I'm looking at installing a 13kw back-up generator for garage. I know I'll need to pull permits here in VA. Issue is getting LP to the generator. My house valve is about 100 ft away and there is a 15' patio/pool in the way of the run. Can I install flexible gas line? Is there a minimum depth requirement? How do I get the gas line under the patio? Any suggestions greatly appreciated!
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Back-up Generator Install
- Thread starter Gunnert
- Start date
Jim B
Well-known member
My FIL had the same issues when he installed his generator. He had a small LPG tank installed next to the shed that houses the generator so he didn't have to run several hundred feet from their main tank.
Reg1952
Well-known member
Maybe cheaper to install a tank close to the Generator like mentioned.
soj
Well-known member
Flexible PE gas pipe is the only cost effective way to go 100'. It is yellow polyethylene and made just for underground nat. and LP gas. This pipe is very cheap compared to copper, but the compression fittings can be expensive. The cheaper fusion fittings require an expensive tool to make a connection. I used the fusion fittings and hired a plumber with the tool to come make the connections after I had the pipe in the ground. So the answer is, yes, you can install a flexible gas line.
Depth requirements vary, since you will need a permit, the ahj can tell you what they require.
For a 15' patio you can wash a hole under it. A 20' stick of 1/2" or 3/4" pvc with a garden hose sweeper nozzle on the end has worked well for me in the past, but I have never washed over about 10'. Success depends on how rocky the soil is.
Also, for that distance, you would probably need a two stage system, with a high pressure regulator at the tank, then a low pressure regulator at the generator.
If there is a place for a second tank closer to the generator, that may be a easier option. Tank rental or purchase is another decision affecting long term cost.
Depth requirements vary, since you will need a permit, the ahj can tell you what they require.
For a 15' patio you can wash a hole under it. A 20' stick of 1/2" or 3/4" pvc with a garden hose sweeper nozzle on the end has worked well for me in the past, but I have never washed over about 10'. Success depends on how rocky the soil is.
Also, for that distance, you would probably need a two stage system, with a high pressure regulator at the tank, then a low pressure regulator at the generator.
If there is a place for a second tank closer to the generator, that may be a easier option. Tank rental or purchase is another decision affecting long term cost.