It’s so damn confusing to buy a heat pump. Because there are different sizes, efficiency ratings, system types, brands, and features, and the most expensive option isn’t always the best one for your home.
Before you buy, focus on five things:
- Proper Sizing
- Heating And Cooling Efficiency
- System Type
- Total Installed Cost
- The Quality Of The Installation.
You’ll also want to know which features are actually worth paying for, what the newer A2L refrigerants mean for your purchase, and which rebates or incentives are still available in 2026.
What is that & how does it work? Let’s give you a close look.
| TL;DR The best heat pump isn’t necessarily the most expensive or highest-rated model. Choose one that is properly sized, suited to your climate, affordable to operate, and professionally installed. A Manual J load calculation and a complete installation quote can help you make the right choice. |
What Should You Know Before Buying a Heat Pump?
A heat pump can handle both heating and cooling, so you don’t need a separate AC and furnace to do two different jobs. In summer, it moves heat from your home to the outside. In winter, it reverses the process, bringing heat inside.
That makes a heat pump worth considering if you’re replacing an old AC and furnace, want to move away from gas heating, or simply want one system for year-round comfort.
Before you make the switch, though, look at a few things around your home:
- Heating and cooling needs
- Ductwork
- Electrical service
- Existing equipment
- Climate
The biggest mistake is choosing a system based only on its brand or efficiency rating. A high-end heat pump won’t perform well if it’s the wrong size or installed poorly.
How to Choose the Right Heat Pump Size?
Before buying a heat pump, look at your home’s size, local climate, insulation, and the total installation cost. A modern heat, pump can handle both heating and cooling by moving heat rather than burning fuel, which can help lower energy use and monthly utility costs over time.
The mistake is assuming you can choose a size based on your home’s square footage. You can’t.
It varies on your home and environmental quality. That’s why a good HVAC contractor should perform a Manual J load calculation before recommending a heat pump.
It calculates how much heating and cooling your home actually needs and gives the contractor a starting point for selecting the right equipment.
You’ll usually see heat pump sizes listed in tons.
One ton equals about 12,000 BTU of cooling capacity per hour, so a 3-ton system provides roughly 36,000 BTU/hr of cooling. It changes depending on your home size, like:
| Heat Pump Size | Approx. Cooling Capacity |
| 1.5 ton | 18,000 BTU/hr |
| 2 ton | 24,000 BTU/hr |
| 2.5 ton | 30,000 BTU/hr |
| 3 ton Goodman | 36,000 BTU/hr |
| 4 ton | 48,000 BTU/hr |
| 5 ton | 60,000 BTU/hr |
These numbers are only a way to understand the sizing labels. They aren’t a recommendation based on square footage. Your home’s actual heating and cooling load should determine which size you need.
Heat Pump Size Calculator
We use your home’s square footage as a starting point when estimating the right heat pump size. As a quick guide, we typically use 20 to 30 BTUs per square foot, or about 1 ton (12,000 BTUs) for every 500 square feet of living space.
For example:
- 1,200 sq. ft. home: approximately 2 tons (24,000 BTUs)
- 1,800 sq. ft. home: approximately 3 tons (36,000 BTUs)
- 2,400 sq. ft. home: approximately 4 tons (48,000 BTUs)
This gives us a useful starting point, but square footage alone does not determine the final system size. Our contractor can evaluate factors such as your home’s insulation, windows, layout, climate, and heat gain and loss. A professional Manual J load calculation provides the detailed sizing needed to avoid installing a system that is too large or too small.
Before You Buy Compare SEER2, EER2, and HSPF2
Heat pump efficiency ratings can get confusing fast. You’ll usually see SEER2, EER2, and HSPF2 on the equipment label, but they don’t measure the same thing.
Before comparing two heat pumps, you need to know what each rating actually tells you.
- SEER2: Measures seasonal cooling efficiency.
- EER2: Measures cooling efficiency under specific, demanding conditions.
- HSPF2: Measures seasonal heating efficiency.
SEER2: How Efficient Is It at Cooling?
SEER2 indicates how efficiently the heat pump cools your home over a typical cooling season.
A higher SEER2 generally means the system can provide the same amount of cooling while using less electricity. This matters more in hot climates where your heat pump runs for long periods during the summer. Especially the Trane XV18 Heat Pump System works the best in weather like this.
But don’t assume the highest SEER2 is automatically the best choice. A more efficient system usually costs more upfront, so the energy savings need to justify the additional investment.
EER2: How Does It Handle Peak Cooling?
EER2 looks at cooling efficiency under specific test conditions rather than over an entire season.
This gives you another way to compare how a heat pump performs when outdoor temperatures are high, and the system is working hard. If you live somewhere with long, hot summers, we pay closer attention to EER2 when comparing equipment.
Mainly, SEER2 gives you a seasonal picture, while EER2 gives you a snapshot of cooling performance under specific conditions.
