One furnace, separate gas/heat?

[Mark Smith]

I just need someone to confirm this for me. I am under contract for my second property (woo!) which I will owner occupy. The listing says "separate utilities: electric, gas, heat" but there is only one furnace in the basement. It's not possible to have separate gas if you only have one furnace, correct? It wouldn't kill the deal because the house is great, but it does bother me.