Am also having a solar contractor looking at putting up panels, with the hope that once the solar loan is paid off, we'd be getting a large amount of our heating for free (solar runs heat pumps which heats the building.)  

Heat would go right behind it.

Minimum Ceiling Height of 7 feet 6 inchesAdequate heating and hot water.  

We rented the property "as is" and made it clear that we would do no cosmetic repairs, just fix required things like heat/plumbing/electrical.

Is heat, water and hot water included in the $200 monthly fee? 

The demand for the units were high but the property had a serious heating problem where they were just burning cash to heat this 7 unit apartment complex with an undersized, 35 year old, oil furnace that may have never been serviced.

Sometimes it means you have a house with an odd layout, or a neighborhood that potential renters don't favor, or a house that will be more work/money than a renter wants to get into (old drafty windows for heating, huge lawn to mow, etc).

There is a dysfunctional heating system, broken and missing radiators, knob and tube wiring going to A panel with  fuses instead of circuit  breakers, and all of the bathrooms and the kitchen are got job.

Because, when I show the unit to prospective tenants, I want it to be a comfortable temperature (a/c or heat on), rooms lighted, and that everything is functioning.  

Be ready for the frozen bag of peas on the thermostat to crank the heat.