A complete split HVAC system uses separate outdoor and indoor equipment that work together as a matched heating and cooling system. Common combinations include a heat pump with an air handler or an air conditioner with a gas furnace and cased evaporator coil.

The exact equipment depends on the configuration. A complete system may include an outdoor air conditioner or heat pump, indoor air handler or furnace, evaporator coil where applicable, refrigerant metering components, thermostat or controls, and installation accessories.

A split heat pump can provide both heating and cooling and is commonly paired with an air handler. An AC and gas furnace system uses the outdoor air conditioner for cooling and the gas furnace for heating.

Yes. Compatible heat-pump and gas-furnace equipment can be configured as a dual-fuel system, which uses the heat pump and gas furnace as alternate heat sources according to system controls and operating conditions.

Proper matching helps ensure intended capacity, efficiency, airflow, refrigerant performance and controls compatibility. The exact equipment combination should be verified using current manufacturer application and certification data.

System selection should consider a professional load calculation, building construction, insulation, windows, orientation, ductwork, airflow, occupancy and other project conditions rather than square footage alone.

Depending on the equipment type, common current efficiency metrics include SEER2 and EER2 for cooling, HSPF2 for heat pumps and AFUE for gas furnaces. Ratings apply to specific certified equipment combinations.

Variable-capacity equipment can modulate compressor output over a range to better respond to changing heating or cooling loads when used with compatible indoor equipment and controls.

Refrigerant depends on the exact equipment. Newer systems may use R-32 or R-454B while existing systems may use R-410A or other refrigerants. Components must be approved for the refrigerant specified by the manufacturer.

Compatibility must be verified for the exact application. Refrigerant, indoor coil, metering device, controls, safety requirements, equipment listing and manufacturer-approved combinations all need to be considered.

Not always. Existing ductwork should be evaluated for size, condition, leakage, restrictions and airflow. Repairs, sealing, transitions or replacement may be recommended when needed.

Yes. Depending on the application, options can include enhanced filtration, air cleaners, UV products, humidity control, ventilation and other indoor air quality accessories.

Controls vary by equipment and project. Some systems use conventional thermostats while advanced or communicating equipment may require specific compatible controls.

Yes. Advanced Service Company LLC installs complete central air-conditioning, heat-pump, furnace, dual-fuel and other qualifying split HVAC systems for residential and commercial customers throughout North Alabama.

Yes. FREE estimates are available for qualifying new HVAC systems and system change-outs.

Yes. Qualifying major component failures and full-system replacement recommendations may be eligible for a FREE second opinion.

Financing options may be available to approved customers on qualifying HVAC installation projects.

Project duration depends on equipment, access, ductwork, electrical work and other conditions. Advanced Service Company LLC notes that a typical HVAC change-out may take a full day, while new complete systems involving ductwork can take longer.

That depends on system age, condition, refrigerant, warranty, efficiency, repair cost and compatibility. Evaluating the complete indoor and outdoor system helps determine the most appropriate option.

Advanced Service Company LLC serves North Alabama, including Somerville, Decatur, Huntsville, Athens, Madison, Hartselle, Priceville and surrounding communities.