Quick answers to questions about ordering, compatibility, and installation.
New for 2025: The MRCOOL® DIY Hybrid™ Ducted Air Handler brings true central HVAC comfort to DIYers. Pair it with a compatible MRCOOL® DIY condenser for a central, ducted heat pump experience—and expand like a multi-zone mini split by adding wall or ceiling-mounted MRCOOL® air handlers to one outdoor condenser. Ships nationwide from MRCOOLDIYDirect.com, the USA’s most trusted MRCOOL dealer.
Use this ducted air handler in place of a wall or ceiling cassette to create a central ducted zone. Then, add additional MRCOOL® mini split air handlers (wall or ceiling) to the same outdoor condenser. For sizing, add up the BTUs of each indoor unit (this ducted air handler plus any additional air handlers) to choose the right condenser capacity—just like a multi-zone mini split.
| Model | Capacity (BTU) | Typical Coverage | Use Case |
|---|---|---|---|
| DIY Hybrid™ Ducted 24k | 24,000 BTU | Up to ~1,000 sq. ft. | Primary zone or medium home area via central ducts |
| DIY Hybrid™ Ducted 36k | 36,000 BTU | Up to ~1,500 sq. ft. | Larger primary zone or small home via central ducts |
Note: Coverage estimates vary with insulation, climate, ceiling height, window area, and occupancy. When building a multi-zone configuration, always sum the total indoor capacity (ducted + any additional mini split handlers) to select your outdoor condenser.
Always follow the official MRCOOL® installation manual and local codes. Professional assistance may be required for electrical, duct, or code-specific tasks.
Fine-tune comfort from the touchscreen thermostat or the MRCOOL® app. Set schedules, monitor modes, and manage temperatures from virtually anywhere to keep energy use in check without sacrificing comfort.
This air handler is the ideal bridge between a central ducted heat pump and the flexibility of multi-zone mini splits. Replace an aging furnace/air handler with a modern, ducted MRCOOL® DIY solution, then add wall or ceiling mini split air handlers for rooms that need targeted comfort—all served by a single outdoor condenser. It’s an energy-smart, scalable approach to whole-home heating and cooling.
Yes. The DIY Hybrid™ Ducted Air Handler is designed to communicate via control wire and pair with compatible MRCOOL® DIY condensers for simplified, do-it-yourself installation.
Treat the system like a multi-zone mini split: add up the BTUs of the ducted air handler and any additional wall/ceiling indoor units. Choose an outdoor condenser that meets or slightly exceeds that total capacity.
24k is commonly used for spaces up to ~1,000 sq. ft., while 36k is used up to ~1,500 sq. ft. Actual coverage depends on insulation, climate, windows, ceiling height, and layout.
Yes. You can add an optional heat kit (heat strips) for auxiliary heating during colder weather.
This air handler uses R-454B, a modern, environmentally conscious refrigerant that delivers high performance with a reduced environmental impact versus older refrigerants.
Ready to build your MRCOOL® DIY Hybrid™ ducted system? Order today for fast nationwide shipping from MRCOOLDIYDirect.com — the USA’s most trusted MRCOOL® dealer.
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Quick answers to questions about ordering, compatibility, and installation.
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