Mini Split Installation in Pascagoula, MS
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 Jackson County will get in touch.
Tell us about the job
It takes about a minute.
Pascagoula asks a mini-split to run all year
Winter lows here average 42 degrees, mild enough that a heat pump handles it without much strain. Summer afternoons average 90, and that's the load your new system will carry most of the year, since cooling runs April through October here, seven months out of twelve. Between the two seasons there's no real break. Something is asking your mini-split for heat or cooling in every month of the year.
Any unit 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. With most homes here on electric heat, the outdoor unit works through both seasons, so where it gets mounted and how it's protected matters. Jackson County has seen 29 damaging wind events over the past ten years, and 30% of Mississippi households lost power for at least a day in 2024. A mini-split with a standard compressor will start back up on its own once power returns.
- 5 months
- November through March, your system heats
- 7 months
- April through October, it cools
- 42°F
- the average winter night it heats against
- 90°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
Mississippi requires HVAC contractors to hold a state license.
The state board tests contractors before they can hold this license, and it keeps a record of who holds one. That license belongs to the contractor, not to any single job, so the same license that qualifies someone to install a furnace also covers a mini-split installation.
For this job, that license is what stands behind the work, but it is not the only check. Most cities and counties in Mississippi require a permit before a mini-split goes in, and an inspection once it is done, separate from anything the state board does.
Source: Mississippi State Board of Contractors
- Is a mini split worth it?
- For most homes here, yes, since a mini split runs all 12 months, providing heat from November through March and cooling from April through October. It heats and cools without ducts, so a room addition or a house that never had central air can get both from one system. It also runs on electricity, and with most homes here already heating that way, it fits what the house is already set up for. A contractor can look at your specific rooms and tell you whether it makes sense for your situation.
- How many rooms can a mini split cover?
- A single outdoor unit can run one indoor head or several, with each head serving its own room or open area. Each head is sized to the space it serves, so a bedroom and a living room would likely use different sized heads on the same outdoor unit. The right number for a given house depends on the layout, the square footage of each room, and how those rooms are used. A contractor can walk the house and size a system to match it.
- Can a mini split heat a whole house?
- It can, if there is an indoor head in enough rooms to cover the house and the outdoor unit is sized for all of them together. Homes here need heat from November through March, so the system has to be sized to carry that full stretch, not just take the edge off a cold morning. Houses with an open layout often need fewer heads than houses with many closed-off rooms, since a single head can only heat the space the air reaches. A contractor can look at the floor plan and say how many heads the house needs and where they should go.