MRCOOL DIY System Designer
Design your MRCOOL DIY mini split system
Build a matched heating and cooling package, room by room, from indoor units to installation components.
DIY Friendly
Factory Matched
Expert Support
Start with your layout
How many rooms or zones do you have?
We’ll match the outdoor condenser to the total BTU requirement.
Room designer
Configure each room
Choose approximate room size, indoor unit style, and the distance to the condenser.
Factory-matched package
Review your system components
Check the matched indoor units, condenser, and line sets before adding optional accessories.
Recommended upgrades
Complete your installation package
Add optional accessories, then send the complete package to checkout.