Len the Plumber commercial truck on transparent background.

How Do Heat Pumps Work?

Posted on: August 27, 2025

image of heat pumps

How Do Heat Pumps Work?

Looking for an energy-efficient way to both heat and cool your home? A heat pump could be the perfect solution. These systems don’t generate heat the way a furnace does—they transfer it, making them a smart choice for homes in Philadelphia’s four-season climate. Here’s how they work.

What Is a Heat Pump?

A heat pump is a versatile HVAC system that can provide year-round comfort. Instead of burning fuel or creating heat, it moves heat from one place to another—similar to how a refrigerator works, but on a whole-home scale.

  • In summer: The system removes heat from inside your home and transfers it outside, leaving cool air behind.

  • In winter: The system pulls heat from the outdoor air—even when it’s cold—and brings it inside to keep your home warm.

How Heat Pumps Cool Your Home

During hot Philadelphia summers, a heat pump works just like a central air conditioner:

  • Refrigerant absorbs heat from the indoor air.

  • The heat is transferred outside.

  • Cool, conditioned air circulates back through your home.

The result? Consistent, comfortable cooling without the need for a separate AC unit.

How Heat Pumps Heat Your Home

Believe it or not, even cold winter air contains heat energy. A heat pump is designed to capture that energy and bring it indoors:

  • The outdoor unit extracts heat from the air.

  • Refrigerant carries the heat indoors.

  • The indoor unit distributes warm air throughout your home.

On extremely cold days, your system may rely on a backup heat source—such as electric resistance heating or a furnace—to help maintain comfort.

Heat Pumps vs. Traditional Systems

Heat pumps offer several advantages compared to standard HVAC setups:

  • Heating and cooling in one system: A heat pump replaces both your furnace and AC.

  • Lower energy use: Because they transfer heat instead of generating it, heat pumps can reduce utility costs.

  • Ductless options: Great for older homes or additions without ductwork.

For many Philadelphia homeowners, heat pumps are an efficient option for year-round comfort.

When to Call an HVAC Expert in Philadelphia

You should reach out to a professional if:

  • Your heat pump isn’t switching between heating and cooling

  • You notice weak airflow or strange noises

  • You’re interested in installing a new system

The team at Len The Plumber Heating & Air offers fast, local service throughout Philadelphia and the surrounding area.

Frequently Asked Questions

Do heat pumps work in cold Philadelphia winters?
Yes. Modern heat pumps are designed to operate efficiently in freezing temperatures, often with backup heat for very cold days.

Are heat pumps cheaper to run than furnaces?
In many cases, yes. They’re especially cost-effective in milder climates like Philadelphia.

How long do heat pumps last?
With proper maintenance, most heat pumps last 10–15 years.

Can a heat pump replace my AC?
Yes. A heat pump can take the place of both an air conditioner and a furnace.

How much does a heat pump cost in Philadelphia?
Installation typically ranges from $4,000 to $10,000+, depending on the size of your home and system features.

Heat Pump Service in Philadelphia

Whether you’re ready to install a new heat pump or need service for your current system, Len The Plumber Heating & Air has you covered. Our team provides expert repairs, maintenance, and installations to keep your home comfortable year-round.

Call today to schedule heat pump service with our Philadelphia HVAC team!

What to Expect
From Len The Plumber Heating & Air
Experienced
Technicians

Our local team of 120 technicians has skills you can trust and provide the care you deserve.

High-Quality
Experience

We aim to keep our customers’ lives moving, which means we provide thorough and attentive service every time.

Simplified Home
Services

Minimize stress and maximize convenience with our one-stop shop for HVAC and plumbing services.

24/7 Availability
& Reliability

No matter when you need us, we’re here for you with same day and emergency services you can depend on.

Upfront Pricing

We ensure you know the cost before work begins and don’t charge extra for evening, weekend, or overtime service.