Gas Line Through Concrete Wall

A fellow from texas sent me this photo.

Gas line through concrete wall. Proper hook up here. Core drills are expensive tools and not something that the. Here is a csst line improperly installed through a foundation wall. Where piping is encased in a protective pipe sleeve the annular space between the gas piping and hte sleeve shall be sealed at hte wall to prevent the entry of water insects or rodents.

That is going through a block wall from outside to inside into a garage the meter is outside the wall at least that is what the original post said. Drill a hole through the house wall using a drill bit long enough to pass all the way through the wall. Drill bits of this size can be rented at most tool rental businesses. The nfpa 2002 6 2 1 where passing through an outside wall the piping shall be protected against corrosion by coating or wrapping with an inert material apporved for such applications.

Gas lines running underground to a house are supposed to break the surface of the ground before penetrating the wall and entering the house. It shows the damage to a csst gas line from a. However over time you may. Position the hole as close to the appliance that will be using the propane as possible so most of the pipe run is outside rather than inside.

This is so that in the event of a gas line leak under ground the leaking gas will follow the pipe to the surface and be expelled to the atmosphere instead of inside the house. It should be in a watertight conduit 1 2 larger in diameter than the gas line. Most pipes gas lines water lines and other inserts that need to stub through a concrete foundation are drilled for by the contractor during the building of the home. That wall is no different than a block wall at the rear porch with a gas line going through it or from outside to inside to a fireplace or into a kitchen etc.

In industrial occupancies gas piping in solid floors such as concrete shall be laid in channels in the floor and covered to permit access to the piping with minimum damage to the building.