I passed my Electrical Contractor Master License today in Ohio first try, It was really tough but your videos help A LOT! Thanks!

At an IAEI class about 6 years ago while stuck in the 2008 NEC was Told that to bond any CSST you have to go by what the manufacturer says. The NEC should have one spelled out method. I got called out to a friend who had a fire place feed by CSST mounted one inch above carpets. I was worried about people running a vacuum cleaner damaging this thin tubing over time. Anyway it took me halve a dozen phone calls to get an answer. Thanks for another great vid.

This guy is always passionate. Mike Holt working hard for us from his space!

This is a great application for the Mechanical Contractor to use the Inter systems bonding connection we provide at the GEC.

Gracias Mike you are the men

I say just bond no matter what. Need to be prepared for future installation changes where the electrician is no longer there.

Wow! What an awesome presentation and just the great info I needed. Thank you so much Mike and take care!

I think that every duct should be bonded. Years ago where the duct work coming out the top of a gas furnace had a rubber noise isolation section. An old clothe covered by 14/2 NM cable was ran at a 90 degree angle from duct by touching it. After more then 20 years it rubbed thru insulation almost causing a fire. About 6 years ago we were told at a CEU class that every manufacturer of CSST has their own method of bonding. You would think they could get just 1 style if a clamp or fitting to bond all CSST.

The reasoning behind the CSST bonding is to mitigate damage from lightning, the yellow coated stuff being very susceptible. I have seen two instances in the last three years where lighting blew a hole in unbonded CSST, one of which ignited the gas (luckily inside the fireplace). Our AHJ’s require gas line bonding as part of the electrical inspection which I fully support.

Great video Mike! Thanks for the education.

Another code Quagmire. Sounds like a mechanical contractor problem to me. It's their piping that they have been paid to install per the mechanical code. It's not my job to tell a sprinkler contractor how to install their work, or a gas fitter how to install their work, just like it's not their job to tell me how to install my electrical work. Unless it's specifically pointed out in the division 16 specifications on the approved plan, or the AHJ tells me specifically that I need to do it, I'm not going to be concerned with it. I've survived this trade for 40 years and I think common sense is the way to go in this case.

Thank you for sharing.

Something you may want to consider is when the gas piping is threaded onto the gas fitting of the appliance a non-conductive paste or approved tape is used on the threads. This isolates the piping from the appliance. So it is not bonded through the circuit grounding conductor but it's also not likely to become energized. Lol Just don't mount it to the building steel that is likely to become energized. This is always a fun point of contention with the inspectors. I just thought you'd want to think about it first before it comes up in a discussion.

Thanks Mike!

King of the nec

Residential hvac apprentice, thank you sir! I just wish field wiring were as clean as your diagram

Great video, I watched it multiple times! I’m excited to start getting more books and information. Thank you for igniting a passion now to get my license. I pushed it off for awhile but I’m more determined now then ever and I have you to thank for that. Thank you for another amazing video Mr. Holt.

I would save more time bonding 100 gas lines before trying to explain this to our building inspectors. They're clueless.

When I piped in my gas furnance instuctions stated to use a dielectric union on the 3/4" gas pipe. I went to the local plumbing supply house and they did not have any in stock so I reused the original union. I did install 12/2 MC cable to replace 40 year old type AC cable. Often wondered if we should install a bonding jumper between the cold & hot water copper lines at gas water heaters due to they have insolated fittings even though they would bond together at downstream metalic faucets.

This is the same gawd damn problem that happens with so many other trades & installations of different kinds that it's overwhelming. If it's not the AHJ saying to do what the CODE says, it's the CODE saying to do what the OEM says, and if it's not the OEM saying to do what the Professional CONTRACTOR/TECHNICIAN says, it's the Professional CONTRACTOR/TECHNICIAN saying to do what the AHJ says; and around and around we go. I honestly see how we've suited ourselves into making sure everything is done by robots.

Great video. I’ve always said it made zero sense to bond a gas pipe. I always figured it’ll go off like a bomb if it’s ever made to do , what it’s made to do.

