Yes, for sure there are places where there is no real alternative to fire.
But they are also still used in big cities and other places where essentially trying to improve their efficiency is papering over the failure to build and maintain working infrastructure (mostly electricity, but also gas pipes etc.). And it won't work.
But they are also still used in big cities and other places where essentially trying to improve their efficiency is papering over the failure to build and maintain working infrastructure (mostly electricity, but also gas pipes etc.). And it won't work.