MINI SPLIT SIZING CALCULATOR

Comfort starts with the right fit.

Answer a few quick questions about your room, regional climate and conditions. We’ll create a simplified planning-load and nominal-size estimate.

Let's get started How it works

About 1 minute
Instant recommendation
Personalized by climate

A better way to size

From your room to a
clear planning estimate.

We translate the conditions that affect comfort into a clear, practical recommendation.

Step 1
Describe your space
Room type, square footage and ceiling height.
Step 2
Set your climate
Your ZIP Code helps refine the estimate.
Step 3
Add room conditions
Insulation, windows, sunlight and air leakage.
Step 4
Add internal gains
Typical occupants and kitchen use complete the estimate.

Step 1 of 4

Tell us about your space.

Start with the room itself. You can fine-tune the conditions in the next steps.

What type of space are you sizing?

How large is the space?

sq. ft.

Ceiling height

Building exposure details Improves accuracy

These room-boundary inputs are used in the planning load estimate.

Exterior walls

What is above the room?

What is below the room?

This planning estimate uses selected building, glass, air-leakage, climate and internal-gain inputs. It is not an ACCA Manual J calculation or code-compliant equipment selection. ZIP temperatures are regional approximations, not ASHRAE weather-station design values. Before purchase—especially for primary heating—ask a contractor for a room-by-room Manual J calculation using ACCA-approved software and verification of manufacturer heating, sensible-cooling and latent capacity at the applicable design conditions. About ACCA Manual J.