Overview

• Searches for mobile air conditioners in Germany jumped 230% in early July, with fan interest rising about 150% during consecutive tropical nights.
• Portable units incur electricity expenses that match their purchase price within three years, averaging €109–€172 of annual operating costs depending on room size.
• EU energy labels for mobile air conditioners, assigned under laboratory conditions, often understate real-world power consumption and efficiency differences.
• Split systems deliver faster and more efficient cooling but carry upfront costs of €700–€2,000 plus €300–€500 for professional installation and require landlord approval.
• Only air conditioners operating as heat pumps qualify for federal BEG subsidies, excluding most standard portable and split models from funding.