Use the layout as your starting point

Central air conditioning distributes cooled air through a duct system. Ductless equipment uses indoor units to serve selected spaces. A home with suitable existing ducts may be a good candidate for central cooling, while an addition or a room without ducts may deserve a different approach. Neither option should be selected on floor area alone.

Think about the rooms you actually use

Explain where you feel uncomfortable and when it happens. Sun exposure, insulation, air leakage and airflow can contribute to a hot room. Adding more cooling capacity without considering those factors may not solve the problem. For ductless equipment, ask about indoor-unit placement, airflow direction, condensate drainage and the proposed outdoor-unit location.

Ask what the quote covers

Confirm the indoor and outdoor model numbers, controls, electrical work and any duct changes. Ask how the equipment will be sized and commissioned. If you want heating as well as cooling, discuss a heat-pump option and its cold-weather performance. Comfort Nest can help compare the practical choices before you commit to an installation.