One factory in Pune. Sixteen markets.

45–50 °C summer highs, low inland humidity, high coastal humidity

Inland UAE — Al Ain, Dubai Industrial City, Abu Dhabi ICAD — has exactly the dry-heat profile evaporative cooling was built for. Coastal Dubai and Sharjah are more humid in August and September, where HVLS air movement carries more of the load.

45–52 °C summer highs, very low humidity inland (Riyadh 10–20% RH)

Riyadh, Qassim and the central plateau are among the best evaporative cooling conditions on earth. At 48 °C and 12% RH the wet-bulb depression is very large, so evaporative cooling performs better here than almost anywhere else we supply.

42–48 °C summer highs, high coastal humidity June–September

Qatar is coastal and humid through peak summer, so HVLS air movement usually carries more of the comfort load than evaporative cooling. Evaporative units perform strongly for the eight cooler, drier months and as fresh-air ventilation year-round.

40–48 °C interior summer highs, dry inland, humid on the Batinah coast

Oman’s interior — Nizwa, Ibri, Buraimi and the Duqm corridor — is dry enough for full evaporative performance. The Batinah coastal strip is more humid and suits a layered HVLS-plus-cooling approach.

48–52 °C summer highs, very low humidity — among the hottest dry climates on earth

Kuwait records some of the highest dry-bulb temperatures on the planet with low humidity. Wet-bulb depression is enormous, so evaporative cooling delivers its maximum theoretical performance here.

Hot and humid year-round, 30–35 °C, 70–85% relative humidity

Indonesia is humid year-round, so evaporative cooling delivers only a small temperature drop. We recommend HVLS fans and high-volume exhaust ventilation instead — both work independently of humidity.

Hot and humid, 32–38 °C summer, high humidity year-round in the south

Vietnam’s humidity limits evaporative cooling. HVLS air movement and high-rate exhaust ventilation are the effective technologies here, particularly on large garment and electronics floors.

Hot and humid, 32–38 °C summer, monsoon humidity above 80%

High humidity limits evaporative cooling for most of the year. HVLS air movement and exhaust ventilation are the appropriate technologies, and both are heavily used in the RMG sector.

Tropical, 28–34 °C year-round, high humidity, drier in the north-central dry zone

Coastal and central Sri Lanka are humid and suit HVLS plus exhaust ventilation. The north-central dry zone around Anuradhapura has better evaporative potential.

Uniform 31–33 °C daytime highs with 85–90% relative humidity in every month

Evaporative cooling is useless in Singapore and we will not quote it. At 88% relative humidity the wet-bulb depression is close to zero, so a cooler adds water vapour and no cooling. What works here is bulk air movement and heat extraction: HVLS fans over the floor, hammer exhaust fans on the wall, inline-jet duct fans in the risers.

Equatorial, 32–35 °C by day, 75–90% relative humidity, heavy afternoon rainfall

The honest position is that Malaysian air is too wet for evaporative cooling to earn its place, so HVLS fans lead every specification we write here. Palm oil mills, rubber and glove plants add a second problem — process steam trapped under a high roof — which hammer exhaust fans are built to clear.

Hot and humid at 30–36 °C with a June–November typhoon and monsoon season

Philippine humidity rules evaporative cooling out, but the ventilation case is unusually strong: poultry tunnel houses, electronics halls and food plants all need measured air exchange. Exposed and semi-open sheds also face driving rain and salt air during typhoon season, so we specify galvanized casings and IP55 sealed motors rather than standard painted steel.

Warm year-round, 25–35 °C, moderate humidity, strong solar load at altitude

Kenya’s ventilation need is driven less by extreme heat and more by solar gain in polyhouses, ammonia and moisture in poultry housing, and stagnant air in warehousing. Exhaust ventilation is the primary requirement, with evaporative cooling valuable in the drier Rift Valley and northern regions.

Hot year-round, 30–40 °C, humid in the south, dry harmattan in the north

Northern Nigeria — Kano, Kaduna, Sokoto — is dry enough for full evaporative performance, especially during harmattan. The humid south around Lagos and Ibadan is better served by high-volume exhaust ventilation and HVLS air movement.

38–45 °C summer highs, very low humidity inland, Mediterranean humidity on the coast

Inland Egypt — Cairo, Upper Egypt, the New Valley and the desert industrial cities — has low summer humidity and excellent evaporative potential. Alexandria and the Delta are more humid.

28–38 °C summer highs, dry Highveld, humid KZN coast

The Gauteng Highveld and Northern Cape are dry and suit evaporative cooling well. Durban and the KZN coast are humid, where HVLS air movement is the more reliable answer.

Inland summers of 40–45 °C at 15–25% humidity, milder humid Atlantic coast

Morocco splits cleanly in two. Marrakech, Fès, Meknès and Beni Mellal deliver dry 40 °C-plus summers where a ductable evaporative cooler produces a large, genuine temperature drop. Casablanca, Rabat and Tangier sit under Atlantic moderation with higher humidity, so HVLS air movement does more of the work there.

