Mini Split Installation in Port St. Lucie, FL
A new system here will heat from January through January and cool from February through December every year. Tell us about the house, and a licensed contractor who covers St. Lucie County will get in touch.
Tell us about the job
It takes about a minute.
In Port St. Lucie, cooling is the year-round job
Summer afternoons here average 90°F, and cooling is what a mini-split is doing eleven months of the year, February through December. Heat only sees real use in January, on nights that average 55°F.
Any mini-split installed new has to meet the federal minimum for a split-system heat pump, 14.3 SEER2 for cooling and 7.5 HSPF2 for heating. St. Lucie County has also seen 13 damaging wind events over the last ten years, so the outdoor unit needs to be mounted and secured with that in mind.
- 1 months
- January through January, your system heats
- 11 months
- February through December, it cools
- 55°F
- the average winter night it heats against
- 90°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
Florida requires HVAC contractors to hold a state license.
The Construction Industry Licensing Board tests and records the contractor, not the job itself. So the license tells you the person or company doing the work passed the state's exam and is on file with the board, but it does not mean the board reviews this particular installation.
For a mini-split install, the check on the actual work happens locally. Most cities and counties in Florida require a permit for this kind of installation, and an inspector looks at the finished work before it is signed off. That inspection is what confirms the unit was installed correctly, the license confirms who was allowed to do it.
Sources: Florida Legislature · Florida Department of Business and Professional Regulation
- Is a mini split worth it?
- For most homes here, yes, since cooling runs nearly year round and heat is only needed in January. A mini split handles both with one system, and it keeps working when the power comes back on, no pilot to relight. It also lets you cool or heat just the rooms you use, which matters when a single room runs hot or cold and the rest of the house doesn't need it. A contractor can look at your home and tell you whether it fits better than what you have now.
- How many rooms can a mini split cover?
- A single outdoor unit can run one indoor head or several, depending on the system. Each indoor head is sized for the room it serves, so the number of rooms depends on how much heating and cooling those rooms need, not just a count of doors. A contractor sizes the outdoor unit and the heads together based on the rooms you want covered.
- Can a mini split heat a whole house?
- It can, if enough indoor heads are placed to reach every room, or if a ducted mini split system is used to distribute air the way a furnace would. A single head only heats the space it's mounted in, so a whole house needs either one head per room or a ducted setup sized for the house. Since heat is only needed here in January, the bigger question for most homes is whether the same system covers you well for the other eleven months. A contractor can size a system either way once they've seen the house.