Safety first: These guides cover simple homeowner checks only. Stop and call a qualified technician for gas odors, burning smells, repeated breaker trips, refrigerant work, or equipment disassembly.

Why the Terminology Gets Confusing

Homeowners regularly receive proposals that use several equipment names for parts that work together. The clearest way to understand a system is to separate the indoor equipment, outdoor equipment, heat source, and air-distribution system.

A model number and a photo of each existing unit can help a technician identify exactly what is installed. Do not rely on the shape of the outdoor cabinet alone; an air conditioner and a heat pump can look nearly identical.

The Main Pieces

A furnace creates heat—usually by burning natural gas in many Utah homes—and includes a blower that moves air. An air handler also moves air but does not burn gas; it commonly contains an electric heat kit and works with a heat pump.

An air conditioner moves heat from inside to outside during cooling. A heat pump uses the same refrigeration process but can reverse direction to provide heating as well as cooling. The indoor evaporator coil is the refrigerant coil connected to the outdoor unit.

  • Furnace: creates heat and moves air
  • Air handler: moves air and may provide electric backup heat
  • Air conditioner: cooling only
  • Heat pump: heating and cooling
  • Ductwork: distributes conditioned air

What to Ask When Comparing Quotes

Ask the contractor to identify every included component, its model number, the fuel or power source, the number of stages, the thermostat requirements, and which existing components will remain. Confirm whether the outdoor unit is an AC or heat pump and whether backup heat is included.

Matching and Installation Matter

Indoor and outdoor components must be properly matched and configured. Equipment labels alone do not show whether airflow, duct capacity, refrigerant setup, controls, and sizing are correct. Ask how the system was sized and how performance will be commissioned after installation.

Trusted References

Sources & Further Reading

Common Questions

Frequently Asked Questions

Can a home have both a heat pump and gas furnace?

Yes. That is commonly called a dual-fuel or hybrid system.

Does an air handler mean I do not have a furnace?

Usually an air handler and furnace are alternative indoor units, but terminology on proposals can vary. Confirm with model numbers.