Mini Split Installation in Lebanon, TN
A new system here will heat from October through April and cool from May through September every year. Tell us about the house, and a licensed contractor who covers Wilson County will get in touch.
Tell us about the job
It takes about a minute.
What a mini-split in Lebanon has to handle
Wilson County asks for heat or cooling all twelve months. Winter nights run cold from December through February, averaging 31°F, and the heat has to hold from October clear through April, seven months on that side alone. Then summer afternoons average 88°F and the same system switches over to cooling for the five months after that.
A mini-split heat pump installed now has to meet 14.3 SEER2 for cooling and 7.5 HSPF2 for heating, the federal minimum for split-system heat pumps since January 2023. With almost 6 in 10 homes here heating on electricity, and the county seeing 11 winter storms and 260 damaging wind events over the past ten years, a system that starts back up on its own when the power comes back matters as much as the numbers on the label.
- 7 months
- October through April, your system heats
- 5 months
- May through September, it cools
- 31°F
- the average winter night it heats against
- 88°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
- Is a mini split worth it?
- For most homes here, yes. You get heat from October through April and cooling from May through September out of one system, so it's running in some mode nearly all year. Because each indoor head has its own thermostat, you can heat or cool just the rooms in use instead of running a central system for the whole house. At 31°F on a winter night, a mini split rated for cold climates still pulls heat from outside air, so it holds up through the season here.
- How many rooms can a mini split cover?
- One outdoor unit can run several indoor heads, and each head handles one room or open area on its own thermostat. How many a system can carry depends on the outdoor unit's capacity. A contractor sizes the outdoor unit and picks the number of heads based on the square footage and layout of the specific house.
- Can a mini split heat a whole house?
- Yes, with enough indoor heads placed room by room, and it needs to be sized for winter nights that average 31°F here. A single-head system will heat the room it's in well but won't carry the rest of the house. A contractor works out how many heads and how much capacity the house needs to stay warm through December, January and February.