Cost for updating electrical system
So a 3,000-square-foot home located in south Texas will likely require a larger and thus more expensive central air system than a 1,200-square-foot home in Minnesota.
The size of a unit is denoted by its BTUs — or "British Thermal Units." This measures how much energy is needed to raise one pound of water one degree Farenheit, and HVAC units with higher BTUs can cool larger spaces.
Installing smart thermostats that regulate air conditioning and cooling cycles help make your new HVAC system more energy efficient.
The average prices for new thermostats range from 0 to 0 nationwide, adding to the total installation cost if you need a new one.
You'll enjoy better energy savings and more efficient cooling with these air conditioning units because most of the components are inside, and the mechanicals will last longer, since they're not exposed to the elements.A two-stage air conditioner operates at two different capacities, defaulting to a lower capacity when cooling demands aren't as high, thereby saving energy and money.A packaged central air conditioning system combines all three elements into one single outdoor unit.A high SEER rating means you'll be paying less over time in utility bills, but may pay more upfront.Look for an air conditioner with a higher EER rating if energy efficiency is important to you.