Keyword | CPC | PCC | Volume | Score |
---|---|---|---|---|
history central heating coal fired stern | 1.75 | 0.8 | 2421 | 72 |
history of central heating | 0.52 | 0.5 | 1818 | 17 |
coal fired central heating | 1.09 | 0.2 | 8148 | 40 |
history of central heating uk | 1.67 | 0.8 | 9803 | 41 |
inventor of central heating | 2 | 0.3 | 2336 | 2 |
who invented central heating | 0.48 | 0.5 | 5781 | 11 |
when was central heating invented | 1.28 | 0.6 | 9492 | 72 |
first central heating in uk | 1.33 | 0.3 | 1232 | 14 |
casteel heating and air history | 1.63 | 0.2 | 6566 | 74 |
when did central heating become common | 0.63 | 1 | 8741 | 62 |
first central heating systems | 0.8 | 1 | 2244 | 4 |
early central heating systems | 0.27 | 0.2 | 826 | 60 |
who invented the central heating system | 0.83 | 0.4 | 8031 | 80 |
who created central heating systems | 1.62 | 0.2 | 3043 | 53 |
coal burning furnace history | 1.02 | 0.7 | 9203 | 65 |