Find what the higher price buys
Compare placement, line and drain routes, electrical work, mounting, permits, startup, and finish repairs. Ask who coordinates any separate qualified electrical or building work. If one installer includes more, request a revised comparison before treating the equipment premium as the whole price gap.
Then ask both installers these practical questions:
- Who can diagnose and repair these exact models locally?
- Which provider handles a warranty claim, and who pays diagnostic, travel, labor, refrigerant, or shipping charges where applicable?
- How is a needed part ordered, and what can be confirmed about current availability?
- What maintenance and registration conditions apply, and which documents will you receive?
The FTC recommends reading the written warranty's coverage, limits, and repair process before purchase. A long headline term is not a substitute for those details. FTC warranty guidance.
Try the controls before deciding
Ask for a demonstration of normal operation without the app as well as with it. Confirm which controller or adapter is included, any required internet or account, and what you can do if the app is unavailable. If several people will use the system, have the bidder show how they will change room settings without confusion. Get compatibility and any added costs in writing.
Our preference is the proposal with a supported room design, a workable installation, and a service path you understand. The more expensive option may be worthwhile if its specific benefits matter to your household. If the verified differences are minor and both installers own an equally complete job, the lower price may be the stronger choice.
Your next step: Ask each finalist to explain the price difference against the same scope sheet and exact model data. Decide on those differences rather than a broad reliability promise.