MRCOOL® Hyper Heat 18K Single Zone DIY Mini Split Bundle (230V) — DIYHH-18-HP-WM-230D25-O Heating System Voltage: 120

Voltage: 120

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What size rooms are the 12K air handlers best for

✅ Low NOx emissions – cleaner

MRCOOL® Hyper Heat 18K Single Zone DIY Mini Split Bundle (230V) — DIYHH-18-HP-WM-230D25-O Heating System Voltage: 120Product Description Model: DIYHH 18 HP WM 230D25 O Introducing whats New 2025 This is the first official MRCOOL 5th Gen DIY Hyper Heat 18K Mini split system available direct to consumer, engineered specifically for installs down to 22F. The MRCOOL DIYHH 18 Hyper Heat 18K bundle combines the DIYHH 18 condenser and the DIY 18 HP WMAH 230D25 O wall mount air handler into a complete single zone system designed specifically for true homeowner installation.