A stuck open toilet flap water usage is only limited to the maximum per gallon flow from the fill valve, which despite what the literature says on flow rates will vary depending on time of day, static system pressure, and even the water temperature at different times of the year.  

I put my hand in the shower and the water temperature seems normal. 

A minimum temperature of 55 oF must be maintained inside your Rental Unit at all times; damage to the Premises resulting from you not doing so is your sole responsibility.  

Look and see what AC model they  haveLabel yours with permanent hot pink spray paintConcrete the unit into the ground -slab 5 inches deep and weld to it.Lock up disconnect box so they get electrocuted when they do the steal look on craigs list for the HVAC guy selling them and call him to come to random addressesAim cameras where the truck parks and don't let them know you can record platesMotion lights that make sound, there's some barking onesFence the yard, put a big dog there when it's vacant, thinking Doberman.Put sign up about dog who bites.Do you really know which neighbor did this? 

I would ask the seller to replace or repair the AC so it achieves the requires temperature differential.

When you say the hot water is substantially below, do you mean pressure or temperature? 

This would be easy, but I am concerned that this would interfere with the movement of the siding that is supposed to be allowed as the siding expands and contracts with changed in temperature.  

Package management systems, smart home devices including temperature control and digital locks, gym and recreation sports facilities, outdoor kitchen and dining areas, and pet services were the most in-demand amenities listed in that survey.

Looking to weld some brackets to metal fence posts I have installed.

Adding the opposite temperature when done at the same time is much less than doing it at a separate time (walls are already open, the pipe (typically PEX) can be run using same path, etc)  good luck