Indoor Units

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⚡ Mix & Match • Multi-Zone Expansion

Ductless Air Handlers & Indoor Units

A ductless air handler is the elegant, whisper-quiet unit installed inside your room. Whether you are building a custom multi-zone network from scratch, expanding an existing system, or seeking a replacement indoor mini split unit, we carry exactly what you need. From the classic wall mounted mini split indoor unit to sleek ceiling cassettes, find the perfect design to complement your interior decor.

  • 🧱 Wall Mounted
  • 💎 Ceiling Cassette
  • 🛋️ Floor Console
  • 🔄 Multi-Zone Ready

Styles of Indoor Air Handlers

Unit Style Description & Best Use
Wall Mounted The most popular indoor mini split unit. Mounted high on a wall, offering excellent airflow. Best for bedrooms and living rooms.
Ceiling Cassette Recessed into the ceiling, showing only a flush grille. Provides 360° airflow. Best for open concepts and commercial spaces.
Floor Console Installed low on the wall near the floor, similar to a radiator. Ideal for rooms with low ceilings, attics, or sunrooms.
Concealed Slim Duct Hidden completely above the ceiling, using short ducts to deliver air through standard vents. Best for strict aesthetic requirements.

Building a Multi-Zone System?

When selecting multi zone indoor units, there are two crucial rules you must follow to ensure your system works:

  • 1
    Brand Matching
    If you have a Cooper & Hunter outdoor unit, you absolutely must purchase a Cooper & Hunter mini split indoor unit. Communication boards are proprietary.
  • 2
    Capacity Limits
    Every multi-zone outdoor unit has a maximum "connected capacity". For example, you cannot connect four 12k BTU indoor units to a 24k BTU outdoor condenser.
  • 3
    Port Availability
    Ensure your outdoor condenser has physical ports available. A 3-zone condenser cannot physically accept a 4th ductless air handler.

🎯 Need a complete system instead?

If you don't already have an outdoor condenser, save money by buying a complete kit. Browse our Multi-Zone Systems to find perfectly matched bundles at discounted prices.

Shop Complete Systems

FAQ: Mini Split Air Handlers

🌬️ What is a mini split indoor unit?
A mini split indoor unit, also known as a ductless air handler, is the component of a ductless HVAC system installed inside the room. It contains the evaporator coil and a quiet fan that distributes heated or cooled air directly into your living space.
⚠️ Can I mix and match different brands of indoor and outdoor units?
No. A ductless indoor unit must be paired with an outdoor condenser of the exact same brand, and often the same specific product line, to communicate electronically and function correctly.
Can I add a new indoor mini split unit to an existing system?
Yes, if your existing outdoor multi-zone condenser has an unused port and enough remaining BTU capacity, you can purchase an additional multi zone indoor unit to expand your system.
🖼️ What are the different styles of ductless air handlers?
The most common style is the wall mounted mini split indoor unit. Other popular architectural styles include ceiling cassettes (flush mount), floor consoles (mounted low on the wall), and concealed slim duct units.