Air conditioner energy class: what the letters mean
How to read the European label, and why it has two separate ratings for cooling and heating
Articles by Irene
What is BTU on an air conditioner
The unit that measures cooling power, and how to use it to pick the right size
What is R32 gas in air conditioners
Today's most common refrigerant, and why it replaced R410A
What is SEER and SCOP on an air conditioner
The indexes that measure seasonal energy efficiency, in cooling and heating
What is an air conditioner without an outdoor unit
The monobloc that packs everything into one indoor unit, for those who can't install a traditional system
Difference between Inverter and on/off air conditioners
Why nearly every model sold today is Inverter, and what actually changes
Difference between single-split and dual/multi-split air conditioners
One outdoor unit for one room, or for two, three, four: when each setup makes sense
Best budget fixed air conditioners: entry-level monosplits brand by brand (August 2026)
Haier, Hisense, Midea and Samsung compared in the most accessible tier of traditional splits
Best fixed air conditioners: the ranking (August 2026)
From affordable Korean brands to Japanese flagships: the most recommended splits for every budget
Best portable and no-outdoor-unit air conditioners: the ranking (August 2026)
From wall-mounted monobloc units to mini personal coolers, every alternative to a classic split
Best air conditioners without an outdoor unit: the dedicated ranking (August 2026)
Six monobloc units for anyone who can't install a traditional split, from the cheapest to the quietest
Best fans: the ranking (August 2026)
Pedestal, table, tower, and ceiling: the most recommended models for every need