01Home with usable ducts
A central ducted heat pump is a candidate when the existing air paths can support the design. Have the ducts assessed for size, condition, leakage, insulation, returns, airflow and available static pressure; an old furnace connection does not prove suitability. Match building and room loads to the exact equipment pairing and record duct corrections, zoning and backup distribution. Closed bedrooms, additions and basements still need a room-delivery check.
- Show duct changes and finish repairs in the price
- Confirm filter and service access
Review sizing and duct assessment →
Compare the complete ducted quote →
02Home without ducts
Ductless heads may suit unobstructed zones without ducting, subject to room loads and the equipment operating range. Map every room served, head location and air path; one head is not evidence that closed-door rooms will be comfortable. Show line sets, exterior penetrations, condensate fall or pump, electrical supply and winter access. Compare the visual impact, model sound data, filters and cleaning access with any proposed concealed or new-duct alternative.
- Price wall openings, line covers, drainage and restoration
- Record rooms that need another delivery path
Review room loads and head distribution →
Compare the complete ductless quote →
03Mixed layout or closed-door rooms
A mixed ducted and ductless concept, or retained heat in some rooms, needs a room-by-room plan. Identify which system serves each room with doors closed, the loads it must meet and who controls it. Compare head placement, air-transfer limits, zoning, different schedules and minimum output in mild weather. State how retained heat and new backup interact at the design condition. A hybrid label does not prove whole-home coverage, quiet operation or consistent temperatures.
- Identify unsupported rooms and accepted limitations
- Check drains, finish work and access for every zone
Review room and zone assessment →
Compare the complete mixed-system quote →
04Compare both paths on the same scope
Use the same house evidence and winter requirements for every proposal. Compare exact indoor and outdoor models, room delivery, controls, backup, ducts or heads, electrical work, condensate and defrost-water routes, mounting, permits, penetrations, carpentry, roofing, fire stopping, painting and exterior restoration. Separate HVAC work from finish allowances and assign trade coordination. Keep filter, cleaning and replacement access, commissioning records and owner instructions in the quote. Compare the installation price before uncertain rebates. Qualified project review must resolve capacity and site constraints before selection. If a proposal changes existing air-handling equipment or fan controls, ask how the home's current ventilation arrangement will be retained or changed. Record who reviews any dependency, what work is included or excluded, and who verifies the intended operation; do not assume the room heating and cooling comparison settles that scope.
- Keep room-load and model-specific performance evidence
- Record substitutions, exclusions and change responsibilities