Mini Split Installation in Norman, OK
A new system here will heat from November through April and cool from May through September every year. Tell us about the house, and a licensed contractor who covers Cleveland County will get in touch.
Tell us about the job
It takes about a minute.
What a mini-split in Norman has to handle
Norman needs heat or cooling 11 months out of the year. Winter nights average 30°F from December through February. Summer afternoons run 92°F. A mini-split here does not get much of a break.
A new mini-split has to meet the federal minimum for a split-system heat pump, 14.3 SEER2 for cooling and 7.5 HSPF2 for heating. That applies whether you are replacing a unit or adding a new zone, and it is the floor a new system starts from, not an upgrade you pay extra for.
- 6 months
- November through April, your system heats
- 5 months
- May through September, it cools
- 30°F
- the average winter night it heats against
- 92°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
Oklahoma requires HVAC contractors to hold a state license.
The Construction Industries Board tests the contractor and issues the license to the business. It covers the contractor, not this one mini-split job.
For an installation like this, that license is what stands behind the work. In most cities and counties, the local building office adds a separate check, a permit for the installation and an inspection once the work is done. That inspection covers this job, in this home, apart from the state license.
Source: Oklahoma State Legislature
- Is a mini split worth it?
- For most homes it is, especially a room or addition that a furnace or central system does not reach well. A mini split heats and cools that space directly, and with winter lows around 30°F and summer afternoons near 92°F here, it needs to handle both jobs, not just one. Any unit installed new has to meet 14.3 SEER2 for cooling and 7.5 HSPF2 for heating, so efficiency is not something you have to shop for separately. A contractor can look at the room and tell you what size unit it needs and what to expect from it.
- How many rooms can a mini split cover?
- A single-zone system covers one room or open area. If you need more than one room covered, a multi-zone system runs several indoor units off one outdoor unit, each with its own thermostat, so a bedroom and a living room can each be set where the people in them want it. How many zones one outdoor unit can run depends on the model and the size of each room. A contractor can size the system to the rooms you actually want covered.
- Can a mini split heat a whole house?
- It can, but it takes a multi-zone system with an indoor unit in each room or area, not just one. Homes here need heat November through April, and on a 30°F night every zone has to keep up, so the system has to be sized for that from the start. Whether a whole-house mini split makes more sense than extending a furnace or heat pump system depends on the house itself, its layout and how it is built now. A contractor can walk the house and tell you what it would take.