Mini Split Installation in Morgan City, LA
A new system here will heat from November through March and cool from April through October every year. Tell us about the house, and a licensed contractor who covers St. Mary Parish will get in touch.
Tell us about the job
It takes about a minute.
A mini-split here works almost every month of the year
Morgan City asks a mini-split to run nearly twelve months straight. Summer afternoons average 90°F from April through October, seven months of cooling. Winter nights average 47°F from November through March, five more months of heat. There is barely a break between seasons.
A new system installed here has to meet the federal minimum for split-system heat pumps built from 2023 on. That means 14.3 SEER2 for cooling and 7.5 HSPF2 for heating. St. Mary Parish has seen 16 damaging wind events over the past ten years, and about half of Louisiana households lost power for a day or more in 2024. How the outdoor unit is mounted and wired matters as much as the rating on the box.
- 5 months
- November through March, your system heats
- 7 months
- April through October, it cools
- 47°F
- the average winter night it heats against
- 90°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
Louisiana requires HVAC contractors to hold a state license.
The Louisiana State Licensing Board for Contractors tested this contractor before handing out the license, and the board keeps a record of who holds one. That license belongs to the contractor, not to any single job, so it does not change from one installation to the next.
For a mini-split going in, that license is what stands behind the work itself. Separately, in most cities and counties this kind of installation needs a permit from the local building office, and an inspection once the work is done, which is where someone outside the contractor checks the job.
Source: Louisiana State Licensing Board for Contractors
- Is a mini split worth it?
- For most homes here, yes. Morgan City needs cooling from April through October and heat from November through March, so a system running nearly year round matters. A mini split handles both with one piece of equipment, and since it has no ducts, it avoids the losses that come with pushing air through a duct system. If your home already has good ductwork and a working central system, the case is weaker. A contractor can look at your home and tell you whether it fits.
- How many rooms can a mini split cover?
- A single outdoor unit can run one indoor head or several, depending on the system. Single-zone systems cover one room or one open area well. Multi-zone systems run several indoor heads off one outdoor unit, each with its own thermostat, so you can cover a handful of rooms and control them separately. How many your home can support depends on the size of the outdoor unit and the load in each room, which is something a contractor works out room by room.
- Can a mini split heat a whole house?
- It can, if there are enough indoor heads placed to cover the house and the outdoor unit is sized for the whole load. Winter nights here average 47°F, which is well within what a mini split heat pump is built to handle. What decides whether it heats the whole house is layout. A home with several closed-off rooms needs a head in each one, or in each cluster of rooms that share airflow, and that is something a contractor sizes room by room.