I have a new gas stove. The gas stove is replacing another gas stove that was there for 50 years. The gas pipe comes up out of the floor and is about 3 feet high and then right angles about 8 inches to the left. The shut off valve is on that right angle piece. The flexible hose goes to the bottom of the new stove. The back of the stove is about 6 inches away in front of the pipe... as the old one was.

My question is that the new stoves... do they run hotter? It says that for self-cleaning it runs at 200 degrees for four hours. I have certainly used the old oven for that long. What I am asking is... do I have to worry about the distance to the pipe from the back of the stove now? I never had a problem obviously for decades with the old stove.

Have you checked with either the Building or Code Enforcement Officer in your Town? My Town has regulations which must be followed.

This is an apartment building in NYC. It is very common to see stoves close to these pipes.

It might be common and more or less grandfathered. Have you called Housing or the Code Office and asked?

Even in a new install, gas lines are only inches away. That is why they have to be metal. On most installs, the flex gas line even touches the back of the range. 200 degrees is under the boiling point of water. You cook at 300-400.