MRCOOL System Builder Pro
Configure any MRCOOL system in minutes — from DIY mini-splits to commercial central ducted. Get instant product recommendations with real pricing.
✓ All MRCOOL Series
✓ BTU Calculator
✓ Climate Adjustment
✓ Instant Pricing
✓ Direct Product Links
? What type of system are you building?
DIY Single-Zone
One room or open area. Pre-charged, no vacuum needed. 9K–36K BTU.
DIY Multi-Zone
2–5 rooms on one outdoor unit. Mix wall mounts and cassettes.
DIY Hybrid™
Central ducted + mini-split zones on one condenser. Best of both worlds.
Central Ducted
VersaPro, Signature, or PRODIRECT split systems for existing ductwork.
Olympus Mini-Split
Pro-grade wall mount, cassette, or ducted. Single or multi-zone.
DIY OuttaSight™
Concealed ceiling cassette. Invisible installation, DIY simplicity.
? Room Dimensions
Climate Zone
Moderate
Zones 4–5
Hot & Humid
Zones 1–3
Cold Climate
Zones 6–7
? Choose Your Series
⚙️ Additional Options
? Need Expert Help?
Our HVAC specialists can verify your system selection, check compatibility, and answer installation questions.