{
    "document_id": 217,
    "page": 1,
    "width_pt": 595.32,
    "height_pt": 841.92,
    "engine": "paddleocr_vl",
    "source_run_id": 342,
    "item_count": 27,
    "counts_by_type": {
        "figure": 4,
        "heading": 7,
        "list": 1,
        "list_item": 3,
        "text": 11,
        "title": 1
    },
    "build_ms": 2,
    "items": [
        {
            "id": "p1.1",
            "order": 1,
            "type": "title",
            "bbox": {
                "l": 70.7857,
                "t": 809.52,
                "r": 470.0652,
                "b": 784.8
            },
            "text": "SFA Safety Guide for Solid Fuel Users",
            "attrs": {
                "block_label": "doc_title"
            }
        },
        {
            "id": "p1.2",
            "order": 2,
            "type": "text",
            "bbox": {
                "l": 74.385,
                "t": 760.32,
                "r": 505.0982,
                "b": 733.2
            },
            "text": "All the appliances in your home operate more reliably, efficiently and safely if they are installed and serviced correctly."
        },
        {
            "id": "p1.3",
            "order": 3,
            "type": "text",
            "bbox": {
                "l": 74.625,
                "t": 729.36,
                "r": 518.5355,
                "b": 702.72
            },
            "text": "Solid fuel appliances are no exception to this and following these few simple guidelines will ensure safe and efficient operation."
        },
        {
            "id": "p1.4",
            "order": 4,
            "type": "heading",
            "bbox": {
                "l": 74.8649,
                "t": 679.44,
                "r": 389.9214,
                "b": 662.88
            },
            "text": "The Three Golden Rules of Safety for Solid Fuel",
            "attrs": {
                "block_label": "paragraph_title"
            }
        },
        {
            "id": "p1.5",
            "order": 5,
            "type": "list",
            "bbox": {
                "l": 96.4606,
                "t": 653.04,
                "r": 258.9078,
                "b": 613.44
            },
            "text": "",
            "attrs": {
                "item_count": 3
            },
            "children": [
                {
                    "id": "p1.5.1",
                    "order": 6,
                    "type": "list_item",
                    "bbox": {
                        "l": 96.4606,
                        "t": 653.04,
                        "r": 202.2792,
                        "b": 641.28
                    },
                    "text": "Proper ventilation."
                },
                {
                    "id": "p1.5.2",
                    "order": 7,
                    "type": "list_item",
                    "bbox": {
                        "l": 96.7005,
                        "t": 638.64,
                        "r": 258.9078,
                        "b": 625.68
                    },
                    "text": "Regular cleaning and sweeping."
                },
                {
                    "id": "p1.5.3",
                    "order": 8,
                    "type": "list_item",
                    "bbox": {
                        "l": 97.1804,
                        "t": 624.48,
                        "r": 173.725,
                        "b": 613.44
                    },
                    "text": "Correct fuel."
                }
            ]
        },
        {
            "id": "p1.6",
            "order": 9,
            "type": "text",
            "bbox": {
                "l": 68.28,
                "t": 606.84,
                "r": 372.84,
                "b": 474.36
            },
            "text": "",
            "attrs": {
                "source": "pdf_image",
                "ai_retyped_from": "figure",
                "ai_reason": "Region 11-63% x 28-44% contains the '1. Ventilation' heading and its body paragraph, not an image; no figure is present there."
            }
        },
        {
            "id": "p1.7",
            "order": 10,
            "type": "heading",
            "bbox": {
                "l": 73.6652,
                "t": 604.8,
                "r": 159.5678,
                "b": 590.88
            },
            "text": "1. Ventilation",
            "attrs": {
                "block_label": "paragraph_title"
            }
        },
        {
            "id": "p1.8",
            "order": 11,
            "type": "text",
            "bbox": {
                "l": 72.4654,
                "t": 585.12,
                "r": 356.0882,
                "b": 477.36
            },
            "text": "Heating appliances, whatever fuel they burn, need fresh air in order to function efficiently and safely. Efficient combustion relies on a constant and sufficient flow of air which cannot be provided if the room is completely airtight. If your home has draught-proofing or double-glazing fitted, you may need vents or airbricks in an exterior wall of the room. If vents or airbricks are already there, always ensure they are not blocked or covered."
        },
        {
            "id": "p1.9",
            "order": 12,
            "type": "figure",
            "bbox": {
                "l": 426.634,
                "t": 581.52,
                "r": 503.8984,
                "b": 503.52
            },
            "text": "",
            "attrs": {
                "block_label": "image"
            }
        },
        {
            "id": "p1.10",
            "order": 13,
            "type": "figure",
            "bbox": {
                "l": 85.4228,
                "t": 444.72,
                "r": 162.4473,
                "b": 365.52
            },
            "text": "",
            "attrs": {
                "block_label": "image"
            }
        },
        {
            "id": "p1.11",
            "order": 14,
            "type": "text",
            "bbox": {
                "l": 188.88,
                "t": 439.56,
                "r": 493.44,
                "b": 360.72
            },
            "text": "",
            "attrs": {
                "source": "pdf_image",
                "ai_retyped_from": "figure",
                "ai_reason": "Region covers the '2. Cleaning' heading and paragraph text, not a picture."
