Tenants pay electric, gas, heat.

Electricity shouldn't be a problem but it may not be realistic to separate the heating systems.

No it is not off grid it has consistent power, central air and heat, water, and all the appliances of a normal house.

The AC unit (heat works fine) that wasn't working when I bought the place and I hadn't bothered to remove it bugged him and the bank (SunTrust) asked me to fix it before they'd continue forward.

I owned a heating and air company with my husband for over 22 years and I can tell you there are enough losers out there that will pull nonsense like not showing or giving outrageous prices.

@Michael BrunnerIn an SFH here in Madison and surrounding area, I would expect the tenant to pay all utilities (Heat, Electric, and Water).  

HEATING AIR: Boiler in basement that services all units, making heat included in rent. 

§Providing access to vital services: You must provide access to hot and cold water, electricity, heat and fuel (e.g. natural gas).

But after we had tenants whose various dogs ate my porch swing, the plug off a window air conditioner (haven't a clue why the dog didn't fry himself on that one), dug holes in carpets down to the subfloor, ate the bottom off a closet door, chewed open a door and got under the house in the summer heat to stay cool and crushed a duct pipe and (in one case) were kept under the house so I got to clean feces and urine out from under there on my hands and knees....we rethought our  idea of the need for a pet fee.Gail

She is dropping 6k tomorrow to convert from oil to gas heat, so her costs right now are scaring her.Waiting 2 weeks with a lower price would still mean it was empty on October 1 which is her self imposed deadline for rental.