Mini Split Installation in Columbus, MS
A new system here will heat from November through March and cool from May through September every year. Tell us about the house, and a licensed contractor who covers Lowndes County will get in touch.
Tell us about the job
It takes about a minute.
Ten months of work a year in Lowndes County
A mini-split here runs most of the year. Heat from November through March, cooling from May through September, only two months off in between. Winter nights average 35°F and summer afternoons hit 91°F, so the unit swings between both jobs without much rest.
More than 6 in 10 homes here heat with electricity, which puts real weight on a heat pump doing that job well. New units have to meet 14.3 SEER2 for cooling and 7.5 HSPF2 for heating, the federal minimum for split systems since January 2023. Lowndes County has also seen 110 damaging wind events and 6 winter storms over the past ten years, and across Mississippi, homes went without power for a day or more often enough in 2024 that it's worth asking how the installer sets up the unit to come back on by itself once power returns.
- 5 months
- November through March, your system heats
- 5 months
- May through September, it cools
- 35°F
- the average winter night it heats against
- 91°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
Mississippi requires HVAC contractors to hold a state license.
The license is held by the contractor, not issued for this particular job. Mississippi's State Board of Contractors tested and records the person or company before they're allowed to take this work on, so when you hire a licensed contractor for your mini-split installation, you're hiring someone the state has already vetted, not just someone who filed paperwork.
The license covers who's doing the work. Whether the installation itself gets checked comes down to your local building office. In most cities and counties, an installation like this needs a permit and an inspection once the work is finished, and that's what catches a bad refrigerant line or a unit mounted wrong, separate from anything the state license accounts for.
Source: Mississippi State Board of Contractors
- Is a mini split worth it?
- For the right room, yes. A mini split heats and cools without ducts, so it works well for a room addition, a garage, or a house that relies on window units. Columbus needs heat five months of the year and cooling five months, so the system earns its keep most of the year here. A contractor can look at the space and tell you whether it fits better than the alternative you're weighing.
- 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 handles one room or one open area, so the number of rooms you can cover comes down to how many heads the outdoor unit supports and where they go. A contractor sizes the system to the rooms you want covered, not the other way around.
- Can a mini split heat a whole house?
- It can, if enough indoor heads are placed to reach every room. Winter nights in Columbus average 35°F, so the heat pump has to be sized to keep up on the coldest nights, not just the mild ones. A house with an open layout may only need a couple of heads, while one with many closed-off rooms needs a head in most of them. A contractor can walk the house and lay out how many zones it would take.