Used everyone’s tips and got a gas line run for my new generator.

Had the gas company install a new meter with 550,000 btu capacity. They set regulator to 7.5” WC. I also have a 88,000 furnace and a 38,000 water heater. (Generator is 327,000 btu max load)

I then took everything apart back to the meter bar and used a reducing coupling to go from 3/4” to 1.25” steel straight out to where the generator will sit. Approx 15’ run with 4 elbows on it. The calculations showed it borderline between 1” and 1.25” so I just went big. Used megaloc (the blue one) goop on all joints.

Do you think it will pass inspection? My concerns are if that steel pipe can run outside so close to the ground, and also if I can run the pipe up at that angle to reach the correct height for the feed line?

Also, what should I use to seal the hole where I core drilled thru the brick and block wall? Hydraulic cement, duct seal, spray foam? What’s the best way to do it?

Thanks!

PS - I want to get a 3/4” “full size” valve with a manometer (test) port. That can be installed outdoors. I know Home Depot doesn’t have that kind of thing, so what exactly should I ask for when I go to the plumbing supply?









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Your final connection to the generator will be a flex connector, for vibration dampening. Your generator may come with it.

The inspector will need to see your new piping hold a pressure test.

I would have installed a new IPS ball valve at the beginning of your new run so that this new section can be tested separately than the rest. Then at the end of the new run an additional gas valve. Lastly a nipple and gauge testing all the new work holding 20 PSI during a 24 hour period.

good luck and post your green tag soon!



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Oh god I didn’t even consider a pressure test. Now what can I do? I guess disconnect the meter and close the cutoff valves at the furnace and water heater and test it that way? I just won’t have heat or hot water for a day. I can handle that.

if the gas has been on for days and there are no leaks then you should be fine with the inspection. but you never know ??
ask the inspector before he comes out to be sure..
i would put one more hanger just above the meter.
also paint the outside piping with a good rustoleum type paint.
so far it looks good to me..