Connecticut housing judges usually frown on this kind of behavior from tenants.Be careful, if your tenant's heat has gone out AND the temperature in the unit has dropped below a certain temperature (usually 65℉) the property could theoretically be declared uninhabitable.

Would you rather be home based in the Bay Area with tons of things to do nearby, good weather, lots of nature, etc. or someplace with little culture, extreme temperatures, bland immediate environment, etc., etc.

In a great and perfect world your A/C would be zoned so you can set the temperatures for each floor, the norm however is that the thermostat is downstairs so the A/C turns off before it cools the upstairs.

For example, you should learn how to change a light bulb (yes, even in your fridge) and learn how to reach inside your fridge and adjust the temperature so it does not freeze your food.

Even as a precaution, the thermostats for the heat are programmed not to exceed certain temperatures, so that is controlled to an extent as well.  

Air circulation should keep the temperatures close to even. 

The third guy found the leak after using the sniffer, welded it, recharged it with freon and left his card saying he live in the neighborhood.  

Highest temperature in the next 10 days is 85°.Any advice appreciated!!

When the temperature and humidity  rise, it becomes crucial to keep our pets comfortable and safe.

He's been renting from the same landlord for 5 years, and he made a joke about filing suit against me if his kids get scalded with hot water while signing the section of the lease where he verifies the water heater temperature.