Landlord paying oil heat for one unit

I have a small unit I am trying to fill an 3br 800sqft unit in Springfield Massachusetts.

People walk away from it because of the size and oil heat.

I cant do much about the size but I am thinking of asking for $1200 (it is currently listed for $1000) to include the oil heat in the rent.

For that size apartment, I cant imagine the yearly heating oil bill exceeding $2400. Hot water is electric and it will still be tenant responsibility.

Do you guys think this is a good idea? I know a lot of landlords pay heat and hot water.

Any horror stories of tenant leaving the window open in the middle of february?