A lot of miss information out there. Equipment Grounding Conductor. Done👍

Out city wants us to always bond the gas ..but especially if that flexible gas piping is used. I assume that is the CSST. Also, we don't bond underground propane tanks without a dielectric fitting. To prevent providing an alternate path to ground. They seem "UNlikely" to become energized if you ask me.

Thanks for sharing your knowledge.

Sounds like a government agency can't make up its own mind. When both NFPA 70 and NFPA 54 are contradicting each other. Then the AHJ's read it one way or another and can't agree either. In my own house, my gas line isn't bonded, but its more than 75' away from the panel. That being said technically or at least electrically, the gas line is bonded, indirectly, but the water line bond, through the water heater. There would be a need for bonding as many high efficiency gas water heaters or power vented water heaters do have electrical connections as well. However in our area they are just run romex into the box with no metal EMT or MC cables. But based off the info you presented the grounding conductor is normally screwed to the metal of the fixture directly. I know many of the cities require bonding around us, due to lightning strikes we get and set houses on fire. You get the flash over arc in the attic where the gas line and metal duct work from the chimney run through the attic as most fire places have gas run to them, even though there are no electrical igniters run to them. Great video Mike! 👍

Bonding for static and dielectric charges

I just had Rockville City in Maryland with same issue had me bond

Sued if you do and sued if you don't. Lawyers hard at work.

Gas ranges require 120 volt, and are typically connected to the same gas piping system as the water heater. So, the gas system must always be bonded. Also, what they mean by in accordance with NEC would mean NEC rules still apply to the bonding conductor. For instance, it should be secured or stapled, etc..

Hey mike, I see that your newest products are going digital. Is there a option for people who probably want the Dvd version of it? I think there should be a option of someone who want the physical copy of it or digital.

If the water needed to be bonded then the presence of the gas water heater would require the gas to be bonded since the gas and water are bonded within the water heater. Then would you say the gas is bonded via the water pipe? Don’t thing so

Any good plumber knows that when you connect dissimilar metals like black gas piping to copper gas piping a dialectic union is recommended. The dialectic union breaks the electrical bond, so theoretically the pipe on one side of the dialectic union could become energized and not trip the breaker. Also, if the pipe becomes energized by lightning it could explode at the dialectic union. Thoughts?.

Your the best

My iron pipe gas line is bonded at the hot water heater and furnace. But I'm adding 25ft of CSST in my basement area close to the gas meter. Curious if I should run the bonding clamp 6awg wire from csst brass fitting to the exterior of my house grounding point on outside of house where panel box runs to.

Mike, do gas water heaters have electric pilots or electric spark etc to ignite the gas burner?

Yeah it’s a big head scratcher Mike damned if you do damned if you don’t. Here is where you have to go back to the issue of why you need to bond. Is that metal part likely to become conductive and create a hazard shock risk? Overbonding a metal part that does not need it can create shock risks of its own. Two tests here one is a functional one is the conductive part connected to the mass of the earth/ground (absent any connection to the electrical installation) If so you could look to bond. More effective is to test. The piping may go through voids, walls or floors where it joins to plastic piping that is non-conductive (or at least far less conductive) or is insulated on terms of a jacket or sheath on the pipe there would be no need to bond. Second to test You could do a continuity resistance test between a real ground (main ground terminal) and the metal part using long lead (null the leads) if that resistance reading is greater than the differential resistance (using ohms law at a given safe current say 5, 10 or even 30mA) at 120v less body resistance (assume 1000 ohms when wet but could be lower if a child is considered or different parts of body) the. if resistance of the metal part with respect to ground is greater than the differential in resistance at a safe level less body resistance then most likely no need to bond. You will need a proper continuity meter that can measure up to at least 1Mohms and not a multimeter. I know Uk electricians are given guidance by its standard setter to make such a determination. Of course one reading does not tell the whole picture as design considerations change as well as the electrical installation changes then that would also be need to be considered.

