Discover the comprehensive 48000 BTU (4.0 ton AC unit or AC unit 4 ton) Indoor Collection, designed for optimal performance in temperature regulation. This collection offers exceptional cooling solutions suitable for various residential and commercial environments, ideal for those in need of a complete 4 ton HVAC unit setup. Featuring advanced technology, the 48,000 BTU air conditioning units provide efficient and reliable climate control, enhancing indoor comfort and available in models that rival a 4 ton package unit heat pump in performance and efficiency.
Ideal for larger spaces, these air conditioners ensure consistent cooling with minimal noise disturbance. The collection includes versatile options like ductless mini split systems that deliver efficient energy usage while maintaining superior air quality. With easy installation and maintenance, our air conditioners offer both convenience and longevity—and are an excellent alternative to a 4 ton package unit for versatile installations. Experience unparalleled comfort and efficiency with the 48K BTU Indoor Air Conditioner Collection, meeting all your cooling needs with the performance of a robust 4 ton HVAC unit.
🤔 What is BTU and TON?
BTU (British Thermal Unit) is a measurement used to gauge how much heat an air conditioning or heating system can move in an hour. A higher BTU rating indicates a more powerful system capable of handling larger spaces. Essentially, knowing the BTU helps you choose the right-sized mini-split for your home, ensuring maximum comfort and energy efficiency.
TONN, often used in HVAC systems, refers to the cooling capacity equivalent to BTUs per hour, helping you understand the system's power in more familiar terms.
| BTU/hr |
Tonn |
| 6,000 |
0.5 |
| 12,000 |
1.0 |
| 18,000 |
1.5 |
| 24,000 |
2.0 |
| 30,000 |
2.5 |
| 36,000 |
3.0 |
| 42,000 |
3.5 |
| 48,000 |
4.0 |
| 54,000 |
4.5 |
| 60,000 |
5.0 |
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FAQ
What size space will a 48,000 BTU indoor mini split unit cool?
A 48k BTU indoor head is typically sized for 1,800–2,000 sq ft, depending on layout, insulation, and ceiling height. These 4-ton units are often used in wide-open basements, commercial storefronts, large living areas, or paired with multi-zone outdoor condensers. Need help confirming capacity? Use the “Size‑My‑Room” tool at MiniSplits4Less.com.
What indoor unit types are available in the 48k BTU category?
For 4-ton applications, you’ll find floor/ceiling-mount, ceiling cassette, ducted, and central air handler indoor units. Cooper & Hunter brand offer 48k heads with high-efficiency inverter motors (up to 18 SEER2) and low ambient heat down to –5°F. These units are engineered for comfort, airflow, and zoned climate control.
Can I use a 48k indoor head in a multi-zone setup?
Yes—most 48k indoor units are multi-zone compatible when paired with a 48,000 BTU quad-zone condenser. Depending on the model, they may be installed as a single head or one of up to four heads on a matched system. Always check the brand's compatibility chart or ask your installer to match refrigerant, communication lines, and voltage.
How much does a 4-ton indoor mini split unit cost?
In 2025, standalone 48k BTU indoor units range from $950 to $1,600, depending on configuration. Full kits (indoor + outdoor + line set) run $4,800–$6,500 installed. For best value, shop our stocked ducted and ceiling-mount 48k heads at MiniSplits4Less.com—most ship AHRI certified and rebate-ready.
