01-02-2010, 08:14 AM
Obie,
Common hot water tanks are built off site in a manufacturing plant and design regulated by Federal standards, they are not constructed by the OB or made on-site, they are installed products.
Septic Systems are constructed on-site unless they are a manufactured ATU and those are built off site and through federal regulations. Regardless of explosion matters there remains the ground water contamination factor involved.
There are inherent differences by virtue of who actually builds the device vs simple installation of a pre-manufactured device.
Here again, the citations are not tit for tat, break the issue down to it's finite to find the answer to the test in question.
I will agree with your point regarding gas lines as these rise to a level of a public safety interest liability should a line leak in a wall and combust causing the house to explode and damage other homes in the neighborhood. Although, this is a matter that walks a thin line between one direction or the other because of the inherent simplicity involved in doping and screwing fittings together and it's not a technical matter by todays standards. However, the threading machines to thread gas pipe etc... when it boils down to it, the home owner wouldn't get much of a savings doing the gas lines themselves. Gas lines are typically pressure tested and inspected before hook up. If they don't leak... they don't leak and more than likely never will, not in the walls, near service junctions perhaps, but this is common regardless of who installs the lines.
The hot water tank is manufactured and if the appropriate pressure release valve is installed, the tanks operation is in check. Thus, I would semi agree with a licensed gas contractor being necessary to provide the gas feed and valve for a gas fired hot water tank but the Gas contractor would not be necessary to set the tank or "hook up" the gas flex line or water lines. An electric hot water tank can be installed by the OB in all aspects.
E ho'a'o no i pau kuhihewa.
Common hot water tanks are built off site in a manufacturing plant and design regulated by Federal standards, they are not constructed by the OB or made on-site, they are installed products.
Septic Systems are constructed on-site unless they are a manufactured ATU and those are built off site and through federal regulations. Regardless of explosion matters there remains the ground water contamination factor involved.
There are inherent differences by virtue of who actually builds the device vs simple installation of a pre-manufactured device.
Here again, the citations are not tit for tat, break the issue down to it's finite to find the answer to the test in question.
I will agree with your point regarding gas lines as these rise to a level of a public safety interest liability should a line leak in a wall and combust causing the house to explode and damage other homes in the neighborhood. Although, this is a matter that walks a thin line between one direction or the other because of the inherent simplicity involved in doping and screwing fittings together and it's not a technical matter by todays standards. However, the threading machines to thread gas pipe etc... when it boils down to it, the home owner wouldn't get much of a savings doing the gas lines themselves. Gas lines are typically pressure tested and inspected before hook up. If they don't leak... they don't leak and more than likely never will, not in the walls, near service junctions perhaps, but this is common regardless of who installs the lines.
The hot water tank is manufactured and if the appropriate pressure release valve is installed, the tanks operation is in check. Thus, I would semi agree with a licensed gas contractor being necessary to provide the gas feed and valve for a gas fired hot water tank but the Gas contractor would not be necessary to set the tank or "hook up" the gas flex line or water lines. An electric hot water tank can be installed by the OB in all aspects.
E ho'a'o no i pau kuhihewa.