Humid coast at 30–34 °C, drier inland plateau at 1,100–1,500 m altitude

The right product depends on which side of the escarpment the site sits. Dar es Salaam, Tanga and Zanzibar are humid enough that evaporative cooling underperforms, so exhaust ventilation and HVLS fans carry the load. Dodoma, Arusha, Mwanza and the central plateau are dry and high, where ductable coolers work properly.

Equatorial but at 1,200 m altitude — a steady 28–32 °C with moderate humidity

We will not pretend Uganda is an extreme-heat market, because it is not. Kampala sits high enough that daytime temperatures stay in the high twenties. What the buildings actually need is air exchange — ammonia and moisture out of poultry houses, humidity out of grain stores, heat out of greenhouse roofs — which makes this an exhaust and HVLS market rather than a cooling one.

Temperate, 20–32 °C summer peaks, cool winters with significant heating demand

The UK case for HVLS fans is driven as much by winter destratification as by summer comfort. In a 9 m warehouse, pushing trapped ceiling heat back down commonly recovers 10–20% of heating energy.

35–42 °C dry inland summers, humid 30–35 °C on the Marmara and Aegean coasts

Turkey splits cleanly in two for our purposes. Inland Anatolia — Konya, Gaziantep, Şanlıurfa, Kayseri — is hot and genuinely dry, so ductable evaporative coolers deliver their full temperature drop there. Istanbul, Kocaeli and Izmir sit in coastal humidity where HVLS fans and exhaust ventilation do the real work.

Cold winters well below 0 °C, short summers now reaching 35 °C

Poland is not a cooling market and we will not pretend otherwise — evaporative coolers have no place in a country that spends five months heating its buildings. The case here is winter destratification with HVLS fans, which typically recovers 20–30% of the gas burned heating a 12 m logistics hall, with summer air movement as a useful second benefit.

Temperate, with canicule heatwaves pushing 38–42 °C in the south and the Rhône corridor

The buying trigger in France is regulatory as much as thermal: the Labour Code obliges employers to protect workers from heat, and the 2003, 2019 and 2022 canicules turned that into a live inspection topic. HVLS fans suit every region; in Provence and Occitanie the summer air is dry enough that ductable evaporative coolers add real cooling on top.

Muggy 35–38 °C Po Valley summers at high humidity, hot and dry in the south

The Po Valley is the awkward case: Lombardy, Veneto and Emilia-Romagna combine 35–38 °C with the stagnant, muggy humidity the basin is notorious for, which leaves little wet-bulb depression for an evaporative cooler to exploit. HVLS fans and extract ventilation carry the north. Puglia, Basilicata and Sicily are dry enough that ductable coolers make sense.

38–44 °C inland summer highs at only 20–30% relative humidity

Inland Spain is the best evaporative cooling territory in Western Europe. Madrid, Zaragoza, Seville and Córdoba routinely pass 40 °C with humidity down at 20–30%, which is a Gulf-like wet-bulb depression and yields drops of 10–14 °C on supply air for about a tenth of the running cost of refrigeration. The Mediterranean strip is more humid, where HVLS fans take more of the load.

Mild maritime climate, 22–32 °C summer peaks, long heating season

Belgium buys air movement for heating economy and air quality, not for cooling, so evaporative equipment is off the table here. HVLS destratification in tall logistics halls is the real proposition, supported by inline and extract fans. One honest caveat: around Antwerp’s chemical cluster, ATEX zoning often applies and our standard motors are not ATEX rated.

38–42 °C summer highs in the Athens basin and Thessaly at low humidity

Greek summer heat arrives dry, which is what evaporative cooling needs. The Athens basin, Thessaly and the inland Peloponnese run into the high thirties and low forties at modest humidity, so ductable coolers give a genuine 9–13 °C drop. Island and immediate coastal sites are damper, and there HVLS fans are the safer specification.

Cold, long heating season, brief July warm spell around 25–30 °C

Evaporative cooling is the wrong product for Finland and we will not sell it here. What works is destratification: in a heated hall the warm air sits at the roof, and HVLS fans bring it back down, which is a heating-cost argument rather than a comfort one. Extract fans handle sawdust, welding fume and moisture loads the rest of the year.

Long cold winters across most of the country, 38–40 °C dry summer peaks in the south

Russia is a destratification market before it is a cooling market. Warehouses and machine shops with 10–14 m roofs burn most of their heating budget warming air nobody stands in, and HVLS fans pay back on the gas bill rather than on comfort. Only the south — Rostov-on-Don, Krasnodar, Volgograd, Astrakhan — is dry and hot enough in July and August for evaporative coolers to earn their place.

Continental steppe and desert, 35–40 °C dry summers, winters to −25 °C

Kazakhstan is one of the few markets where both of our arguments are true at once. Almaty and Shymkent run 35–40 °C at summer humidity low enough for evaporative coolers to drop supply air 12–15 °C, while winters severe enough to dominate the energy bill make HVLS destratification an equally straightforward sale into the same buildings.

