MF house with one furnace

[Drew Denham]

So I'm looking at purchasing a MF home but the landlord pays utilities and with Michigan winters this could get pricey on a 1900 sq foot house. Any creative ideas for tenants to keep the bills down? Rent is 1150 per month and I can probably get the house for 25k ready to rent. I haven't seen the previous heat bills yet but I'm not sure if it's a red flag not to have multiple furnaces .. Thx all!!