The heat pump's capacity
Heating and cooling capacity for your property, not just one season.
One System for Heating and Cooling, Sized for Both
Replacing your heating system in Northeast Florida is often a year-round comfort decision. Many Jacksonville homes use heat pumps that provide both heating and air conditioning, making proper equipment selection especially important.
Mighty Air provides professional heating and heat pump installation and replacement for residential and qualifying light commercial properties throughout Jacksonville and surrounding Northeast Florida communities. Our team evaluates your existing equipment, heating and cooling requirements, airflow, ductwork, and comfort needs before recommending a replacement system.
Call Mighty Air, Inc. at (904) 292-0636 to request a heating installation estimate in Jacksonville.A heating problem doesn't automatically mean you need new equipment. Replacement may be worth considering when any of these apply.
If you're not sure, we'll evaluate the system and compare repair with replacement. Learn more about Heating Repair.

Inverter-driven heat pumps adjust output to demand: more consistent temperatures, quieter operation, better humidity management. We'll help you compare them with standard systems for your property.
A heat pump is one part of a system. The outdoor unit, the indoor air handler, the electric heat kit, and the thermostat all need to be matched to work together correctly. Most heat pumps in Northeast Florida include electric auxiliary heat strips inside the air handler. They supplement the heat pump on colder days and during defrost cycles. The heat kit is sized to the home and the electrical service, so it's part of the equipment selection, not an afterthought. When we recommend a system, we look at:
Heating and cooling capacity for your property, not just one season.
Matched to the outdoor unit so the pair performs as designed.
Sized to your home and your electrical service.
The heat pump and the auxiliary heat, correctly.
Sometimes only one piece needs replacing. But a heat pump and air handler work as a matched pair, so putting a new outdoor unit on an old, mismatched air handler can limit performance and affect warranty coverage.
We'll look at the age and condition of every component and tell you whether replacing one part or the full system makes more sense.

Some Jacksonville properties still use gas furnaces. Mighty Air offers gas furnace replacement for the homes and businesses that use them.
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Mighty Air installs heating equipment for qualifying residential and light commercial properties, including split systems, heat pumps, packaged systems, and rooftop equipment. Replacing your cooling equipment too? See AC Installation & Replacement.
Commercial HVAC ServicesA professional HVAC installation involves more than replacing old equipment. Procedures vary based on the equipment and project. Existing ductwork matters too, and leaks or restrictions can keep new equipment from performing as it should. Learn more about our Ductwork Services.
And review your heating and cooling requirements.
Appropriate capacity for the property, both seasons.
So the new equipment can actually deliver.
Outdoor unit, air handler, heat kit and thermostat, matched.
Including the auxiliary heat kit.
Refrigerant lines, drainage, electrical and controls.
Both modes, before we call it done.
Condensate drainage and overall system performance.
Operation and maintenance requirements, explained.
Mighty Air offers financing options for qualifying customers considering heating system replacement or a new heat pump installation. Our team can explain available programs and applicable payment options to help you evaluate your investment. All financing is subject to approval and program terms.
Subject to credit approval.
A new HVAC system is an important investment. Mighty Air offers an optional Mighty Air Protection Plan that provides qualifying labor coverage and additional service benefits under the plan's terms. Ask us for the full details, including coverage, pricing, eligibility, effective dates, and limitations.
New equipment may include an applicable manufacturer warranty. Coverage varies by manufacturer, model, registration requirements, and installation details, and many manufacturers require the equipment to be registered within a set time after installation. A manufacturer warranty typically covers parts. Labor is separate, which is what the optional Protection Plan is designed to address. We'll explain which coverage applies to the equipment you choose.

Regular HVAC Maintenance helps protect your new equipment and keep the manufacturer warranty in good standing. Our Standard and Elite plans put two seasonal visits a year on the calendar and discount qualifying repairs.
Our name is on every van and every invoice. That's why we match the equipment, size it to the home it's going into, and test heating and cooling before we leave.
See real heat pump and heating installations our team has completed in Jacksonville, Orange Park, St. Johns, and nearby communities.




Quick answers to the questions Jacksonville homeowners ask us most about replacing a heating system.
Have a question that isn't here? Call (904) 292-0636 and tell us what's happening.
Request an EstimateFor most Jacksonville homes, a heat pump. It provides both heating and cooling from one system, which fits Northeast Florida's long cooling season and short winters.
Sometimes. It depends on the age and compatibility of the air handler. A mismatched pair can limit performance and warranty coverage, so we'll check before recommending it.
Not necessarily. Your home may have changed since the original system was installed. We size new equipment to the home's current heating and cooling needs.
A manufacturer warranty generally covers parts, subject to the manufacturer's terms and registration. The optional Mighty Air Protection Plan provides qualifying labor coverage under its own terms.
It depends on the equipment, the property, and the scope of the project. We'll give you a timeline after evaluating your installation.
Whether your heat pump is aging, a major component has failed, or you want to compare your options before something breaks, Mighty Air will evaluate your system and recommend equipment matched to your home.
Mighty Air is a family-owned HVAC company serving Jacksonville and Northeast Florida since 2016. Always there when you need us.
Mighty Air HVACJacksonville, FloridaCall Mighty Air, Inc. at (904) 292-0636 to request a heating installation estimate in Jacksonville, FL, and surrounding areas.
Tell us about your property and your current system and we'll get back to you fast.
Need help right now? Call (904) 292-0636