1. Choosing a system from tonnage alone
Equipment selection should consider the home’s cooling load, layout, insulation, windows, and airflow. A larger unit is not automatically a better solution. Ask how the recommendation fits the property.
2. Comparing only the equipment price
The full installed scope can differ between proposals. Compare removal, connections, controls, drainage, startup, access work, and exclusions alongside the equipment model.
3. Leaving existing airflow problems unexplained
A new system may not correct a restricted return or other duct issue. Tell the contractor which rooms are uncomfortable and ask how those concerns will be evaluated.
4. Ignoring the existing connections
Electrical, refrigerant, drainage, and other equipment-specific connections must be reviewed. Do not assume every old component can remain with a new system.
5. Treating an efficiency rating as a savings guarantee
SEER2 helps compare equipment efficiency, but actual use depends on the home, weather, settings, and installation. Consider comfort and total installed cost as well as the rating.
6. Overlooking equipment access and clearance
Outdoor and indoor equipment need suitable placement and service access. Discuss mounting, clearances, airflow, and the route for connections before installation.
7. Choosing controls without checking compatibility
A thermostat must work with the equipment and the functions you expect to use. Discuss staging, communicating controls when applicable, and the selected thermostat as part of the proposal.
8. Confusing parts coverage with labor coverage
Ask which parts, compressor, and labor warranties are included. Review registration, maintenance conditions, and optional coverage in the written documents.
9. Leaving maintenance out of the plan
New equipment still needs appropriate filters and upkeep. Learn the equipment instructions and discuss the recommended service schedule. Keep maintenance and warranty records together.
10. Keeping changes to the home out of the conversation
Additions, remodeled rooms, new windows, or changes in occupancy can matter to the installation plan. Tell the contractor what has changed and what you want improved before choosing equipment.
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