            }
        },
        {
            "id": "p1.12",
            "order": 15,
            "type": "heading",
            "bbox": {
                "l": 194.1209,
                "t": 437.52,
                "r": 262.0272,
                "b": 422.64
            },
            "text": "2. Cleaning",
            "attrs": {
                "block_label": "paragraph_title"
            }
        },
        {
            "id": "p1.13",
            "order": 16,
            "type": "text",
            "bbox": {
                "l": 193.401,
                "t": 417.6,
                "r": 486.142,
                "b": 363.6
            },
            "text": "To enable your appliance to continue to operate safely and efficiently, it is absolutely essential that you do not allow soot or ash to build up where it can hinder or prevent the free flow of smoke and other products of combustion."
        },
        {
            "id": "p1.14",
            "order": 17,
            "type": "heading",
            "bbox": {
                "l": 85.6627,
                "t": 339.84,
                "r": 359.6875,
                "b": 307.68
            },
            "text": "Solid Fuel Cleaning and Maintenance Schedule\nDaily",
            "attrs": {
                "block_label": "paragraph_title"
            }
        },
        {
            "id": "p1.15",
            "order": 18,
            "type": "text",
            "bbox": {
                "l": 81.36,
                "t": 321.6,
                "r": 364.92,
                "b": 57.96
            },
            "text": "",
            "attrs": {
                "source": "pdf_image",
                "ai_retyped_from": "figure",
                "ai_reason": "Region spans the left-hand text column (Daily/Weekly/Monthly/Yearly text), not an image."
            }
        },
        {
            "id": "p1.16",
            "order": 19,
            "type": "text",
            "bbox": {
                "l": 86.1426,
                "t": 303.12,
                "r": 267.5461,
                "b": 289.44
            },
            "text": "Empty and check the ash can every day."
        },
        {
            "id": "p1.17",
            "order": 20,
            "type": "heading",
            "bbox": {
                "l": 85.9027,
                "t": 269.04,
                "r": 124.7748,
                "b": 255.6
            },
            "text": "Weekly",
            "attrs": {
                "block_label": "paragraph_title"
            }
        },
        {
            "id": "p1.18",
            "order": 21,
            "type": "text",
            "bbox": {
                "l": 85.6627,
                "t": 251.52,
                "r": 354.6485,
                "b": 210.48
            },
            "text": "Flue ways at the back of a boiler should be cleaned once a week, but always let the fire go out and allow ashes to cool before cleaning."
        },
        {
            "id": "p1.19",
            "order": 22,
            "type": "figure",
            "bbox": {
                "l": 422.7948,
                "t": 315.36,
                "r": 500.2992,
                "b": 237.84
            },
            "text": "",
            "attrs": {
                "block_label": "image"
            }
        },
        {
            "id": "p1.20",
            "order": 23,
            "type": "heading",
            "bbox": {
                "l": 86.3826,
                "t": 189.36,
                "r": 129.5739,
                "b": 176.64
            },
            "text": "Monthly",
            "attrs": {
                "block_label": "paragraph_title"
            }
        },
        {
            "id": "p1.21",
            "order": 24,
            "type": "text",
            "bbox": {
                "l": 85.9027,
                "t": 172.08,
                "r": 330.8933,
                "b": 145.44
            },
            "text": "The throat plate at the top of a roomheater should be removed and cleaned."
        },
        {
            "id": "p1.22",
            "order": 25,
            "type": "heading",
            "bbox": {
                "l": 85.9027,
                "t": 123.6,
                "r": 119.4959,
                "b": 110.4
            },
            "text": "Yearly",
            "attrs": {
                "block_label": "paragraph_title"
            }
        },
        {
            "id": "p1.23",
            "order": 26,
            "type": "text",
            "bbox": {
                "l": 86.1426,
                "t": 106.8,
                "r": 357.288,
                "b": 65.04
            },
            "text": "Have your chimney swept at least once every year (twice if burning wood or housecoal) and always before each winter. Always use a recommended chimney sweep."
        },
        {
            "id": "p1.24",
            "order": 27,
            "type": "figure",
            "bbox": {
                "l": 422.7948,
                "t": 137.76,
                "r": 500.2992,
                "b": 60.72
            },
            "text": "",
            "attrs": {
                "block_label": "image"
            }
        }
    ],
    "ai_vision": {
        "model": "claude-opus-5",
        "confidence": 72,
        "added": 0,
        "retyped": 3
    }
}