Keyword | CPC | PCC | Volume | Score |
---|---|---|---|---|
history central heating coal fired stern | 0.76 | 0.7 | 9554 | 46 |
history of central heating | 0.32 | 0.8 | 505 | 5 |
coal fired central heating | 1.17 | 0.5 | 3286 | 58 |
history of central heating uk | 1.06 | 1 | 6116 | 64 |
inventor of central heating | 0.11 | 0.4 | 6494 | 82 |
who invented central heating | 0.58 | 0.7 | 7988 | 13 |
when was central heating invented | 0.52 | 0.3 | 1757 | 43 |
first central heating in uk | 1.2 | 0.9 | 502 | 96 |
casteel heating and air history | 0.95 | 0.6 | 9069 | 73 |
when did central heating become common | 1.04 | 0.4 | 605 | 34 |
first central heating systems | 1.71 | 0.2 | 6266 | 47 |
early central heating systems | 1.73 | 0.4 | 9528 | 63 |
who invented the central heating system | 0.74 | 1 | 3500 | 23 |
who created central heating systems | 1.33 | 0.1 | 9959 | 53 |
coal burning furnace history | 0.08 | 0.1 | 9595 | 13 |