With temperatures soaring, some homeowners have unrealistic expectations for their home.
Generally speaking, systems are designed to perform for a 20˚ degree differential from outdoor temperature to indoor temperature calculated as a YEARLY AVERAGE.
Manufacturers take a YEARLY temperature average, and design a system for a certain square footage. This is why when the heat index is 100˚ degrees or more, expecting your home to get into the low 70’s IS NOT a REALISTIC expectation.
20˚ degrees differential from outdoor to indoor temperature is all your system is designed to do, to ask it to do more could be damaging your system and causing you to spend too much on your energy bills.
OVERSIZED units, will SHORTCYCLE. Which means they will turn on and off over and over and not run enough to dehumidify your home. YOU WILL have a humidity issue in South Florida with an oversized unit in the winter if you choose to oversize your unit, you can bet on it.
If your unit cannot do 20˚ degrees for an extended period, let us check your system for (dirty filters, leaky ductwork, and dirty coils) as to keep your system performing well.
Also, a high efficiency mini split system may be the solution for the extra cooling you may need, solely in hotter months. These units can be turned off during cooler months and prevent the high humidity issues created by a single, oversized unit.