Kitchen Gas Appliances - gas line location
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Torch
01-23-01, 11:14 AM
I have a vent free fireplace that I want to install in the basement, directly below the direct vent fireplace on the first floor. The gas line to the first floor will split from 1/2 inch steel to 1/2 inch steel (for the basement) and 1/2 inch flex steel (existing, first floor). Since the gas lines will be located over the new fireplace, do I need to insulate or protect them in any way? The supply line for the basement fireplace will run along the ceiling, exceding the 42 inch combustable surface requirement, but it will then turn down to the floor. I have it positioned behind the fireplace until the drip leg is about 6 inches from the floor. Also, will the heat affect the pipe thread dope? My secondary question is just how hot does it get inside the wall above the new vent free fireplace? If it makes any differance, I am considering adding a blower unit to help the air circulate.
Sharp Advice
01-23-01, 08:51 PM
Hi:Torch
By the discription of your plans, I really suggest you check with the city building department to verify if your installation will meet local codes. Codes vary from area to area and I am not authority on that matter.
However, the steel pipe surely can handle the heat. That shouldn't be any problem. The concern is will rhis aspect of the installation meet the local code.
In regards to the thread compound, I suggest it be the type with teflon in it. This type is rather expensive but worth every cent spent. Avoid using pipe tape!
I have not seen any installations like you discribed, with the gas feed line behind the fireplace. All that I have seen, the supply pipe is at least 12 or more inches away to the side. Never seen one with the pipe installed behind. Could be do to your local codes. Check yours.
There shouldn't be much heat radiated behind a double walled fireplace. However, read the instructions and verify that the wall behind it does meet the fire codes.
In regards to flex gas line, it has to be used only where it is exposed, in this part of the country. Out here it is not code for flex to pass through anything. Examples: wall, floor, ceiling, etc. Flex can become damaged or break if a wall shears do to an earthquake.
Since I am not clear on your intended use for the flex, once again, check with your building and safety department.
By the discription of your plans, I really suggest you check with the city building department to verify if your installation will meet local codes. Codes vary from area to area and I am not authority on that matter.
However, the steel pipe surely can handle the heat. That shouldn't be any problem. The concern is will rhis aspect of the installation meet the local code.
In regards to the thread compound, I suggest it be the type with teflon in it. This type is rather expensive but worth every cent spent. Avoid using pipe tape!
I have not seen any installations like you discribed, with the gas feed line behind the fireplace. All that I have seen, the supply pipe is at least 12 or more inches away to the side. Never seen one with the pipe installed behind. Could be do to your local codes. Check yours.
There shouldn't be much heat radiated behind a double walled fireplace. However, read the instructions and verify that the wall behind it does meet the fire codes.
In regards to flex gas line, it has to be used only where it is exposed, in this part of the country. Out here it is not code for flex to pass through anything. Examples: wall, floor, ceiling, etc. Flex can become damaged or break if a wall shears do to an earthquake.
Since I am not clear on your intended use for the flex, once again, check with your building and safety department.