How HVAC Works

What Is a Heat Pump?

A heat pump is a system that can both heat and cool a home by moving heat rather than generating it directly, reversing its refrigerant cycle depending on the season. Ductless mini-split systems are commonly heat pumps, providing both functions from one piece of equipment.

This definition is pending sign-off from a licensed HVAC reviewer.

Why It Matters to You

Because a heat pump handles both heating and cooling, it can simplify equipment needs for additions or zones that would otherwise need separate heating and cooling solutions.

Practical Guidance

Ask specifically whether a mini-split or system you're considering is a heat pump (heats and cools) or cooling-only — the terminology is sometimes used loosely in casual conversation.

Frequently Asked Questions

Is a heat pump the same thing as an air conditioner?

Not exactly — an air conditioner only cools, while a heat pump can both heat and cool by reversing its refrigerant cycle. Many ductless mini-splits are heat pumps for this reason.

Can a heat pump fully replace a furnace in a Chicago winter?

This depends on the specific equipment, the home's heat loss, and design choices best evaluated by a technician for your specific situation — we don't have a blanket answer that applies to every home.

Do heat pumps have separate efficiency ratings for heating and cooling?

Yes — a heat pump carries a SEER2 rating for cooling mode and a separate rating (like HSPF2) for heating performance, since the two functions are measured differently.

See it in context

Ductless Services