Window AC — Cooling Only
Efficient room cooling with a window-mounted design. Compare BTU capacity, room coverage, voltage and smart-control features.
Shop Cooling-Only Window ACWindow & Portable Air Conditioners
Find the Right Window or Portable Air Conditioner
Compare window and portable air conditioners by room size, BTU capacity, voltage, installation type and heating capability. Review the exact model specifications before ordering to make sure the unit matches your space and electrical requirements.
Shop by Type
Window AC — Cooling + Heat
Cooling plus supplemental electric heat for spaces that need seasonal temperature control.
Shop Window AC with HeatPortable Air Conditioners
Flexible floor-standing cooling with window exhaust. Compare DOE/SACC capacity, room coverage, drainage and installation requirements.
Shop Portable ACThrough-the-Wall Air Conditioners
Built for wall-sleeve installations. Compare cooling capacity, room coverage, voltage, and heating capability.
Shop Through-the-Wall ACQuick Buying Guide
Choose by Room Size
Use manufacturer room-coverage guidance as a starting point. Ceiling height, insulation and direct sun can increase cooling demand.
Verify Electrical Service
Confirm 115V versus 230V, plug type, amperage and circuit requirements for the exact model.
Compare BTU Ratings Correctly
Portable units may show DOE/SACC and ASHRAE ratings. Compare models using the same standard.
Plan the Installation
Check window dimensions, exhaust-hose routing, drainage needs and required clearances before ordering.
Window vs. Portable Air Conditioners
| Feature | Window AC | Portable AC |
|---|---|---|
| Installation | Window-mounted | Floor unit with exhaust hose |
| Floor Space | None | Requires floor space |
| Mobility | Fixed | Can be moved |
| Venting | Through window chassis | Exhaust hose |
| Drainage | Model dependent | Model dependent |
| Best For | Dedicated room cooling | Flexible or temporary cooling |
Need Cooling + Heat?
Some window models include supplemental electric resistance heat. Verify heating capacity, voltage and electrical requirements on the exact product page before ordering.
Frequently Asked Questions
What size air conditioner do I need?
Use manufacturer coverage guidance and account for ceiling height, insulation, sun exposure and internal heat loads.
What is DOE/SACC versus ASHRAE BTU?
They are different portable-air-conditioner rating standards. Compare models using the same standard.
Is a window AC more efficient than a portable AC?
Efficiency varies by exact model and rating method; compare verified efficiency and capacity data for the same application.
Do portable air conditioners need a window?
Portable units require a route for the exhaust hose, commonly through a compatible window kit.
Do portable AC units need to be drained?
Drainage requirements are model and operating-condition dependent. Review the exact model instructions.
What is the difference between 115V and 230V?
They require different electrical service, receptacles and circuits. Match the exact model requirements.
Can a window AC provide heat?
Some models include supplemental electric resistance heat; this does not make them heat pumps.
How do I confirm current availability?
Use the current product-page status or contact HVACProSales for the latest supplier availability and lead time.
Need Help Choosing?
Send HVACProSales your room size, available electrical service and preferred installation type, and we can help narrow the available models.
Request Product Help