[RP33719]

Hello all,
Not sure if this belongs here or in plumbing. I will ask here and if it needs to be moved I will re-ask in plumbing.
Need to feed a 100,000btu furnace with natural gas. The furnace will be located on a 2nd floor approx. 100' from the meter. I have figured 6-7 elbows or 90's I think this adds another 50' of piping. So total length of 150' of piping. I was going to run 1.25" pipe the first 60' then reduce to 1" for 40' and end with 3/4".
The gas supply is normal delivery pressure 7" WC or 1/4 pound.
Asking for the experts to check my sizing.

Thanks in advance for your help!

[ma0641]

I don't know how to cut and paste on my Kindle and right now I'm on WiFi in the GA mountains. However if you "Google Gas piping size worksheet" you will find out to account for runs and fittings. Is your meter 1.25"?

[RP33719]

Thank you! This is a new install/addition the gas company will tie my piping into their meter bar when the come to set the new meter.

I re-asked this question to Plumbing

[talaniman]

I don't know how to cut and paste on my Kindle and right now I'm on WiFi in the GA mountains. However if you "Google Gas piping size worksheet" you will find out to account for runs and fittings. Is your meter 1.25"?

Gas Piping Sizing Worksheet

This is how engineers work it out.

*No need for a second duplicate question as the moderators will determine where the questions belong and tend to it... eventually

[ma0641]

Thanks, Tal. That's the one I have used but not from a 1 bar WIFI!