| Similarity | Rank | |
|---|---|---|
| flue | 0.840 | 38443 |
| boiler | 0.829 | 13188 |
| chimney | 0.809 | 17271 |
| radiator | 0.802 | 21060 |
| ducting | 0.780 | 82490 |
| baseboard | 0.777 | 70916 |
| radiators | 0.775 | 37705 |
| pipework | 0.774 | 80616 |
| boilers | 0.770 | 25056 |
| cylinder | 0.768 | 10647 |
| ductwork | 0.763 | 50140 |
| grate | 0.761 | 31459 |
| flanges | 0.759 | 62765 |
| crankcase | 0.759 | 75529 |
| evaporator | 0.753 | 54470 |
| stove | 0.750 | 9831 |
| pipe | 0.749 | 5497 |
| furnace | 0.746 | 12662 |
| piston | 0.745 | 23115 |
| flange | 0.744 | 34503 |
| impeller | 0.741 | 59269 |
| joists | 0.738 | 51748 |
| soffit | 0.737 | 84698 |
| woodstove | 0.736 | 95240 |
| heater | 0.734 | 10118 |