Systems index
Heat Pump System Types: Ducted, Ductless, and Cold-Climate
Compare heat pump system families side by side: ducted central systems, single- and multi-zone ductless mini-splits, cold-climate units, packaged, geothermal, air-to-water, dual-fuel, and PTAC.
Ducted Central Heat Pumps
Whole-home heating and cooling through existing or new ductwork, sized to a Manual J load.
System buyer guideDuctless Mini-Split (Single-Zone)
One outdoor unit paired with a single indoor head for a room, addition, or ductless retrofit.
System buyer guideMulti-Zone Mini-Split
One outdoor unit serving several indoor heads for independent room-by-room control.
System buyer guideCold-Climate Heat Pumps
Hyper-heat models rated to hold capacity into subfreezing temperatures.
System buyer guideDIY Mini-Split
Pre-charged, quick-connect mini-splits a homeowner can install within code and warranty limits.
System buyer guidePackaged Heat Pumps
A single outdoor cabinet holding all components, common where indoor space is limited.
System buyer guideGeothermal Ground-Source
Ground-loop systems that trade higher install cost for very high efficiency.
System buyer guideAir-to-Water Heat Pumps
Heat pumps that produce hot water for hydronic radiators, floors, or fan coils.
System buyer guideDual-Fuel Hybrid Systems
A heat pump paired with a gas furnace that covers the coldest hours.
System buyer guidePTAC and Through-Wall Heat Pumps
Self-contained wall units for single rooms, additions, and light commercial spaces.