Quick answers to questions about ordering, compatibility, and installation.
The MRCOOL DIY® 5th Gen 12K BTU Single Zone Mini Split Air Handler is designed for year-round heating and cooling, providing energy-efficient climate control for spaces 350 to 500 sq. ft.. This air handler pairs with the MRCOOL DIY® 5th Gen Condenser, delivering seamless operation, customizable comfort, and wireless control.
With a simple DIY installation, this indoor unit is easy to set up with the pre-charged QuickConnect® line set (sold separately). Enjoy hands-free temperature control via the SmartHVAC app, Amazon Alexa, or Google Assistant, or use the included remote.
📌 This listing includes only the indoor air handler. A compatible MRCOOL DIY® 5th Gen Condenser is required for full system operation.
✅ DIY Installation – No HVAC Technician Required
✅ Powerful Heating & Cooling
✅ Smart Climate Control for Maximum Comfort
✅ Dehumidification Mode for Improved Air Quality
✅ DIYPRO® Cable – Enhanced Durability
✅ Industry-Leading Warranty
✅ Certified for Quality & Safety
📌 This listing includes only the indoor air handler. A compatible MRCOOL DIY® 5th Gen Condenser is required for full system operation.
📌 Stock images may be used—actual product appearance may vary slightly.
📌 Professional Installation Not Required – Designed for DIY installation, but must be paired with a compatible MRCOOL outdoor condenser for full operation.
If you have any questions about the MRCOOL DIY® 5th Gen 12K BTU Mini Split Air Handler, please call us to speak with a customer service representative. They will be happy to assist you!
As always, purchase your MRCOOL parts and equipment from MRCOOL DIY Direct, the USA’s most trusted MRCOOL dealer.
Quick answers to questions about ordering, compatibility, and installation.
Yes. Freedom HVAC Supply sells HVAC equipment and parts to contractors, property owners, and qualified DIY installers. Some products may require professional installation based on local codes.
Product pages include specifications and compatibility details. If you’re unsure, our team can help verify fit before you order.
Absolutely. We work with licensed HVAC contractors, installers, and professionals nationwide.
Some HVAC equipment must be installed by a licensed professional to meet code requirements or warranty terms. Always review manufacturer guidelines.
Yes. Our support team can assist with product selection based on your application, space, and installation needs.
Manufacturer installation guides and documentation are included or available upon request for most products.
Most HVAC equipment includes a manufacturer warranty when installed according to guidelines. Warranty terms vary by brand and product.
Yes. We ship HVAC systems and parts throughout the continental United States using trusted freight and parcel carriers.
Larger HVAC equipment ships via freight and should be inspected upon delivery. Delivery details are provided during checkout.
Get help with ordering, compatibility, or installation questions.
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