MRCOOL DIY 5th Gen Mini Splits

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About this collection

Introducing the MRCOOL DIY 5th Gen Mini Split System: Impressive heating and cooling ranges, high efficiency levels, and an easier do-it-yourself installation. These units are perfect for heating/cooling 1 to 6 rooms.

The 5th Gen Do It Yourself ductless mini-split has completely updated specs and your electrician will be excited to work on this unit thanks to the invention of the new DIYPRO cable, which connects the air handler to the condenser. This cable provides longer protection!

Sizes:

12,000 BTU - 550 Square Feet

18,000 BTU - 800 Square Feet

24,000 BTU - 1,050 Square Feet

27,000 BTU - 1,250 Square Feet

36,000 BTU - 1,550 Square Feet

48,000 BTU - 2,100 Square Feet

55,000 BTU - 2,250 Square Feet

Before you buy

MRCOOL DIY questions, answered

What comes in a MRCOOL DIY 5th Gen kit?

Everything for the core install ships together: outdoor condenser, indoor air handler(s), pre-charged quick-connect line sets, remotes, and mounting hardware. Add the electrical kit (disconnect + whip), a pad, and line guard to finish the job clean.

Do I need an HVAC technician for any part of the install?

No refrigerant work is required — the line sets are pre-charged and the fittings are quick-connect. We recommend a licensed electrician for the dedicated circuit and disconnect, which is a standard, inexpensive visit.

Which size should I pick?

Plan on 20–30 BTU per square foot per room. Use our sizing calculator for a quick match, or the system builder for multi-room layouts — and our experts verify every order for free.

How does shipping work for these systems?

In-stock systems ship free with curbside freight delivery, typically arriving in about 4–10 days. Inspect each box at delivery and note any damage on the receipt before signing.