Anyone tried to get gas fan heater outlet in your apartment (LDK/2DK). I have system gas kitchen. Underneath the stove there is [valve](https://imgur.com/a/PHnTIyF) but for gas fan heater I think I should get it bifurcated from here. Presumably this can be connected to outside through opening screw from the side [plate](https://imgur.com/a/BlaWj4H). This is just my guess. Anyone have idea how much such extension would cost? Any recommendations? (Internet search shows prices vary from 3.5k to 20k yen. Looking forward to hear someone’s firsthand experience).
In worst case it’s okay for me to have the pipe popping outside through bottom kitchen closet door. In such a case door cannot be completely closed.