Mini Split Installation in Nogales, AZ
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 Santa Cruz County will get in touch.
Tell us about the job
It takes about a minute.
Eleven months of work a year in Nogales
A mini-split here runs nearly the whole year, heat from November through April, cooling from May through September. Only one month goes without either. Winter nights average 33°F, and summer afternoons average 90°F, so the same unit carries both ends of the year.
Any new mini-split has to meet the federal minimum for a split-system heat pump, since the standard does not set a separate class for ductless units. That means 14.3 SEER2 for cooling and 7.5 HSPF2 for heating, at least. With winter storms and wind events both on record here, a unit that comes back on by itself once power returns is worth asking about too.
- 6 months
- November through April, your system heats
- 5 months
- May through September, it cools
- 33°F
- the average winter night it heats against
- 90°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
Arizona requires HVAC contractors to hold a state license.
The license is held by the Registrar of Contractors and it belongs to the contractor, not to any single job. It tells you this contractor is on the state's books, and that the state is who you'd answer to if something went wrong. It does not mean the state signs off on your particular mini-split once the work is done.
That sign-off comes from the local building office. A mini-split install in most cities and counties needs a permit before the work starts and an inspection once it is finished. The license tells you who is allowed to do the work. The permit and inspection tell you the work on your house was checked.
Sources: Arizona State Legislature · Arizona Registrar of Contractors
- Is a mini split worth it?
- For the right house, yes. A mini split heats and cools without ductwork, so it works well in a room addition, a garage conversion, or a house that never had ducts to begin with. Nogales winters drop near freezing at night and summers run near 90, so the unit needs to handle both, and a heat pump mini split is built to do that. A contractor can look at the house and say whether it makes more sense than extending existing ductwork.
- How many rooms can a mini split cover?
- One outdoor unit can run several indoor heads, so it can cover more than one room at a time. Each indoor head is sized to the room it serves, and a contractor works out how many heads and how much capacity the house needs. A single-zone system suits one or two rooms, while a multi-zone setup covers more of the house from one outdoor condenser.
- Can a mini split heat a whole house?
- It can, if it is sized and placed for that. A multi-zone mini split with a head in each main room handles whole-house heating the same way a central system does, just without ducts. What it takes depends on the layout, the square footage, and how well the house holds heat, so a contractor needs to see the house before saying what setup covers it.