Mini Split Installation in Medford, OR
A new system here will heat from October through June and cool from July through August every year. Tell us about the house, and a licensed contractor who covers Jackson County will get in touch.
Tell us about the job
It takes about a minute.
Medford asks a mini-split to run almost all year
Nine months of heat, October through June, then two months of cooling in July and August. Only one month off. That is 11 months of the year your mini-split is doing real work, not sitting idle.
Winter nights average 31°F here, mild enough that a heat pump keeps up without much strain. Summer afternoons average 80°F, so the cooling side isn't working as hard as the heating side. Any new system installed here has to meet the federal minimum for split-system heat pumps, 14.3 SEER2 for cooling and 7.5 HSPF2 for heating. Jackson County has also seen 64 winter storms and 69 damaging wind events over the past ten years, and outages happen. Worth asking your installer how the system handles a power interruption.
- 9 months
- October through June, your system heats
- 2 months
- July through August, it cools
- 31°F
- the average winter night it heats against
- 80°F
- the average summer afternoon it cools against

NOAA nClimDiv, 1991–2020 normals
Oregon requires HVAC contractors to hold a state license.
The state license comes from Oregon's Construction Contractors Board, and it belongs to the contractor, not to any single job. That means the CCB has tested and keeps a record of the business before it ever sets foot in your home. Oregon does carve out an exception for small jobs, work under $1,000 doesn't require a licensed contractor, but a mini-split installation runs well past that.
For this job, the CCB license is what stands behind the person doing the work. On top of that, most cities and counties in Oregon require a permit for installing a mini-split, and an inspection once it's done. That inspection is what catches a bad line set connection or a unit that wasn't mounted right, the part of the job where a mistake actually costs you later. The license tells you who's accountable. The permit and inspection tell you the work itself got checked.
Source: Oregon Legislative Assembly
- Is a mini split worth it?
- For most homes here, yes, because it heats and cools without ductwork and handles both jobs with one system. Medford needs heat from October through June and cooling in July and August, so a system that covers both seasons is working nearly all year. It also runs on electricity, which already heats over half the homes here, and it lets you control temperature room by room instead of running the whole house at once.
- How many rooms can a mini split cover?
- It depends on how many indoor heads the outdoor unit runs, and that number varies by system. Each head heats and cools only the room it is mounted in, so the count comes down to how many rooms need their own temperature control and how the house is laid out. A contractor can look at the house and size the system to match the rooms you want covered.
- Can a mini split heat a whole house?
- It can, if enough indoor heads are placed to cover every room that needs heat. A single head only heats the room it is in, so a whole-house setup means a multi-zone system with a head in each main area, not one unit doing all the work. With winter lows averaging 31°F here from December through February, a contractor can work out how many zones the house actually needs.

