The British Thermal Unit (BTU) term is more commonly used in air conditioning as a rating that tells you the energy that an A/C device can emit. The higher the BTU rating in air conditioners, the more the cooling intensity.
You need to correctly calculate your BTU rating to ensure that you have the right temperature at the right time in your living room or office. If you use a relatively small HVAC system for your room, it can’t bring a comfortable temperature. Instead, it will constantly run without attaining the appropriate dehumidification and temperature levels. Too high BTU ratings for your room can also cause early shut-offs, which leave the room improperly dehumidified, and the excess moisture can dampen the environment.
Failing to set the right BTU would trigger direct and indirect health conditions for you and perhaps the pets. Having to subject your body to irregular temperature and humidity would also affect your performance or mood. Therefore, it is essential to ensure that you buy an HVAC system with the appropriate BTU rating for the size of your room.