Let’s put this debate to rest: gas – even when “fracked” – is both cheaper and cleaner. The energy content of 0.7 gallons of heating oil is about the same as one therm (or ccf) of gas. The former costs about $2.80 delivered (assuming $4 per gallon) while the latter usually goes for about $1 from PECO. That’s almost a three-fold difference; and while those absolute costs may change, the spread between them won’t likely move much (and it would have to move a great deal to make oil the cost-effective choice). And gas boilers and furnaces generally burn a little more efficiently than comparable oil ones. And there are air quality and climate change benefits to gas, too – it has much less sulfur and about half the greenhouse gas effect per unit of delivered heat.