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MRCOOL wall-mounted indoor unit in a furnished bedroom, with two people in the room

Sizing

Find your system

Answer two questions and we'll show you the systems that fit. Confirm the final size with a Manual J load calculation before you buy.

Step 1 of 4

Tell us the project

  1. Project
  2. Rooms
  3. Line sets
  4. Your system

Preliminary guidance: Room area alone does not account for climate, insulation, windows, occupancy, or other loads. Confirm final sizing with a Manual J load calculation.

Are you conditioning one room or several?

Single-zone systems are sized by capacity. Multi-zone systems continue to the exact bundle for your room count.

How sizing works

  1. Tell us the project

    One room or several, and how many rooms you want to condition.

  2. Pick each room's size

    Match every room to one of the published nominal capacities.

  3. Choose line-set lengths and voltage

    Pick the listed line-set lengths and confirm the supply voltage.

  4. See your exact system

    We show the one factory-approved bundle that matches. No nearest match is substituted.

You end with one exact system, its price, and its documents. Sizing here is a starting point; confirm with a Manual J load calculation.