| Similarity | Rank | |
|---|---|---|
| radiator | 0.902 | 21060 |
| ducting | 0.871 | 82490 |
| heaters | 0.866 | 15430 |
| ducted | 0.864 | 91724 |
| underfloor | 0.847 | 66006 |
| heater | 0.833 | 10118 |
| boilers | 0.833 | 25056 |
| condensers | 0.827 | 99208 |
| ductwork | 0.821 | 50140 |
| baseboard | 0.818 | 70916 |
| vents | 0.809 | 20240 |
| ventilating | 0.808 | 89830 |
| boiler | 0.807 | 13188 |
| pipework | 0.807 | 80616 |
| dampers | 0.801 | 60431 |
| heating | 0.800 | 4216 |
| fittings | 0.799 | 16495 |
| louvers | 0.797 | 84383 |
| electrics | 0.792 | 59755 |
| exhaust | 0.783 | 9598 |
| grilles | 0.782 | 73917 |
| furnaces | 0.782 | 30904 |
| washers | 0.780 | 26590 |
| firebox | 0.775 | 69140 |
| air-conditioning | 0.772 | 27677 |