[
  {
    "type": "construction",
    "id": "constr_chimney",
    "group": "build_chimney",
    "category": "CONSTRUCT",
    "required_skills": [ [ "fabrication", 3 ] ],
    "time": "2 h",
    "qualities": [ [ { "id": "SMOOTH", "level": 1 } ] ],
    "components": [
      [ [ "brick", 30 ] ],
      [ [ "mortar_build", 1 ], [ "mortar_lime", 1 ] ],
      [ [ "water", 1 ], [ "water_clean", 1 ] ],
      [ [ "sheet_metal", 2 ] ]
    ],
    "pre_special": "check_empty",
    "post_terrain": "f_chimney"
  },
  {
    "type": "construction",
    "id": "constr_vent_pipe",
    "group": "build_vent_pipe",
    "category": "CONSTRUCT",
    "required_skills": [ [ "fabrication", 3 ] ],
    "time": "30 m",
    "tools": [ [ [ "oxy_torch", 4 ], [ "welder", 20 ], [ "welder_crude", 30 ], [ "toolset", 30 ] ] ],
    "qualities": [ [ { "id": "SAW_M", "level": 1 } ], [ { "id": "GLARE", "level": 1 } ] ],
    "components": [ [ [ "pipe", 3 ] ] ],
    "pre_special": "check_empty",
    "post_terrain": "f_vent_pipe"
  }
]
