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About Air Conditioners

A central air conditioner does much more than cool your home. A properly sized and matched system helps maintain consistent indoor temperatures, reduce excess humidity, improve overall comfort, and operate as efficiently as possible throughout the cooling season. Choosing the right air conditioner is one of the most important decisions you can make for your home's long-term comfort and energy efficiency.

Whether you're replacing an aging outdoor condenser or installing a new HVAC system, selecting the right equipment involves more than simply matching square footage. Factors such as cooling capacity, SEER2 efficiency ratings, climate, refrigerant type, and compatibility with your indoor evaporator coil or air handler all play an important role in system performance. Properly matched equipment can help reduce operating costs, improve reliability, and extend the life of your heating and cooling system.

At Same Day Supply, we offer residential central air conditioners from trusted HVAC manufacturers in a variety of capacities and efficiency levels. Whether you're a homeowner replacing an existing unit or an HVAC professional sourcing equipment for a customer, you'll find dependable products designed to deliver reliable cooling and long-term performance.

If you're replacing only the outdoor air conditioner, it's important to verify compatibility with your existing indoor equipment. Modern HVAC systems are engineered to operate as matched systems, and pairing compatible components helps ensure the system achieves its intended efficiency, capacity, and comfort performance. If you're unsure which equipment is compatible, reviewing manufacturer recommendations or consulting a qualified HVAC professional can help you make the right choice.

Before purchasing a new air conditioner, it's also worth considering your home's insulation, ductwork, local climate, and comfort goals. A properly selected system not only cools more effectively but can also help improve humidity control, reduce unnecessary energy consumption, and provide more consistent comfort throughout your home.

Whether you're upgrading an older system or selecting equipment for a new installation, Same Day Supply is committed to providing quality HVAC equipment, competitive pricing, and knowledgeable support. Browse our selection of central air conditioners below to find the right solution for your home, project, or customer.

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Quick Questions at a glance

Frequently Asked Questions About HVAC Equipment

What is HVAC equipment?

HVAC equipment includes the heating, ventilation, and air conditioning components that work together to keep your home comfortable year-round. Depending on your system, this may include air conditioners, heat pumps, gas furnaces, electric furnaces, air handlers, evaporator coils, packaged units, and complete split systems.

What is the difference between an air conditioner and a heat pump?

An air conditioner is designed to cool your home and works with a furnace or air handler to distribute conditioned air. A heat pump provides both heating and cooling by transferring heat between your home and the outdoors, making it an energy-efficient option in many climates.

What is a split system?

A split system separates the indoor and outdoor components of an HVAC system. The outdoor unit contains the compressor and condenser, while the indoor equipment typically includes an evaporator coil, furnace, or air handler. Split systems are the most common type of residential HVAC system.

What is a packaged HVAC unit?

A packaged unit combines all major heating and cooling components into a single outdoor cabinet. Packaged systems are commonly used when indoor installation space is limited or for certain residential and light commercial applications.

How do I choose the right HVAC system for my home?

The right system depends on your home's size, insulation, local climate, ductwork, energy efficiency goals, and budget. A qualified HVAC contractor can perform a proper load calculation to determine the correct equipment size and configuration for your home.

What size HVAC system do I need?

System size is based on more than square footage alone. Factors such as insulation, window placement, ceiling height, and regional climate all affect the heating and cooling requirements of a home. Proper sizing helps maximize comfort, efficiency, and equipment lifespan.

What do SEER2 and AFUE mean?

SEER2 (Seasonal Energy Efficiency Ratio 2) measures the cooling efficiency of air conditioners and heat pumps. Higher SEER2 ratings generally indicate greater energy efficiency. AFUE (Annual Fuel Utilization Efficiency) measures how efficiently a gas furnace converts fuel into usable heat. Higher AFUE ratings typically result in lower heating costs.

Should I replace my entire HVAC system or just one component?

In some situations, replacing a single component is appropriate. However, if your existing equipment is older or incompatible with newer efficiency standards, replacing the complete system may improve performance, reliability, and energy savings. Matching indoor and outdoor components is important for optimal operation.

How long does HVAC equipment typically last?

Most residential HVAC systems last between 10 and 20 years, depending on the equipment type, maintenance history, installation quality, and operating conditions. Routine maintenance and regular filter changes can help extend the life of your system.

Can I install HVAC equipment myself?

Most residential HVAC equipment should be installed by a licensed HVAC professional. Proper installation ensures safe operation, maximum efficiency, manufacturer warranty compliance, and adherence to local building codes.

How often should HVAC equipment be serviced?

Most manufacturers recommend professional maintenance at least once a year. Systems that provide both heating and cooling, such as heat pumps, often benefit from seasonal maintenance before both the cooling and heating seasons.

How often should I replace my air filter?

Most standard 1-inch filters should be checked monthly and replaced every 1 to 3 months, depending on household conditions. Homes with pets, allergies, or higher dust levels may require more frequent filter changes to maintain proper airflow and indoor air quality.

Does higher efficiency equipment save money?


Higher efficiency HVAC equipment typically consumes less energy, which can reduce monthly utility costs. While high-efficiency systems may have a higher upfront cost, many homeowners recover that investment over time through lower energy bills and improved comfort.

Do you sell complete HVAC systems?

Yes. Depending on the equipment category, complete systems may include matched indoor and outdoor components designed to work together. Individual replacement components, including furnaces, air conditioners, heat pumps, air handlers, and evaporator coils, are also available.