Guide collection
Air conditioner buying guides
Understand BTU capacity, room heat gains, running cost and exhaust requirements before choosing portable air conditioning.
What size air conditioner do I need? Three room examples
Assess room dimensions, glazing, sunlight, equipment and connected spaces, then check installation and capacity with three worked planning cases.
Read guide7,000 vs 9,000 vs 12,000BTU air conditioners: class comparison
Compare cooling classes using documented model specifications, electrical input, dimensions, handling, sound evidence and complete installation fit.
Read guideBedroom air conditioning: window fit, noise and night routines
Plan bedroom AC around a valid exhaust, cooling-mode sound, furniture and water access, with pre-cooling and overnight routine checks.
Read guideAir-conditioner running costs: calculate and measure your use
Calculate AC electricity from input watts, hours and your tariff, with cycling scenarios, time-of-use examples and a practical energy log.
Read guidePortable air conditioner vs fan: room cooling or personal airflow?
Compare AC and fans by the cooling outcome, room conditions, installation, sound and transparent electricity examples across three use cases.
Read guidePortable AC vs air cooler: humidity, ventilation and real use
Distinguish refrigeration and direct evaporation, compare humidity and installation needs, and plan water care with three illustrative room cases.
Read guidePortable-AC window kits: measure, match and check the exhaust
Choose a window-kit approach from window motion, opening measurements, adapters and a supported hose route, with sliding and casement examples.
Read guideReady to build your shortlist?
Answer the focused quiz and compare products matched to your needs.