With the UK logging repeat heatwaves since May and France sitting under a heat dome for weeks at a time, waiting until the next one hits to think about cooling means shopping in a panic with everything on backorder. Here's what actually earns a spot in a heatwave-ready kit, category by category.
Block the heat first
Before anything else, stop heat entering the room: a Reflective Thermal Window Shade or Blackout Window Insulation Panel on sun-facing windows. Full detail in our window insulation guide.
Room-level cooling
A 3-in-1 Portable Evaporative Swamp Cooler for a bedroom or living room, or the Leafless Water-Cooled Air Chiller if you want something closer to AC-level coverage.
Desk and personal cooling
A compact Desktop Mist Air Cooler for wherever you actually sit, plus a neck fan or handheld fan for outside the house.
Sleep
A cooling mattress topper and matching pillowcases — heat ruins sleep faster than almost anything else on this list. Full guide: stop night sweats.
Humidity control
If you're running an evaporative cooler for hours a day, a dehumidifier keeps the room from tipping into that heavy, damp feeling. Details in our dehumidifier guide.
Frequently Asked Questions
What's the single most important thing to buy before a heatwave?
Window insulation, if you had to pick one — stopping heat from entering the room in the first place reduces how much work every other product has to do afterward.
Do I need both a room cooler and personal cooling gadgets?
Not necessarily, but they solve different problems: a room cooler helps whoever's in the space, while personal devices like neck fans and handheld fans travel with you outside the house.
How far in advance should I buy heatwave gear?
As early as possible — cooling products tend to sell out or face shipping delays once a heatwave is already underway and demand spikes.