Not quite in the way you phrase it, Ebbie, but the power of vulcanism can be and is being tapped. It's nothing new, let alone futuristic.
"Tapping into volcanoes and piping the heat to all our homes and businesses" won't do except on a very local basis, because heat is a wasting and not very transportable asset.
What can be and is being done is what's called geothermal energy, of which I can offhand think of two forms:
1 Where vulcanism creates natural steam wells (as in Yosemite Park and elsewhere), the pressure of the steam may be used to turn turbines for electric power. The heat of that steam may be used as in item 2 below.
2 Deep wells driven into volcanically heated strata can be used to turn pumped-down water into steam, which is forced up by its own expansion and used to turn turbines for electric power, and the heat of the spent steam to turn water in a plant at the surface into steam for the same purpose.
The electricity so generated is perishable, of course, and is a wasting asset like the heat in Ebbie's post, but it is fed into a power grid and is available at long distances, and reliably, along with conventionally generated (i.e. coal, gas, and oil-powered generating plant) electricity.
Sixty years ago I reported on thermal electric production in northern Italy, to a junior high school geography class, only to be accused by the teacher of making the whole thing up!
So they are doing what you basically had in mind, I think, Ebbie, and they have been doing it for a long time. Iceland basically gets all of its heating, cooling, and electricity courtesy of Iceland's multitudinous volcanoes.