I think the data says more about home ownership than fuel preferences. You are probably not going to invest in heating
equipment of any kind if you do not own the building you are installing it in. At 47 average, most people that age would
not have a clue about coal. Maybe a distant memory of a grandfather shaking something etc.
What I find more interesting is that 631 people at last check have read this thread, yet only 50 odd posters. What, why
so shy about age? Age seems to be right up there with money,sex, and religion for the awkward conversation list.