Understand the space
A 50 m² space can have a substantial load when heat enters through the roof or large windows. An online estimate is only a starting point. Consider shading, air distribution and solutions appropriate to the building.
Match the setup to your use
FREATH ONE has a provisional coverage target of up to 45 m². We do not present it as a guaranteed solution for 50 m². Assess separate rooms individually and seek a professional evaluation when planning a larger installation.
A transparent starting estimate
At 50 m² with a 2.5 m ceiling, our central assumption of 40 W/m³ gives 5.0 kW of cooling, about 17,060 BTU/h before the sunlight adjustment. This is an educational scenario, not a product recommendation. Adjust the assumptions in the calculator.
Check before buying
Window type and compatible kit; hose route; footprint and clearances; capacity and test method; noise at the setting you will use; electrical input. Even a well-sized unit depends on an appropriate installation.
Sources and methodology
These sources explain the technical context. They do not validate FREATH ONE or our calculator assumptions.
U.S. Department of Energy — Portable Air ConditionersOFEN / BFE — Étiquette-énergie / Energieetikette