Room AC decision · about 2 minutes

Know what AC to buy.

Answer a few practical questions. ACtopus will give you a capacity range, equipment type, cost estimate, and the assumptions behind them.

START HERE

Find the right AC without the guesswork.

Get a clear room-size recommendation first, then use the planner if your home needs more than one unit.

Your
projects.

WHOLE-HOME START

List the rooms you want to cool.

Approximate dimensions are enough. You can plan the rooms first without drawing a floor plan.

0 rooms
Dimensions

Set an equipment limit

Indoor units condition rooms; outdoor systems may serve one or more matched indoor units. Tell ACtopus which one you want to limit.

This preference never combines room loads or selects a condenser automatically.

Start with one room

Add each space you may cool. You can change the order or remove it later.

PRELIMINARY OUTLINE

A room-by-room equipment starting point

This composes the same tested room-sizing model used by the one-room decision. Review flags remain visible instead of silently grouping rooms.

Indoor-unit outline
Connected capacity outline

See the rooms on a simple plan

ACtopus will arrange rectangular rooms from this list. You can edit and simulate them without losing the list or equipment outline.

This room list is a planning input, not a final zoning or installation design.

Professional mode

Detailed drawing, room, climate, and simulation controls are available here.

👆 Drag to move
✌️ Double tap for settings
🖐️ Drag empty space to pan
°C

Find the right AC for your room

Tell us about the room

Approximate answers are fine.

Electricity price $/kWh
01

Tell us about the room

Approximate answers are fine. You can revise them from the result.

02

How hard is the room to cool?

Choose “I’m not sure” whenever you do not know. We will show the assumption in your result.

03

What matters for the installation?

These answers help us recommend an AC type and estimate operating cost.

Electricity price $/kWh

Checking the fit…

We’re combining the room load, equipment type, and operating assumptions.

YOUR ROOM DECISION

Look for an 8,000 BTU/h inverter mini-split.

Standard capacity
Suitable range
Equipment type
Illustrative running cost
Input confidence

Take these questions to an installer

The recommendation is a starting specification. Confirm the site, electrical work, drainage, and warranty requirements before buying.

    Why this fits

      Edit the assumptions that move this decision Changes recompute here immediately and stay on this device.
      Review uncertain answers

      Sources and estimate scope

      YOUR PRELIMINARY RESULT

      A practical capacity for this room

      Existing AC assessment
      Review the technical load breakdown
      Recommended standard size
      Estimated suitable range
      Calculated room load

      Why this size?

      Assumptions and cautions

      You provided all core sizing inputs.

          This is preliminary room-level guidance, not a professional HVAC design.

          AC TYPE GUIDANCE

          Options that fit your installation

          Confirm with an installer

          Calculate
          your load.

          ROOM TYPE
          AREA
          CEILING HEIGHT
          SUN EXPOSURE
          INSULATION
          WINDOWS
          TOP FLOOR Room sits directly under the roof
          CALCULATED RESULTS
          REQUIRED CAPACITY
          HEAT LOAD BREAKDOWN
          ENERGY COST ESTIMATE
          DAILY USAGE
          ELECTRICITY RATE
          RECOMMENDED MODELS
          REFERENCE SHORTLIST

          Three specifications worth comparing

          Filtered to your decision. These are reference specifications, not retailer offers.

          YOUR REQUIRED SPECIFICATION

          Capacity
          Type
          Use
          Noise

          Source and revision status appear before commerce fields. Live price and availability are not connected.

          Compare specifications

          Type Capacity Efficiency Trade-offs Source

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          the library.

          No models match your search.

          Opened from your current decision. Your answers are still saved.

          Learn
          the basics.