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
Elapsed

Find the right AC for your room

QUICK ESTIMATE · 3 ANSWERS

Start with what matters most.

Room type, floor area, and sunlight are enough for a useful first estimate.

1Room type Choose the closest match
2Room area An approximate floor measurement is enough

3Afternoon sun Think about the hottest part of the day

Tell us about the room

Approximate answers are fine.

Room area

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.

Based on Living room · 24 m² · Some direct sun

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.

      The recommendation above updates immediately when you change an answer.

      Review uncertain answers

      Room and heat factors

      Comfort and installation

      Region and running cost

      Good to know

        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.

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

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            the basics.