HSPF2: How Efficient Is It at Heating?
HSPF2 measures how efficiently a heat pump provides heat throughout the heating season. This rating becomes more important if your heat pump will handle most or all of your home’s heating.
A higher HSPF2 can mean lower heating energy use, but the rating alone doesn’t tell the whole story.
If you live in a colder climate, we also look at how well the specific heat pump performs at low outdoor temperatures. A system needs to maintain enough heating capacity when temperatures drop, not just have a good number on the label.
So, Which Rating Should You Look At?
If you live in a hot climate, we put more weight on SEER2 and EER2 because cooling will usually be the bigger part of your annual HVAC workload.
If you live in a cold climate, HSPF2 and low-temperature heating performance become more important.
In a mixed climate, we consider both heating and cooling efficiency rather than chasing a single rating.
The goal isn’t to buy the heat pump with the biggest efficiency number. It’s about finding a system that strikes the right balance among efficiency, performance, upfront cost, and expected energy savings for your home.
Types of Heat Pumps
Not every heat pump works the same way. The main difference is where the system gets heat from and where it sends it.
Most homeowners will come across air-source, ductless mini-split, geothermal, and dual-fuel heat pumps. The right option depends on your home, existing HVAC system, ductwork, climate, and budget.
Air-Source Heat Pumps
An air-source heat pump is the most common type you’ll see in residential homes. It pulls heat from the outdoor air and transfers it into your home during winter. In summer, it reverses the process and works like an air conditioner.
This makes it a practical choice if you already have ductwork and want one system to handle heating and cooling.
Ductless Mini-Split Heat Pumps
A ductless mini-split doesn’t need traditional ductwork. Instead, an outdoor heat pump connects to one or more indoor air handlers.
We often consider this option for homes without existing ducts, additions, garages, converted spaces, or rooms that have always had heating and cooling problems.
You can also use multiple indoor units to control different areas of the home separately.
Geothermal Heat Pumps
A geothermal heat pump uses the relatively stable underground temperature rather than outdoor air to transfer heat.
That can make geothermal systems highly efficient, but installation is more involved. The system needs underground loops, which means excavation or drilling and a larger upfront investment.
For that reason, geothermal can make sense for certain properties, but it isn’t automatically the best choice for every homeowner.
Dual-Fuel Heat Pumps
A dual-fuel system combines a heat pump with a gas furnace.
The heat pump handles heating during milder weather. When outdoor temperatures fall far enough, the system can switch to the furnace for additional heat.
This setup can be useful in colder climates where a homeowner wants the efficiency of a heat pump but still wants a gas furnace available during very cold weather.
How Much Does a Heat Pump Cost?
whole-home heat pump typically costs $6,000 to $18,000 installed, with many homeowners paying around $12,860 for a standard ducted air-source system.
Your actual price can be higher or lower depending on the heat pump type, system size, efficiency, labor, existing ductwork, electrical setup, and other installation requirements. A home with properly sized ductwork usually costs less to convert than one that needs major infrastructure upgrades.
But rather than the price, other things also vary, for example:
| Heat Pump Type | Typical Installed Cost |
| Ductless Mini-Split | $3,500–$12,000 |
| Standard Air-Source (Ducted) | $6,000–$15,000 |
| Cold-Climate / Hybrid | $6,000–$18,000 |
| Geothermal (Ground-Source) | $15,000–$35,000+ |
These are general installed-cost ranges, not guaranteed quotes.
The final price depends on your home’s heating and cooling load, equipment efficiency, installation complexity, and any upgrades needed to make the new system work properly.
A geothermal system, for example, costs much more upfront because installation can involve ground loops, excavation, or drilling. A ductless mini-split may cost much less when you’re conditioning only a few rooms because it doesn’t require a traditional duct system.
The important thing is to compare the complete installation, not just the price of the heat pump itself.
Electrical Upgrades
This is one cost homeowners sometimes discover after the initial estimate.
A heat pump may require electrical work if your existing service or panel doesn’t have enough capacity for the new equipment. Depending on the home, that could mean adding a circuit, upgrading wiring, or replacing a smaller electrical panel.
For example, some 2026 cost guides estimate a 100-amp to 200-amp panel upgrade at roughly $1,500–$4,000, although local electrical rates and the scope of work can change that number.
That’s why we check the electrical setup before finalizing a heat pump recommendation.
Ductwork Modifications
If your existing ducts are in good condition and properly sized, you may be able to reuse them.
But if the ductwork is undersized, damaged, poorly sealed, or poorly laid out, your contractor may need to repair or modify it. New ductwork can add several thousand dollars to a project, with larger or two-story homes costing more.
This is another reason we don’t recommend choosing a heat pump based only on the equipment price. The system has to work with the rest of your home’s HVAC setup.
