The majority of the time we are renovating buildings with landlord paid heat that have this and these ACs also, we are separating it to minisplits on the tenants electric which do heating and cooling.

The HVAC has been completely revamped to provide central AC and heat throughout the home.

They require regular maintenance and sealing plus they can be sensitive to moisture and heat.

There is a sunroom attached that isn’t connected to central heat and air, but has a window unit.

Second is to put an ad on Facebook for free heating oil , It will go quickly . 

Landlord pays heat and water. 

Tenants running the heat and air conditioning at the same time.

I just told mine that I would leave them coiled up at the alley and the came about 2 weeks later and took theirs off the building. 

(Which does sound like an owner expense, especially if you advertised a heated pool.) get a couple more quotes> I’m guessing it depends on if it’s like a septic inspection during a sale in MN.  

This was back in 2016/17 when areas of Columbus like Olde Towne East and the area around Children's Hospital, for example, were just starting to heat up.