@BrianGain2@NEWSMAX It's not a necessity. If it were, none of us would be here. It's a luxury that makes life better and makes people more productive, but not a necessity.
I didn't have the time, patience or energy to explain this myself, so I'll let AI do it.
Under the laws of thermodynamics, it takes less energy to let your house warm up while you are gone and cool it down later than it does to maintain a constant, cooler temperature all day. Here is the breakdown using thermodynamics.
1. The Second Law and Heat Transfer Rate:
Fourier's Law of Thermal Conduction governs how heat enters your home. Reality: Heat flows from hot to cold, and the speed at which it flows depends directly on the temperature difference. If you keep your house at a constant 72°F on a 95°F day, $\Delta T$ remains large ($23^{\circ}\text{F}$), meaning heat pours into your house at a maximum rate all day long. If you turn the AC off and let the inside temperature rise to 78°F, $\Delta T$ drops to $17^{\circ}\text{F}$. Because the temperature difference is smaller, the rate of heat entering your house slows down. Over an 8-hour workday, a house that is allowed to warm up actually accumulates less total thermal energy than a house kept rigidly cool.
2. The First Law: Conservation of Energy
To cool the house back down, your air conditioner must remove the total amount of heat ($Q$) that entered during the day. Since the rate of heat entry ($\dot{Q}$) was lower while the house was warmer, the total thermal energy stored in the house's thermal mass is lower at the end of the day than the cumulative heat your AC would have had to pump out minute-by-minute to maintain 72°F. You do not pay more energy to "remove it all at once" because you are removing a smaller total quantity of heat than what would have leaked in over a sustained period.
3. Heat Pump Efficiency (Coefficient of Performance)
A minor counterargument often raised is the efficiency of the heat pump itself. In an ideal Carnot cycle, efficiency drops as the temperature difference increases: When your AC kicks on to cool the house from 78°F down to 72°F, it is working against a slightly higher internal temperature initially, which means the compressor operates efficiently. As the indoor temperature drops, the $\text{COP}$ technically degrades slightly compared to when it started, but this minor change in mechanical efficiency never outweighs the massive energy savings gained by reducing total heat infiltration all day. Furthermore, most modern systems (especially variable-speed inverter compressors) run much more efficiently when running continuously for one long cycle to pull down the temperature, rather than constantly cycling on and off in short bursts to maintain a static temperature. Short-cycling causes transient losses where the system consumes peak power before reaching steady-state operating pressures.
Summary:
Letting the house warm up minimizes the thermodynamic driving force ($\Delta T$) that pushes heat into your home. Less heat entering means less energy required to remove it.
@primerealmids91@NEWSMAX It runs the same all the time if it's on. There is no harder. And mold will not start to grow because it's a couple of degrees warmer. The humidity will remain the same if the unit is on. Leave it on 24/7, I don't care, but educate yourself on facts.
When I leave home and it's hot outside, I turn it up just a bit. Because, when I come in from the heat, 77 feels great. Once I acclimate to 77 and start to feel warm, I turn it down a couple of degrees. If I'm still too warm, I turn it down another couple of degrees. That's why God invented the thermostat and not simply an on/off switch.
@USCCB What sound does a Haitian boy make when a priest grabs his dick? He doesn't make a sound. His mouth is full of another priest's tiny dick. I can do this all day pedo cult boys!
@USCCB Calm down! There are plenty of white children to abuse. This is not the worst thing that has ever happened to priests. Expand your mind. You survived centuries abusing only white kids. You'll survive this. Jeez...
@Hestia_Esq I'm 5'8" and I thank vapid women for helping me make my decision to leave my money to a Thai whore. Had I been a few inches taller, I might have left it to a cunt.
Request denied, slave. You obviously don't know how hard it is to make a billion dollars in profit a year, with only a half billion in tax-payer subsidies. You had your chance, now back to you minimum wage job and say thank you. The 2nd Amendment gave you guns, but you're crying on X. Work harder slave!