Window and Portable AC Playbook
Convert your BTU recommendation into the right Energy Star window AC or portable unit, and avoid short cycling, noise issues, and humidity spikes.
See buying checklistStep-by-step selection
- Start with your ACCalculator BTU range and round to the closest window or portable model.
- Match the room layout to airflow style: top vent, side vent, or dual-hose portable.
- Check Energy Star ratings, noise level in decibels, and dehumidification capacity, then confirm the load with the BTU and tonnage converter.
Quick reference chart
| BTU target | Ideal product type | Extra tips |
|---|---|---|
| 5,000 - 8,000 BTU | Window AC, single-hose portable | Look for inverter compressors to reduce cycling and validate capacity with the converter. |
| 8,000 - 12,000 BTU | Window AC with Smart Wi-Fi, dual-hose portable | Use a support bracket to reduce vibration and rerun the climate load adjuster if the space faces extreme sun. |
| 12,000 - 14,000 BTU | Through-the-wall or heavy-duty window AC | Confirm dedicated electrical circuits to handle load. |
Installation checklist
- Confirm window width and sash height against the manufacturer specs.
- Seal gaps with foam or insulation board to prevent humid air infiltration.
- Schedule filter cleaning reminders every 30 days for high-use rooms.