The average temperature in the United States is 50 degrees, but if you are standing in Death Valley or Gnome, Alaska, what you experience may feel very different.In the handful of MSAs that I monitor, I'm seeing YoY rent changes from (2%) to 8%.

About once a month I get a phone call that the heat isn't working correctly, not reaching the desired temperature.  

.- Set thermostat back to certain set temperature- Lock house and return the key to the lockbox (if needed)Any more than that and I think you quickly run into the "Well why am I paying for housekeeping services then?"

In my area it is common for landlords to pay for heat which promotes a lot of abuse with the system in that tenants keep the heat at unreasonably high temperatures and often open the windows in the dead of winter when it can be -20 out.

Let's just hope none of your tenants read your response and figure out what a pushover and easy target you are.Not aware of any laws in Chicago or Illinois that require a landlord to provide a property with a MAXIMUM temperature.

- If you are sharing Heat/Air with your tenant, how do you handle temperature adjustments?  

Do you have a set temperature limit?

Instead of "ceiling fan" in the description highlight "the cool breeze provided by the energy efficient ceiling fan creates the perfect temperature for getting a good night's rest". 

The best way I have found to avoid this is if you have the skills, weld a new cage on yourself.

They're inexpensive like a rubber roof, but the seams get welded so it's very durable like a PVC membrane.