They have claimed their thermostat changes temperature (ex. they set it at 72 before bed and wake up and it's 65 degrees in the morning.) 

Bring a thermometer and measure the temperature separately from the thermostat to see if they exaggerated the issue.

“There are other appropriate ways to bring down indoor temperatures, but a building’s electrical system and cost barriers must be taken into consideration,” wrote Debra Carlton, CAA’s executive vice president.Instead of costly mandates, CAA supports aligning the bill with AB 209, which directs the Department of Housing and Community Development (HCD) to develop practical recommendations for maintaining safe indoor temperatures by 2025.

Example with zipcode 11203:  https://www.zillow.com/rental-manager/market-trends/11203/Then if the market temperature on this page says warm or hot, I'll look up a house I might want to buy in that zipcode.

Swamp coolers, window AC units, central HVAC systems, and fans all cool down a home’s interior temperature.

A temperature sensor is placed on the incoming and outgoing hot/cold water lines to determine the BTUs consumed.

Particularly in winter  All I know is we have never had a complaint about temperature.240VAC powered tubs heat up pretty quick.

In my estimation (local utility costs vary as well as temperature) it is about $400 per month on average. 

My GC primed and painted over them a few times thinking they were just old, stubborn stains that needed extra product, but they kept coming back after each rainfall.I hired a water intrusion detection company to help me pinpoint the problem - they said the new roof seemed solid and that based on infrared and temperature readings, the moisture is coming in from the partition walls.

They have to adjust to the water temperature.