Where to Buy a Daikin Mini Split (Without Losing the 12-Year Warranty)

Where to buy a Daikin mini split is really two questions, and the second one matters more than the first. Anyone can find the unit online; our editor just did, buying the Oterra 12K for his own replacement. Keeping the 12-year warranty attached to it is the part with a rule you cannot skip, so let’s do that part first.

The one rule: online purchase, licensed install

Daikin’s warranty certificate excludes equipment ordered over the internet unless it is installed by a dealer adhering to all applicable federal, state, and local codes and licensing requirements, and its warranty page carries the same language. In practice: buying from any retailer below is fine, self-installing what you bought is not. Hire a licensed installer, keep the invoice, and register the system within 60 days of installation, or coverage falls from 12 years to 5, and an unlicensed install path can leave you with none. The full breakdown of that trap, including why MRCOOL’s DIY line is built to dodge it, is in our warranty comparison.

Two buying-channel facts worth knowing before the price table. Daikin’s own distributor network is aimed at dealers and contractors, and its locator points homeowners toward installing contractors rather than a cash-and-carry counter; local supply houses typically sell through contractor accounts. And none of the online retailers below display an authorized-dealer credential we could verify, so treat authorization as unverifiable rather than assumed. The warranty language above is what actually protects you, and it hinges on the install, not the storefront.

Verified prices, July 19, 2026

The cards above are every major online listing we verified for the Oterra 12K 115V system, model RXQ12ASBU9 outdoor and FTXQ12ASBU9 indoor, against a list price of about $2,321. Spread at verification: $1,283 to $1,511, with The AC Outlet cheapest and the only one bundling a labor warranty. Prices move; every card links the live listing, and the verification date is printed on each so you know exactly how stale our numbers are.

A note on retailer warranty blurbs: HVACDirect’s listing page shows a generic 10-year compressor and 7-year parts line that does not match Daikin’s actual Oterra certificate. Retailer boilerplate does not govern your coverage. The certificate does, and for the Oterra that means 12-year parts with registration and a qualifying install.

Don’t skip the installer’s quote

Before ordering from any of these, ask your installer two questions: will you install equipment I supply, and what is your price if you supply it? Some installers decline owner-supplied equipment or charge extra for it, and some buy through distribution at prices that close most of the online gap once bundled into the project. The cheapest path is sometimes the online unit plus a willing installer, and sometimes it is the installer’s package. You only find out by getting both numbers.

If you landed here mid-decision rather than ready to buy: the sizing call between 9,000 and 12,000 BTU and the electrical picture are the two things to settle first, and the mini split hub collects everything, including what it means when your current unit is freezing up.