Package Unit Installation & Repair in Knoxville, TN
All-in-one heating and cooling in a single rooftop or ground-level unit — package systems are the right solution for thousands of East Tennessee homes. Aire Care Mechanical installs, services, and repairs both gas package units and heat pump package units throughout the Knoxville area.
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Understanding Package Units
What Is a Package Unit — and Is One Right for Your Home?
A package unit (also called a packaged HVAC system) contains all components — compressor, condenser coil, evaporator coil, and in gas units, the heat exchanger and burners — in a single cabinet installed outside the home, typically on the roof or at ground level on a concrete pad. Unlike a split system, which pairs an indoor air handler with an outdoor condenser, a package unit keeps everything in one place. This also means if you later need AC service or furnace service, a single technician can address your entire system at one location.
Package units are particularly well-suited to certain types of East Tennessee homes:
- Homes built on a slab foundation with no basement or crawlspace for a split system’s air handler
- Mobile and manufactured homes designed around rooftop or downflow package systems
- Older ranch-style and mid-century homes where ductwork runs through the attic or walls
- Light commercial spaces such as small offices, retail, and workshops
- Homes where the interior closet or utility room lacks adequate space for an air handler
If you’re not sure whether a package unit or a split system is right for your property, our technicians will assess your home’s layout, ductwork, and energy profile before making any recommendation. We also handle furnace repair and AC repair on split systems if that’s what you have.
Two Types of Package Units — Which Is Right for You?
The choice between a gas package unit and a heat pump package unit depends on your home’s infrastructure, energy costs, and comfort priorities. Here’s how they compare.
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Gas Package Units
A gas package unit uses natural gas for heating and electricity for cooling — combining a gas furnace section with an air conditioning system in a single outdoor cabinet. They’re popular in East Tennessee slab-foundation homes with existing gas service. Think of it as your furnace repair and AC service solution rolled into one unit.
Best for:
- Homes with natural gas service already in place
- Climates with cold winters where gas heat efficiency matters
- Homeowners wanting the lowest heating costs on cold days
- Slab homes replacing an existing gas package system
Key advantages:
- Gas heat is typically less expensive per BTU than electric resistance heat
- Delivers hotter, more immediate warmth than heat pumps in extreme cold
- Simple all-in-one installation with minimal indoor equipment
- Amana and Goodman equipment carry strong warranty protection on gas package systems
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Heat Pump Package Units
A heat pump package unit provides both heating and cooling using electricity only — no gas line required. By moving heat rather than generating it, heat pumps are remarkably efficient in moderate climates like East Tennessee’s, where winter temperatures rarely stay below freezing for extended periods. No separate furnace repair needed.
Best for:
- Homes without natural gas service (all-electric households)
- Mobile and manufactured homes with all-electric setups
- Homeowners seeking a single system for year-round comfort
- Properties where avoiding gas infrastructure is a priority
Key advantages:
- Highly efficient in East Tennessee’s mild-to-moderate winter climate
- Single system for both heating and cooling — one maintenance programs visit covers both
- No gas combustion — reduced CO risk and no flame-related concerns
- Modern units perform well down to lower temperatures than older models
Package Unit Installation, Replacement & Repair
Whether you’re replacing a failed package unit, upgrading an aging system, or installing a package unit in a new construction or renovation project, Aire Care Mechanical handles the full job — from the load calculation to the final test and walk-through with the homeowner.
Installation: Every new package unit installation begins with a Manual J load calculation to ensure the system is properly sized for your home. An undersized unit will run constantly and never keep up. An oversized unit will short-cycle, waste energy, and fail prematurely. Getting sizing right is the single most important factor — and a step many contractors skip. We never do. See our HVAC equipment page for details on the Amana and Goodman package systems we install.
Repair: We diagnose and repair all major package unit brands. Common issues we handle include compressor failures, refrigerant leaks — similar to those we address on standard AC repair calls — failed capacitors, dirty or blocked coils, ignition problems (gas units), heat pump reversing valve failures, and control board issues.
Brands we service: Goodman, Amana, Carrier, Lennox, Trane, Rheem, York, Ruud, American Standard, and most other residential and light-commercial brands.
Why Choose Aire Care for Your Package Unit?
Package Unit FAQs — East Tennessee Homeowners
Common questions about package HVAC systems in Knox County and surrounding areas.
How do I know if I have a package unit?
If your home’s entire HVAC system is housed in a single large cabinet sitting outside — either on the roof or on a concrete pad beside the house — you have a package unit. There will be no indoor air handler or furnace. Ductwork connects directly from the outdoor unit through the wall or roof into your home.
How long do package units last in East Tennessee?
Well-maintained package units typically last 12–18 years in our climate. East Tennessee’s high summer humidity accelerates coil corrosion if units aren’t cleaned regularly, so our annual maintenance programs are particularly valuable for package system longevity.
Is a heat pump package unit efficient in Tennessee winters?
Yes — East Tennessee’s climate is well-suited to heat pump efficiency. Heat pumps move heat from outdoor air into your home efficiently down to around 25°F. Even in our coldest snaps, modern heat pump package unit systems perform well. Below 25°F, they use electric resistance backup heat — but Knoxville rarely sustains those temperatures for long.
What size package unit does my home need?
Package unit sizing depends on your home’s square footage, insulation, ceiling height, window area, and orientation. A proper Manual J load calculation is the only accurate way to determine the right tonnage. We calculate this precisely on every installation.
Can I get a gas package unit if I already have a furnace?
Possibly — it depends on your home’s layout and whether a package unit is a practical fit. If you’re currently facing a major furnace repair bill on an aging system, it may be worth comparing the cost of a package unit installation as an alternative. We’ll assess both options and give you honest numbers.
Service Areas
We Serve All of East Tennessee
Aire Care Mechanical provides expert HVAC service throughout Knox County and the surrounding region. Click your city to learn more about local AC repair, furnace repair, and package units service near you.
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