Dry continental, 40 °C+ summer afternoons at 15–25% relative humidity

Few places suit evaporative cooling better. Tashkent, Samarkand, Bukhara and the Fergana valley all pass 40 °C with humidity low enough that a wetted pad does most of the work a compressor would otherwise do. The constraint here is logistics rather than physics — the country is double landlocked, so plan lead times accordingly.

Very wide range — arid 40–45 °C summers in the Southwest, humid 32–38 °C summers across the Southeast and Gulf states

The United States is the largest and most contested HVLS market in the world, and we do not pretend to arrive with brand recognition. We compete on landed price, honest lead times and a specification that stands up to comparison. Evaporative cooling is already well understood in Arizona, Nevada, New Mexico, West Texas and inland California, where swamp coolers are routine; in the humid Southeast it is the wrong product and we say so rather than sell it.

Long cold winters from −15 °C to −30 °C inland, short warm summers, genuinely dry Prairie heat in July and August

Canada is not a cooling sale for most of the year, and it would be dishonest to pitch it as one. The argument here is destratification: a heated warehouse with a 12 m roof stacks its warmest air where nobody works, and HVLS fans running slowly in reverse-season mode push it back to floor level, commonly cutting heating energy 20–30%. Prairie summers in Calgary, Regina and Winnipeg are dry enough that evaporative cooling does have a real regional niche — but it is a niche, not the headline.

Northern plateau and Bajío hot and dry at 35–42 °C with 15–30% RH, Gulf and Caribbean coasts hot and humid

The northern plateau and the Bajío — Monterrey, Saltillo, Torreón, Chihuahua, Hermosillo, León, Querétaro, Aguascalientes — are classic swamp-cooler country, and unusually for an export market the habit is already established: plant engineers there know what an enfriador evaporativo does and buy on pad quality, airflow and motor life rather than needing to be convinced. The coasts are the exception. In Veracruz, Tampico and Cancún the humidity kills the effect, so we quote HVLS fans and exhaust there.

Hot and humid across the industrial south-east, north-east coast and Amazon, with a semi-arid interior in the north-eastern sertão

Evaporative cooling is the wrong tool for most of Brazil and we will not quote it where it cannot perform. São Paulo, Campinas, Manaus, Recife and Salvador all carry enough moisture in the air that a wet pad buys you humidity rather than comfort. What works is air movement and heat extraction: HVLS fans over the floor and hammer exhaust fans in the roof. The genuine exception is the semi-arid sertão around Petrolina and Juazeiro, where the air is dry enough for evaporative cooling to earn its place.

Determined by altitude — humid 30–35 °C on the Caribbean and Cauca lowlands, a steady 14–19 °C on the Bogotá savanna at 2,600 m, mild spring-like air in Medellín

It would be wrong to describe Colombia as a hot country. Barranquilla, Cartagena and Cali are hot and humid, so air movement and extraction are what deliver comfort there. Bogotá sits at 2,600 m and never really gets hot at all — its buildings need ventilation, greenhouse airflow and destratification in tall sheds, not cooling. Medellín’s Aburrá valley is mild year-round. We quote by altitude and city, and evaporative cooling is rarely the right answer anywhere in the country.

Coastal desert with almost no rain — hot and dry 32–38 °C in Piura and inland Ica, but mild and persistently damp in Lima under the garúa sea fog

Peru needs explaining rather than generalising. The coast is a desert, yet Lima itself is one of the odder climates we supply: rainfall is negligible but the garúa fog keeps relative humidity high and temperatures moderate, so evaporative cooling underperforms there despite the surrounding sand. Move north to Piura or inland to the Ica valley and the air is genuinely hot and dry, where ductable evaporative coolers work well. We specify by valley, not by country.

Three climates in one country — the hyper-arid Atacama in the north, hot dry 32–35 °C summers in the central valley, cool and wet in the south

Northern Chile is close to the theoretical best case for evaporative cooling: Antofagasta, Calama and Iquique sit in the driest desert on earth, and mining camps, workshops and change houses there gain a large temperature drop for very little power. The honest constraint is not climate but water — availability and quality both. Central Chile around Santiago and Rancagua has hot dry summers that suit evaporative well. The south, from Concepción to Puerto Montt, is cool and damp, so there we sell ventilation and destratification instead.

35–45 °C inland summer highs, very low humidity across most of the continent

Inland and southern Australia have low summer humidity and a long-established evaporative cooling culture. Northern tropical Queensland and the Top End are humid, where HVLS fans are the better fit.

Temperate maritime, humid year round, summer highs mostly 22–30 °C

New Zealand air is humid almost everywhere, which leaves very little wet-bulb depression for an evaporative cooler to work with, so we do not lead with one here. The products that do fit are HVLS fans for air movement and winter destratification in tall sheds, and exhaust fans for the heat, steam and odour loads that dairy, meat and packhouse operations generate.