Ducted vs. Ductless Heat Pump Installation
Heat pumps are rapidly rising in popularity, especially here in Florida. One of the big challenges for homeowners is picking between ducted and ductless heat pumps. Both use the same technology, but choosing the wrong version for your house could be costly.
Ducted systems are usually ideal for retrofits into homes with an existing furnace or other heating system. Conversely, ductless models use a mini-split system that offers greater efficiency and easier zoning. Let’s take a closer look at picking between a ducted and a ductless heat pump installation.
What is a heat pump?
How Heat Pumps Provide Heating and Cooling
A heat pump uses the same refrigerant technology as an air conditioner does. The major difference is that a reversing valve allows a heat pump to pull air from the outdoors inside. Even when the weather is cold, there is enough latent heat outdoors to allow a heat pump to efficiently warm your house. These are called air sourced heat pumps.
Homeowners also may opt for ground source heat pumps. These use lines that go into the ground to take advantage of the latent temperature of the earth for both heating and cooling. The ground’s ambient temperature happens to be around the mark where heat pumps operate most efficiently. If you’re planning a heat pump upgrade, you may want to consider a ground source.
Notably, the reversible technology makes a typical heat pump a replacement for an air conditioner. This makes heat pumps particularly appealing in our part of the country because homeowners often focus their HVAC projects on cooling.
Why Heat Pumps Are Energy Efficient
Heat pumps don’t generate heat. Instead, they transfer it. For fossil-fuel systems, the efficiency ceiling is 100% and often trends to 80-90%. A heat pump can move 2-4 units of energy for every one it spends, especially in optimal conditions, as we have in Florida. The net effect is a 30-50% reduction in heating costs, even in our relatively warm climate, where the chance for savings is lower.
The absence of direct fossil fuel emissions also encourages many people to install heat pumps. This is great for reducing greenhouse gas emissions, but it also eliminates the carbon monoxide risks that come with furnaces. Combined with rooftop solar, some homeowners can even achieve net-zero emissions. Many utilities also offer incentives, and federal tax credits are available for specific kinds of models.
Ducted Heat Pump Installation
Ducted heat pumps use the existing ductwork in a house to distribute heat. A single thermostat controls the temperature throughout the whole house. Zoning hardware is available for targeted heating and cooling, too. Larger homes and those with open floor plans benefit the most from ducted heat pumps.
Installation Process for Ducted Heat Pumps
Standard installation involves an outdoor unit that sits on a concrete pad. An air handler in the basement or service closet connects to the external setup. This allows the design to retrofit well into houses with ductwork by replacing an existing furnace or AC.
Advantages of Ducted Heat Pump Installation
If you prefer to operate a single thermostat, then a ducted setup is the easiest way to achieve that. It is a familiar HVAC design, so more technicians are able to work on it. The duct system also hides the air flow by limiting outlets to vents.
Considerations Before Installing a Ducted Heat Pump
Leaky or poor ductwork can cause efficiency drops of 20-30%. Installation is also a consideration for houses without ducts.
Ductless Heat Pump Installation
How Ductless Heat Pump Systems Work
The mini-split design runs refrigerant lines to air handlers in each room. This is great for retrofitting AC to rooms without it. It also allows you to easily expand the system over time. The design is inherently multi-zonal, and there are no energy losses to ducts. Most air handlers go high on the wall to make the most of natural convection for circulation.
Installation Process for Ductless Heat Pumps
You have a similar setup with an exterior unit on a slab. The big difference is that refrigerant lines run directly to a series of air handlers. This requires more work because individual handlers need to mount to wall studs. The big advantage is that pre-insulated refrigerant lines carry heating and cooling to the air handlers, maximizing efficiency.
Advantages of Ductless Heat Pump Installation
The big advantage is the absence of ductwork. Zoned heating and cooling come standard, too. Likewise, there are no energy losses to air traveling through ducts. Many variable speed models also offer greater efficiency in mild weather while providing more aggressive cooling in extreme heat.
