HVAC systems help us a lot to keep in the spaces where we work or live a humidity and a temperature as close as possible to the thermal comfort zone during the acute periods of heat. It is indicated that the difference in temperature outside and inside is not very significant.

Like it or not, we humans are sensitive to the weather, and the environment sometimes influences us more than we realize, both in terms of mood and productivity.
You can’t deny that on a sunny day you have a better mood, both personally and professionally, than on a rainy morning or evening.
However, not many people know that these sensations are related to the degrees in the thermometers inside the house, not just outside. That is why, in the following, we will talk about the optimal temperature in the house.
Optimal temperature in the house in summer. This should ideally be 50 degrees Fahrenheit lower than the outside, no more! Therefore, a temperature of 73-75 degrees during the day and 65-68 degrees at night is recommended.
Optimal temperature in the house in winter. Surprisingly or maybe not, during the winter, the temperature in the house should be setting around 68-71 degrees, maybe a little more in the bathroom, if you have this possibility;
Optimal temperature for babies. Contrary to popular belief, babies do not need excessive heat to feel good and not catch a cold. Thus, values such as 71-75 degrees during the day and 17-20 degrees during the night are absolutely fine;
The optimum temperature in an uninhabited house. Many people who own a property where they do not live tend to completely turn off the heat during the winter, but this is not beneficial, favoring early degradation, the accumulation of moisture in the walls and the decrease of the functionality of the installations. In conclusion, we recommend that you heat that house a little.

Elderly people are advised by specialists to avoid sudden changes from cold to hot or vice versa because they are more sensitive.

Also, in addition to the correct setting of the air conditioner temperature, it is important to make sure that the air conditioner is regularly sanitized to ensure healthy indoor air.

Also, it is essential to regularly clean and maintain your equipment to prevent premature damage of the air conditioning system.