Also added covered outdoor entertaining space.What was the outcome?

Now that we are in February and approaching the warmer spring months (both for temperature and demand), you should see the rentals get snatched up much quicker.

The chimneys are in good shape too outdoors.

Could be those past bills were estimates and you now have an actual reading that “catches up” on past bills that were too low.Another thing is tenants running extension cords from hallway receptacles to run space heaters inside their units.If you have radiators, you want to keep heat on so that they do not have any potential for freezing up, but you don’t have to keep the temperature higher than say 60F.

-No outdoor fire pit - people love to have a fire and roast s'mores.

Thousands of people showed up for this event, which has not happened in 30 years.Berlin hosts the Federal and State prisons and trails for outdoor activities. 

You would have to calculate based on square footage, then consider variables like insulation, outdoor temperatures, etc.

I already have a 240vac panel out front behind a bush that I can add a breaker and run a line out to the parking area and install an outdoor rated level 2 charger.I beleive there is already a filter for looking for EV friendly house on Vrbo, Airbnb or both.

their rationale is that the outdoor air quality is affecting the indoor air quality because of the proximity to the fire.   

The pickets and guardrails are an interior composite MDF instead of outdoor treated wood (previous owner installed them).