Mini Split Installation in Columbus, OH
A new system here will heat from October through May and cool from June through September every year. Tell us about the house, and a licensed contractor who covers Franklin County will get in touch.
Tell us about the job
It takes about a minute.
What a mini-split here needs to handle
Columbus asks a mini-split to run nearly year round. Heat from October through May, cooling from June through September, that's every month covered by one system or the other. Winter nights averaging 24°F mean the heat pump side has to keep working when it's genuinely cold outside, not just cool. Summer afternoons near 84°F put real load on the cooling side too.
Any mini-split installed new has to clear the federal minimum for a split-system heat pump, 14.3 SEER2 for cooling and 7.5 HSPF2 for heating. That's the floor, not a feature to shop for. What matters more is sizing it to a Columbus winter and a Columbus summer, so it isn't straining on the coldest nights or the hottest afternoons.
- 8 months
- October through May, your system heats
- 4 months
- June through September, it cools
- 24°F
- the average winter night it heats against
- 84°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
In Ohio, HVAC licensing for homes is left to the counties.
Franklin County sets its own rule for who can do this work, since Ohio leaves HVAC licensing to the counties rather than handling it at the state level. Whether a contractor is tested and on record depends on where the house sits, not on a state license. Ohio's definition of a home contractor calls for at least $250,000 in liability insurance, but that is a definition written into state law, not a license the state issues or checks.
For a mini-split installation, the protection here comes from the local building office rather than a state license. Most cities and counties require a permit for this kind of installation, with an inspection once the work is done, and that inspection is what confirms the unit was put in correctly.
Source: Ohio Legislative Service Commission
- Is a mini split worth it?
- For the right room or house, yes. A mini split heats and cools without ducts, and modern units are built to hit 14.3 SEER2 and 7.5 HSPF2 minimums, so they run efficiently in both directions. Here winters drop to 24°F on average and summers reach 84°F, and a heat pump mini split handles both without a separate furnace and AC. Whether it makes sense for your house depends on the space and what you're heating or cooling now, so a contractor should size it against your actual rooms before you decide.
- How many rooms can a mini split cover?
- One indoor head covers one room or one open area well. If you need more rooms covered, a multi-zone system runs several indoor heads off a single outdoor unit, each with its own thermostat, so bedrooms and living areas can be set differently. How many zones one outdoor unit can run depends on the system, so a contractor needs to look at your floor plan and room sizes before saying how many heads your house needs.
- Can a mini split heat a whole house?
- It can, if it's sized and placed for that. A multi-zone mini split with a head in each main room can replace a furnace, and since homes here need heat from October through May, the unit has to be sized for a 24°F night, not just a mild one. A single indoor head heats the room it's in and maybe an open space next to it, not the rest of the house. A contractor can run the room-by-room math and tell you what your house actually needs.