Considerations Before Installing a Ductless Heat Pump
Placement is essential for getting the most out of ductless heat pumps. You also need to think about how many zones are needed to achieve total heating and cooling coverage for your house.
Key Differences Between Ducted and Ductless Heat Pump Installation
Installation Complexity
Ducted heat pumps inherently require:
- Ductwork
- Air pressure testing
- Planning for multi-level homes
The upside is that they have simpler designs and are excellent for upgrading HVACs that already have ductwork.
Energy Efficiency
Ductless designs are almost always in on energy efficiency. The ability to insulate refrigerant lines for long runs means much lower losses.
Comfort and Temperature Control
Ducted solutions are convenient, especially for households with one comfort preference. Ductless systems offer room-by-room control and better responsiveness to thermostat changes.
Installation Cost
A single-zone ductless system is usually cheaper. Whole-house models with many zones may run in the tens of thousands of dollars. Ducted solutions are a middle option, hovering a bit below $10,000 on average. Federal tax credits are available for any models of both types and may defray up to 30% of the installation cost.
Choosing the Right Heat Pump Installation for Your Home
Homes That Benefit From Ducted Systems
Large houses with a furnace tend to be the obvious candidate. Open-floor-plan houses are also superb.
Homes That Benefit From Ductless Systems
Older places without ducts benefit the most.
Many people also use ductless models for:
- Separate units, such as duplex rentals
- Converted attics
- Detached workshops
- Pool houses
Professional Heat Pump Installation
Why Expert Installation Matters
Proper airflow is important for ducted models, and you should be licensed to work with refrigerants. Improper installation may also void the manufacturer’s warranty.
Long-Term Benefits of Professional Installation
A professional installation improves efficiency and maximizes the system’s lifespan. If you want high confidence that you’ll get the best heating and cooling performance, ask our pros to help.
To Sum It Up
Ducted heat pumps are great for large homes, open floor plans, and places with existing ductwork. They also have more uniform and simpler designs. Ductless works best for older properties lacking ducts or additions.
The professionals at Lakeland One Hour serve residents from Lakeland, FL, and the surrounding areas. Contact us today to discuss how to install or upgrade heat pumps in your home. We’re on time, or you don’t pay a dime.
FAQ’s – Ducted vs. Ductless Heat Pumps
What is the difference between ducted and ductless heat pumps?
Ducted systems use existing air ducts to distribute air, while ductless heat pumps deliver heating and cooling directly through indoor wall units.
Which is better: a ducted or ductless heat pump?
The best option depends on your home’s layout, existing ductwork, energy goals, and budget.
Are ductless heat pumps more efficient than ducted systems?
Ductless systems are often more efficient because they avoid energy losses that can occur in ductwork.
Can a ductless heat pump heat and cool an entire house?
Yes. Multiple indoor units can be installed throughout the home to provide whole-house comfort.
Do ducted heat pumps require existing ductwork?
Yes. Ducted systems rely on air ducts to distribute conditioned air throughout the home.
Is ductless heat pump installation easier than ducted installation?
Ductless systems are typically quicker to install because they do not require extensive ductwork.
Are ductless heat pumps good for older homes without ducts?
Yes. Ductless systems are often ideal for homes without ductwork.
How much does ducted vs ductless heat pump installation cost?
Costs vary depending on home size, equipment type, installation complexity, and energy efficiency ratings.
Do ductless heat pumps require more maintenance?
Both systems require routine maintenance, but ductless units may need regular cleaning of indoor air filters.
Can a ducted heat pump replace a traditional HVAC system?
Yes. Many homeowners install ducted heat pumps as replacements for traditional heating and cooling systems.
Which heat pump system is quieter?
Ductless heat pumps are often quieter because the compressor is located outside, and indoor units operate at low noise levels.
Who should install a ducted or ductless heat pump system?
A licensed HVAC professional can evaluate your home and recommend the best installation option.