How to Size Your Gas Lines

[@marvinholmes7925]

I’m 7 years in as a plumber and this video helped me way more than the Trac pipe class. Thank you!!

[@frankb1]

Good explanation. This is probably why a plumber suggested I would need a separate 1" gas line from the meter if I wanted to replace my tank water heater with a tankless water heater.

[@panic-revv85]

Tankless can require a meter upgrade as well.

[@Luke-ms9rh]

Jumping back into plumbing/gas fitting after a 9 year hiatus and hoping to challenge my Gas B exam. This breakdown is an incredibly good refresher man. Much appreciated.

[@Leo3T]

I’m working towards a Plumbing certificate at my local community college and this video was a huge help. Thank you!!!

[@spitfire123455555]

Beautiful demonstration, thank you!

[@denislummerding7432]

Good stuff. Nice, clear easy to understand presentation. You should do this for a living.

[@matthewlassise7607]

Another very interesting informative pipe sizing I like it. I’m originally from Missoula noticed once again you’re from Montana. Currently a plumber apprentice in Minnesota planning on getting my journeyman’s license in a few months. Studying up on pipe sizing diagrams. Thanks again for another great pipe sizing video. 🙂

[@willplumb]

That’s great to hear! Good luck on getting your license. This is a great career.

[@joshslouvi7963]

Missed gas sizing day due to weather ..Thank you Great intro to gas sizing

[@steveprice3863]

Thank you for making a great video that is clear, informative, and efficient!

[@SMario-lf7jt]

Great and thoughtful video . Thanks If you have any time and want to extend that subject, can you make a video on gas pressure and pressure regulators. Thanks again

[@omegaplumbing]

I've yet to see one Inspector actually do any kind of gas sizing on site and that's in 29 years

[@wheelinndealin]

Cool, when doing longest length I’ve always sized the main first and then went back and sized the branches but this is a good way to do it

[@Deep_Divers]

Excellent presentation!

[@gonenotforgotten6089]

What a fantastic video! Very easy to understand using your method, thanks for the great info!

[@orvillemeek6893]

Greeting from Big Timber...a couple of video ideas for you...one about bleeding air from a hot water heat system and another about how to "snake" or clean a slow drain...at any rate I enjoy your presentations...keep up the good work...

[@willplumb]

I appreciate the kind words. I made a jetting video, but haven't made a snaking one yet. I'll add it to the list. :)

[@saleemshaikh1100]

Hi -William. Its awesome to have another video regarding pipe sizing. The way you describe its make so easy for learning and it ls another addition to the knowledge Library.....Cheers.....The book not available on store in Gulf.....Refer other link

[@willplumb]

I appreciate the kind words.

[@joestramelequippingthesain5886]

Thanks for the great informative video on gas pipe sizing... but I didn't see the explosion! Haha. Great job.

[@elijahhall521]

thanks for the help mate

[@notanetbanger]

Great video. You really helped me out here!

[@totograc1625]

Great Job.. very simple to understand..

[@TellersandTales]

Thanks! Going for my test next month🍾

[@ringo11192]

way to go I learn so much from your video thanks big time🙌🙌🙌

[@jaimedpcaus1]

Super great presentation. 👌 Thank you very much for sharing. 🎉🎉

[@turner111971]

My tankless hot water heater has two readings on the table for BTU per hour. Minimum input is 11,000, maximum input is 180,000. Which figure do I use to calculate the Cubic ft per hour? Thanks.

[@loganhoffman9541]

brilliant, please do more?

[@elsalva1231]

Great video… how do u figure out pressure drop?

[@MrChipBryant]

Thank you for this, very very good!

[@jackmansoura]

Just curious, what would happen if you ran 1-1/4” to the end and dropped the size at the appliance?

[@Seabass1206]

it wouldn’t get enough pressure what do you mean, the pipe will reach a resistance

[@mahmoudgawish7431]

Hi Thank you for the video , can you give example of sizing by using LPG and extracting sizing data from NFPA 58

[@Richbechtold-yp2xi]

After determining the correct pipe size I need 1" 1/2" for the main however the pipe coming off the meter is only 1" is normal. I have upgraded the meter according to our gas company to a 450.

[@MrChipBryant]

Very good, thank you for your time, respect.

[@JohnnyGlock-r7e]

Could you also size the entire main header as 1.75” and leave the branches as you sized them?

[@josephharmon4403]

The video was great. However, how is the water column "drop" rate computated?

[@idabachee]

I’m wondering that myself

[@ethanlewis1453]

Its worth noting that the only purpose of the line reduction is actually to keep constant gas pressure everywhere in the system. Even a tiny 1/4" pipe would be plenty for the entire system if it were not for the pressure issues that would potentially cause. Look at the detachable propane connection to an RV and you can see the entrance hole is something like 1mm large!

[@madmatt2024]

That's because propane has a much higher CF to BTU conversion ratio. 1CF of propane is around 2500 BTUs, where as NG is around 1000 BTUs so you can support a much higher BTU load with propane using the same pipe size.

[@amen9455]

Thanks you! You help me a lot 🙏🏽🙏🏽🙏🏽

[@WarrenHenry]

Excellent info thanks!

