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This definitely affects the aesthetics, and you can find a way to wrap the I-beam.
It seems that the window on the balcony does not affect the installation of gas water heaters, if the old building does not have a smoke pipe, just find an exterior wall to make a smoke hole, if there is no wall to the outside, it is better to use an electric water heater.
When the building was implemented, the fire protection ordinance was also passed when it was built.
You can also send a simple picture, and look at the picture to speak.
There are two pipes on the roof of the unit, one for stormwater drainage on the top surface and one for sewer exhaust.
Anything will break after a long time, and if it is confirmed that it is a pool drain, you can make a new one, and the original underground will be invalidated. Anyway, as long as your house is broken, you have to fix it.