It just maybe a local code. Here is California Equipment bonding includes gas metal piping and water lines. This is in addition to 2 ground rods, or a ufers. There requirement is two or more grounding conductors. Also water lines at the water heater needs to have a jumper from hot to cold at the water heater piping. This is required by the electrical contractor when installing service panels here. What the diagram with the water heater is not showing, is the bonding connector back at the gas meter main already bonded, therefore no bonding required of the gas pipe at the gas water heater. The 2015 uniform plumbing code 1211.2 Bonding of CSST Gas Piping. CSST gas piping systems shall be bonded to the electrical service grounding electrode system. The bonding jumper shall connect to a metallic pipe or fitting between the point of delivery and the first downstream CSST fitting. The bonding jumper shall be not smaller than 6 AWG copper wire or equivalent. Gas piping systems that contain one or more segments of CSST shall be bonded in accordance with this section. [NFPA 54:7.13.2]. Its true, no mater what you do, you get sued. Thumbs up there.

I think what they mean when they say in accordance to the NEC is, lets say you use drive a grounding electrode because it is closer and less work or the basement is completely finished and it is easier to install a ground rod and attach the gas pipe to that with a #6 conductor. In the NEC it says all grounding electrodes need to be connected together. So you need to find some way to create continuity between your new electrode to the building grounding electrode. I believe this is what they mean in the NFGC. IMO

Code is a minimum, my county requires gas piping to be bonded.

Technically then, shouldn't the short (2 or 3 foot) section of csst between the appliance gas shut off and furnace or water heater be bonded? If yes, I've never seen it done

Mike I think the Florida Building Mechanical Code reads close to the same way as what you stated from NEC 54

Gas or no, wouldn’t the water heater still need power? For the igniter. It is still bonded to ground.

It is my understanding that according to code CSST gas pipe needs a #6 ground conductor connected to the pipe connector or iron pipe at the input of the gas service to the building. In case of lightning strikes!? I am running csst to a ceiling furnace in my workshop that has 120v to it so it would be bonded by that circuit, so the whole thing seems contradictory!

Does the gas bonding help to reduce static electricity in the pipe?

It has always puzzled me that duct work is not considered a likely conductive surface ,eventhough mechanically controlled dampers are installed by a low voltage connection or in some bigger equipment 120v and low voltage wire sometimes is ran inside the duct to facilitate the installation of a thermostat. All this still doesn't make it under code a likely to become energized surface🤔. Mike what is your opinion?😳

It's my understanding you bond gas piping for lightning protection irregardless of its likelihood to become energized.

I am thinking. In some situations, the popes could get static electricity they still need bonding?

What Mike Holt course is this video associated with?

What's with the wobbling bulb in the background?

What about a plug-connected wall furnace? As long as it is plugged in, great. But say it is unplugged. Pipe unlikely to become energized? I guess. But what if someone drives a nail through the drywall and hits both the NM cable and the gas pipe that are running in the same cavity to supply the unit?

This needs to be redone.

So, if my propane tank is connected to my range, and the range is plugged in, is it bonded?

I wish I had the time to wait through the blah-blah-bla to learn the answer to the question.How. about showing how it is done,, then why it is done, and so on. I want to do it right . I want to do it safely... but I need to do it today . Thanks

When are water pipes likely to become energized?

What about the 2018 NEC Code? 400 AMP ground Service residential. Bonding requirements for Gas Lines. I’m reading bonding jumper not smaller than 6AWG. Does 400 amp require my bonding jumper to be larger for the gas line?

If a metal water pipe is "bonded" to the "Grounding Electrode" of a building and that water pipe (or any water pipe connected to that water pipe) is connected to a metal "water heater", any metal gas pipe connected to that metal water heater IS (automatically) BONDED to the Grounding electrode - by quite heavy "gauge" solid copper/steel/etc "Conductors". Any extra "bonding" is redundant!

Thanks 🤔?

So I would guess best thing to do would be to install it then disconnect it after.

How calculated size grounded gas piping for switchgear 2500 amps?

Why would you want the fault go to gas pipe. Had to do that in a house it sounded scary

Authority having jurisdiction supercedes NEC...

Gas fired furnace, gas must be bonded, gas fired stove

too many code makers that dont work in the field

Shocker… mechanical guys trying to get out of work by throwing it at the electrical contractor.

How stupid. Gas pipe comes out of the ground, a lot of ground. One giant grounding rod, in the ground. I get the service conductor ground/bond satisfies the requirement but how stupid. Now you have two grounds for the home/buildings. Want a third one out by the fire pit in the backyard? How stupid.