[@camilo8cheryl]

Im installing a 245,000 btu generator on the longest/farthest line😫 i may need to change the 1” Csst installed in my house when i got it, to a 1-1/4”..i need to check NG pressure first, generator is calling for a minimum 3.5 in WC and maximum of 7 in WC..hope i can get 5-6 in WC while boiler/stove and furnace is running👍

[@jimshallcross6592]

You must install to only have .5 in WC drop from supply pressure to meet most code with natural gas. Just because one appliance can operate lower that that doesn't mean the all can without possibility of flare back or failure to ignite. also check to make sure your meter is rated for the complete load.

[@hectorh1677]

How do elbows effect the calculation? Is there a table for that?

[@josephdunne4873]

I want to add fireplace log set which is 65,000 at about 60ft. There is currently a 1/2" pipe feeding a basement fireplace and my stovetop. If is not possible for me to get into the ceiling and change out the pipe to 3/4" . If I don't plan to cook and have the basement fireplace on when using the log set, would I be ok to install it?

[@erikball83]

So helpful.. keep it coming

[@barbarapierce2536]

Great video! Very informative, clearly explained!!

[@mattmas8640]

Question for you. I have 70’ for my furthest distance. However, I want to install a 199,000 tankless water heater. The tankless water heater only has 3/4” connections. Using the chart, 3/4 is not supposed to be utilized even in a branch off of a 1-1/4 just to supply the water heater. The chart would state that I would need a 1” connection to the water heater. How do you get around this to meet code? Do you just reduce down to 3/4” close to the water heater?

[@Choppa_Ya]

Bought a 1965 home in GA Gas line from meter is 1/2” After shutoff valve is downsize adapter to 3/8” There is a copper line running 10’ at various curves over my furnace from the shutoff valve to the water heater. It then connects at water heater with a 3/8” male to 1/2” male connector into the water heater. This doesn’t seem legal. Am I wrong?

[@RightlerBrian]

I know this is basic for you but I am struggling. I have 3/4” steel pipe coming in. After about 10’ it splits into two half inch lines. One line is about 16’ long and runs a 50k but furnace. The other is about 13’ long and I am curious if it will support a 160k but tankless. This is all propane. The regulator is at the house and is 11-13” wc I tested the pressure at the drip leg of the old tank. It is 9” wc with the furnace running.

[@martinciraudo4048]

mister williams very very very good thanks a lot god bless .

[@abubakaruzair6594]

Thanks a lot brother

[@arielramirez8856]

thank you very helpful

[@shannon1872]

Thank you for the video. Apologies If I missed it but do you need to add any extra distance per union/coupling/90 you add into the run? Or just their standard size? I know for pool TDH there is a table that has a value of Head per adapter....was not sure if Gas had something similar or if that is just for pumps and water. Thanks again !!

[@willplumb]

You do not need to add any extra distance for unions, couplings, 90's etc. If you are bordering on a pipe size in the table, you could always size up if you have a ton of fittings.

[@shannon1872]

@@willplumb thanks !! The run I am doing should only have 5 fittings so I would think that is fine then. Great video !!

[@natali_espino]

Hi, I see that the last pipe that connects to the meeter is a 1 1/4", I'm wondering if the meeter needs an adapter? Is the meeter a typical house meeter?

[@HeWearsGlasses]

Thank you 🙏

[@auspicioustoot]

I’m glad we’re allowed to run copper for gas here.

[@1970Mrscott]

Very helpful

[@IjazKhan-yj7kg]

Would you kindly tell me upto what length 1 inch dia ,2 inch dia and 4 inch dia natural gas pipeline could be laid?

[@KewellXi]

The BEST!

[@samuelasare502]

Don't we have another one ?

[@nathan4233]

Why would everything have to be upsized if you did have that situation with the change to 1½ wouldnt the 1½ handle the load and the branches remain the same since those legths are unchanged and still fed the proper amount at that point? Sorry that one made zero sense to me

[@gspk23]

Easy enough :)

[@samuelasare502]

This app is not available in my country

[@waheedqadri80]

Great

[@mad-al]

Good video if I was using natural gas (but I have liquid propane). So where is the LP sizing video?

[@jimshallcross6592]

Same concept, different chart and allowable pressure drop.

[@thierryhenryreyes]

Gracias

[@gotchaplumber]

Love these type videos?

[@rezadargahi9040]

What is the title of the book you refers to

[@willplumb]

In Montana, our state uses the International Fuel Gas Code. Depending on your area, Up.codes has most of the building codes (up.codes/codes/montana)

[@halohunter798]

What if your service line is only 1".

[@gotchaplumber]

Name of book?

[@hdanna823]

awww so now it makes sense why the pipe going into my house is so large....

[@mohamadmoadeli1097]

You are awesome

[@chrisdownunder8745]

You don't use copper tube for gas?

[@madmatt2024]

The agent put in NG that makes it smell like eggs corrodes copper tubing so it would be dangerous to use it for a NG application. Propane however, uses a different agent that is safe for copper so it can be used in those applications.

[@omegaplumbing]

There's like 1 million videos on how to size gas piping now 😂😂

[@ef7496]

Why you didn’t calculate 90 degree bends

[@jimshallcross6592]

and tees.

[@smu414141]

CSST is better than CCST

[@jessrich176]

😚 Promo-SM