Thermostat and Controls
A basic thermostat may be enough for a straightforward heat pump, but some systems need compatible controls to take advantage of variable-speed operation, staging, or communicating technology.
If you’re upgrading to a more advanced heat pump, the thermostat and control system may be included in the equipment cost.
We view the thermostat as part of the complete system rather than as an optional accessory.
Permits and Other Installation Costs
Depending on your location, your installation may also include mechanical permits, electrical permits, inspection fees, equipment disposal, refrigerant line replacement, condensate work, pads, disconnects, or other materials.
Some contractors include these costs in the installation price, while others list them separately. Always ask what the quote includes before comparing it with another contractor’s estimate.
Heat Pump Operating Costs: Will It Actually Save You Money?
A heat pump can save you money on heating and cooling, but don’t expect your utility bill to drop by a fixed amount every month.
Your actual operating cost depends on how much electricity the system uses, your local utility rate, outdoor temperatures, system efficiency, home insulation, and how often the heat pump runs.
That’s why two homeowners with the same heat pump can end up with very different energy bills.
How Much Electricity Does a Heat Pump Use?
A heat pump uses electricity (for example, 1 kWh) to move heat rather than generate heat by burning fuel.
During summer, it moves heat out of your home. During winter, it reverses the process, moving available heat from outside into your home. It often delivers about 3–4 kWh of heat energy for every 1 kWh of electricity used (a COP of roughly 3–4 under typical conditions).
But the amount of electricity it uses depends on the system’s capacity (commonly 2–5 tons for residential homes) and efficiency ratings (such as SEER2 14–20 for cooling and HSPF2 8–10 for heating).
Also, how hard it needs to work, which can range from about 6 to 12 operating hours per day during peak seasons.
A properly sized, high-efficiency heat pump that runs steadily can use 20–40% less electricity than an oversized system that repeatedly starts and stops, sometimes cycling 10–15 times per hour instead of running in longer, more efficient cycles.
Some Best Heat Pumps for Cold Climates
Some of the best heat pumps are Mitsubishi, Daikin, Goodman, Carrier, Trane, Lennox, Bosch, and Fujitsu. Their cold-climate models are designed to maintain heating performance at lower outdoor temperatures, but the right choice still depends on your home and local climate.
Those work well because all of them have:
- Low-temperature heating capacity
- Performance below freezing
- HSPF2 efficiency
- Backup or supplemental heat
- Defrost performance
- Variable-speed operation
- Cold-climate ratings or certifications
- Your home’s insulation and heating load
Heat Pump Brands To Avoid
After 10+ years of HVAC installation at Green Leaf Air, we’ve learned that some brands are easier to install, service, and repair than others. We are more careful with brands that have limited local contractor support or harder-to-source parts.
Brands we’d research carefully include:
- Frigidaire: Parts and local service support can vary by area.
- Samsung: Advanced technology, but not every HVAC contractor services these systems.
- LG: Good technology, but local technician and parts support should be confirmed first.
- Midea: Strong product lineup, but contractor support can vary depending on the specific model.
That doesn’t mean these brands are automatically bad.
Before buying, we check the specific model, warranty, parts availability, and whether qualified technicians can service it locally.
For us, a good heat pump isn’t just one that works well today. It should also be easy to maintain and repair years down the road.
Frequently Asked Questions
What size heat pump do I need?
Heat pump size should be based on your home’s heating and cooling load, not square footage alone. We recommend a Manual J load calculation before choosing the equipment.
How long does a heat pump last?
A properly installed and maintained heat pump can typically last 10 to 15 years or longer, depending on usage, maintenance, climate, and equipment quality.
Is a heat pump cheaper to run than a gas furnace?
It can be, but not in every home. Your electricity and gas rates, outdoor temperature, equipment efficiency, and heating demand all affect operating costs.
Are expensive heat pumps worth it?
Not always. The most expensive system isn’t automatically the best choice. We consider efficiency, features, expected energy savings, installation costs, and your home’s needs before recommending an upgrade.
Do heat pumps work in cold weather?
Yes. Cold-climate heat pumps are designed to continue providing heat at low outdoor temperatures. In very cold areas, some homes may also need supplemental or backup heat.
How often does a heat pump need maintenance?
We recommend professional heat pump maintenance at least once a year, with additional attention to filters and airflow throughout the year.
Can I use my existing ductwork with a heat pump?
Often, yes. However, we check the ductwork for proper sizing, airflow, leaks, and condition before connecting a new heat pump. Poor ductwork can reduce system performance.
Does a heat pump replace both my AC and furnace?
Yes. A standard heat pump can provide both cooling in summer and heating in winter, allowing one system to handle both jobs.
Should I buy a high-SEER2 heat pump?
A higher SEER2 can reduce cooling energy use, but the additional upfront cost isn’t always worth it. We recommend choosing an efficiency level that makes sense for your climate, usage, and budget.
