurance is most likely void. Typically $50-$150 for the permit, which includes an inspection by an inspector with a gas license.
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Old 01-19-2013, 01:53 PM   #15
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Cutting through a gas line


Ells are for those without foresight and tees are for those that can see into the future .
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