Whynter ARC-14S: Why 14,000 BTU and 9,500 BTU Are Both Correct

Short answer: The Whynter ARC-14S is rated at 14,000 BTU under ASHRAE-128 and 9,500 BTU under the DOE/SACC method. The two numbers come from different testing approaches.

For portable air conditioners, SACC is the more useful number when comparing realistic room-cooling capacity because it accounts for losses that the older laboratory rating does not capture as well.

Why Portable ACs Lost BTUs on Paper

The machine did not suddenly become weaker. The test method changed. Portable ACs exhaust hot air through a hose, and that system creates real-world penalties that the newer DOE method tries to represent more honestly.

Which Number Should You Use for Sizing?

Use the SACC/DOE figure when comparing modern portable ACs, and then adjust for room conditions such as ceiling height, sun exposure, insulation, heat-producing equipment and occupancy.

Run your room through the SizeDial AC / BTU Size Calculator →

More ARC-14S Questions

• ARC-14S main product hub
• What size room can it cool?
• Do you have to drain it?

Source

Whynter ARC-14S official specifications