For a rural garage build 50 ft from the house, we are planning to run the yellow natural gas PE line underground from the house foundation to the garage with anodeless risers on each end. Coming into the house, we plan to use a sleeve for iron pipe and then run it across the crawl space. There is a plug in the iron pipe near our gas furnace. Would that be the best place to tie in or should we run another sleeve through the opposite wall, and another anodeless riser to connect to a T on the yellow PE feed line to the house? Where would be the best place to put a cut off valve? The underground line will be in the same trench with water and electric and tracer wire. Any other concerns with our plans?
Underground gas line
- Thread starter lqchar
- Start date
I never realized how complex a natural gas/propane system can be until I started working on mine. Pipe size, distance to appliances, appliance demand, line pressure, etc. All play a part in developing a proper functioning system. Without knowing this information any answer will be a shot in the dark. 
Just to throw it out there, have you checked with the county to make sure you can do this work? I know where I live homeowners are not allowed to do anything when it comes to natural gas or propane. All work must be completed by a licensed individual.
Just to throw it out there, have you checked with the county to make sure you can do this work? I know where I live homeowners are not allowed to do anything when it comes to natural gas or propane. All work must be completed by a licensed individual.
csp
Well-known member
If the line in the house is just big enough to supply the gas appliances in the house you don't want to add more potential usage to it.
There's not enough information given yet for anyone to know how you should do it. What size is the gas pipe with the plug in it? What all is it supplying and how many BTUs do those things put out? What are the lengths going to be?
Just saying you're going to use it for a small heater isn't enough information.
I had a customer wanting me to install a line going to a small backup generator only 10' away from his utility room where the gas line is located. A 1/2" line would have been fine if the existing supply coming into the house wasn't already tapped for capacity feeding two furnaces, two water heaters, a gas range and gas fireplace.
There's not enough information given yet for anyone to know how you should do it. What size is the gas pipe with the plug in it? What all is it supplying and how many BTUs do those things put out? What are the lengths going to be?
Just saying you're going to use it for a small heater isn't enough information.
I had a customer wanting me to install a line going to a small backup generator only 10' away from his utility room where the gas line is located. A 1/2" line would have been fine if the existing supply coming into the house wasn't already tapped for capacity feeding two furnaces, two water heaters, a gas range and gas fireplace.
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^ ^ ^ This. TOO LITTLE information.
However, it's totally cool that you're going to have FREE HEAT by getting NG from your onsite well !!
. . 
Things that GJer's will need to give best advice include:
. . . a) BTU of heater you want to run in garage
. . . b) pressure of NG (methane) flow from well to house/garage
. . . c) size of yellow PE plastic pipe you're planning to run (IPS- iron pipe size)
. . . d) distance and number of elbows for the underground run of yellow pipe
Heck with onsite NG well, you should going one step further . . FREE Fuel for vehicle !!
I drive bi-fuel vehicles that either run on NG or normal petrol. I'd love to have my own NG well as 3,600 psi compressor could fill the vehicle overnight while you're sleeping. Popular homeowner brands are Fuelmaker or Coltri MCH-5 (see example below).
http://www.ebay.com/itm/like/252543097437?lpid=82&chn=ps&ul_noapp=true
Sizing to use that free well NG would be MUCH BIGGER to handle the high "BTU requirement" of the NG compressor. Thus, you would use LARGE yellow plastic pipe so that there was plenty of NG flow from well to the demands like garage heater and CNG compressor.
See more info at: www.cngchat.com
Also, you may need to have composition of the NG gas analyzed to see what other gases or contaminants are also included. High sulpher or water content would need "cleaned out" before using for CNG.
However, it's totally cool that you're going to have FREE HEAT by getting NG from your onsite well !!
. . Things that GJer's will need to give best advice include:
. . . a) BTU of heater you want to run in garage
. . . b) pressure of NG (methane) flow from well to house/garage
. . . c) size of yellow PE plastic pipe you're planning to run (IPS- iron pipe size)
. . . d) distance and number of elbows for the underground run of yellow pipe
Heck with onsite NG well, you should going one step further . . FREE Fuel for vehicle !!
I drive bi-fuel vehicles that either run on NG or normal petrol. I'd love to have my own NG well as 3,600 psi compressor could fill the vehicle overnight while you're sleeping. Popular homeowner brands are Fuelmaker or Coltri MCH-5 (see example below).
http://www.ebay.com/itm/like/252543097437?lpid=82&chn=ps&ul_noapp=true
Sizing to use that free well NG would be MUCH BIGGER to handle the high "BTU requirement" of the NG compressor. Thus, you would use LARGE yellow plastic pipe so that there was plenty of NG flow from well to the demands like garage heater and CNG compressor.
See more info at: www.cngchat.com
Also, you may need to have composition of the NG gas analyzed to see what other gases or contaminants are also included. High sulpher or water content would need "cleaned out" before using for CNG.
The supply line is 1.125 " and the in the house line is 1" iron pipe and it serves a gas range, dryer, furnace, water heater and ocassional-use gas fireplace. I believe the furnace is 80 btu. The line to the garage will need to run the length of the house, about 45 feet and then another 50 ft to the garage. Was thinking about a small vented gas heater for ocassional-use in the garage but am open to suggestions on the size type.
As far as elbows, there would be three iron pipe elbows plus two or three anodeless risers depending on where its best to tap in. Yeah CNG for the vehicles is intriguing but I'm just trying to get a little heat to my yet unbuilt garage. One project at a time Total BTU for the house currently is 155 and probably looking at a 30 BTU heater for the garage at most. Is that enough to help with the planning?
Total BTU for the house currently is 155 and probably looking at a 30 BTU heater for the garage at most. Is that enough to help with the planning?
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