Wall furnace in bedroom

Is an older vented, gas wall furnace “allowed” in a bedroom and/or does anyone know if they were “allowed”? I would think not, as I know most furnaces can’t be, but wanted to double-check. I already know how I’m documenting it, as there were other issues, but I was just curious. TIA.

Sorry about flippin’ pic. :mad:

That older gas furnace may burn all the oxygen out of the bedroom. Modern building codes don’t allow it.