| Example Number | Source | Property Date | Storey/Location | Property Type | Summary Information | Hazard | Link |
| 1 | IDeA | 1952 | 2 storey | End Terrace house | The
hazard relates to a sealed solid fuel heating appliance with back
boiler in the living room. There is no permanent ventilation and the
installation has not been checked for 4 years. | D | Example 1 |
| 2 | IDeA | 1923 | 2 storey | Mid terrace house | The
hazard relates to wall mounted gas fires in the ground floor front and
rear living rooms, one of which is in poor condition, has no valid gas
certificate and no permanent ventilation to the room. | D | Example 2 |
| 3 | CLG | 1890s | 1st floor of 3 storey | Victorian Terraced house converted to 4 non self contained flats | In
the kitchen/diner there is a gas instantaneous water heater over the
sink. A crude metal plate and horizontal cowel have been fixed on the
wall above the unflued water heater, but this has not prevented the
wall and ceiling becoming stained by the gasses emitted. There is
limited ventilation, and there are no carbon monoxide detectors in the
dwelling. From the staining on the walls and ceiling it is clear that
the heater is emitting a substantial volume of hot and potentially
dangerous gases. | D- | Example 3 |
| 4 | CLG | c. 1900 | 2 storey | Terraced house | The
sole source of heating in the principal rear living room is a fixed gas
fire. The central radiant has burnt through, and the fire burns with a
reddish flame (indicating incomplete combustion). Ventilation is
extremely limited. Incomplete combustion indicates that there is likely
to be elevated levels of carbon monoxide and other gases, if the fire
is used for prolonged periods of time. | C | Example 4 |
| 5 | CLG | 1900s | First floor bedsiit | Mid Terrace house - 4 storey inc Base and attic | The
gas cooker in the bed-sit is old, and the high-level grill burns with a
reddish flame (indicating incomplete combustion). There is no permanent
ventilation, which means that oxides of nitrogen accumulate in the room | C | Example 5 |
| 6 | CLG | 19th century | 2 Storey | Stone cottage | The
cottage is in an exposed rural area, when windy, smoke and fumes from
the flue of the solid fuel boiler are blown back into the room. There
is no permanent ventilation to the room. The likelihood of sulphur
dioxide fumes and smoke being blown back into the room is significantly
greater than the average. | E | Example 6 |
| 7 | BCC | 1908 | 2 Storey | House | A
gas central heating installation from a back-boiler which has not been
recently serviced. There is evidence of incomplete combustion from a
gas fire and the back boiler with poor ventilation of the house. | E | Example 7 |