Are portable AC units worth it at home? My advice after testing one during a heat wave

6 hours ago 4
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ZDNET's cardinal takeaways

  • The EcoFlow Wave 3 is simply a portable aerial conditioner and heater that costs $1,299 connected its ain and $2,299 with the add-on battery.
  • This is simply a portable aerial conditioner and heater that is much almighty than its predecessor
  • It is besides off-grid acceptable for camping, RVing, and adjacent helping successful a pinch.
  • The Wave 3 is pricey, large successful immoderate settings, and is not arsenic businesslike successful utmost heat, nonstop sun, oregon structure camping.

For Prime Day, the EcoFlow Wave 3 with the artillery add-on is connected merchantability for $1,399 astatine Amazon, a sizable 39% discount.


Many parts of the US are sizzling close now, incapable to flight the utmost vigor alerts perpetually flashing connected the quality and our phones. I regularly experienced triple-digit temperatures portion surviving adjacent the godforsaken for 10 years. But there's a large quality betwixt that and the 100+ temperatures with humidity levels supra 60% galore of america are presently experiencing connected the East Coast. 

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Like galore unlucky Americans, 1 of the 2 overworked aerial conditioner units near america hanging during the latest vigor wave. HVAC repair companies are swamped with work requests, and we were struggling, truthful I pulled retired the EcoFlow Wave 3.

This portable portion is an upgrade from its predecessor, the Wave 2, and features Auto, Dehumidify, Sleep, and Pet modes. Aside from being comparatively dense (over 50 lb erstwhile you adhd a battery), the Wave 3 is casual to acceptable up and link to the EcoFlow mobile app. The instrumentality uses Wi-Fi and Bluetooth to link to your phone, which you tin past usage arsenic a distant power and to set settings, giving you an other furniture of convenience. 

I've been investigating the EcoFlow Wave 3 sporadically for a fewer weeks, but began utilizing it much religiously aft the summertime vigor rolled around. 

Also: Buy EcoFlow portable powerfulness stations and aerial conditioners for astir 50% disconnected for Prime Day

My husband's location bureau is well-insulated and soundproof, but it's an summation that wasn't decently incorporated into the home's existing HVAC strategy and doesn't person immoderate windows. As a result, it gets precise blistery successful summertime and precise acold successful the winter. 

EcoFlow Wave 3 portable aerial  conditioner
Maria Diaz/ZDNET

This country turned retired to beryllium a large spot to trial the Wave 3 erstwhile the canine days of summertime began. By routing the exhaust vent done an existing opening built into a partition to way cords, the Wave 3 successfully lowered the somesthesia by astir 20 degrees successful nether an hour. 

It maintained the acceptable somesthesia for arsenic agelong arsenic the instrumentality was powered on. The artillery lasted a mates of hours erstwhile utilized successful Max mode, which is the highest setting, but you tin agelong it to up to 8 hours erstwhile you usage it successful Eco mode.

Also: Storms and atrocious weather? How to prep your tech up of imaginable emergencies

I recovered the EcoFlow Wave 3 champion suited for insulated areas implicit tents and places not built adequately for clime control. It's a adjuvant comfortableness measure, but 1 you shouldn't trust connected for safety.

The Wave 3 is much almighty than its predecessor, but it isn't meant to regenerate a full-size aerial conditioning unit. It features 6,100 BTU for cooling and 6,800 BTU for heating, which is astir fractional the capableness of a wall-mounted portion that costs astir a 3rd of the price. So you're paying other for the convenience of portability of the Wave 3, particularly erstwhile paired with a artillery and portable star panels. 

EcoFlow Wave 3 portable aerial  conditioner
Maria Diaz/ZDNET

Whether that convenience is worthy the terms hinges chiefly connected the idiosyncratic usage case. 

Once our upstairs A/C discontinue successful the mediate of a vigor wave, I had to repurpose the Wave 3 from a investigating portion to chill down my kids' playroom during the time and a chamber astatine night. The apical floor, wherever the vigor concentrates during summer, reached up to 93 degrees, with the outdoor somesthesia astatine 102 degrees. 

Also: I'm beating the vigor and taking these 5 gadgets to the excavation this summer

My kids are location for summertime break, and they emotion spending clip successful their playroom, which has each their toys, trade supplies, and a TV, but they couldn't bash it erstwhile it was 90 degrees there. I decided to acceptable up the Wave 3 connected a array successful the playroom and chopped retired a portion of foam for the model utilizing the stencil included with the unit.

I past routed the inlet and exhaust ducts done the portion of foam and ran the Wave 3 to bring the room's somesthesia from 86 to 75 degrees. The inlet duct pulls the caller extracurricular air, portion the exhaust vents the blistery aerial from the cooling process. I besides ran the drain enactment retired the model to merchandise the h2o collected during condensation. 

EcoFlow Wave 3 portable aerial  conditioner
Maria Diaz/ZDNET

Admittedly, the Wave 3 struggled to chill down the country efficiently aggregate times. For example, it brought the somesthesia down to 82 degrees successful nether 20 minutes connected 1 occasion, but past it took implicit an hr to get to 78. The portion past maintained that temp, adjacent if acceptable to 75. At this time, the outdoor somesthesia was 96 degrees, with the midday prima shining down connected the model adjacent to the Wave 3. 

This and different tests made maine recognize that the Wave 3's cooling capableness is constricted nether utmost conditions, similar vigor waves. I look guardant to seeing however the heating performs during the wintertime months. 

Also: This powerfulness presumption kept my fridge moving during an outage (and conscionable dropped by implicit $1,000)

Even so, 78 degrees is overmuch much comfy for my kids, particularly portion they were each successful the country with the Wave 3. They dove into mounting up racetracks and doing crafts, leaving my hubby and maine capable to enactment uninterrupted.

Because of this, I wouldn't trust connected the Pet mode advertised by EcoFlow to support your pets harmless successful a blistery car. This Pet mode is meant for erstwhile you person your Wave 3 and your favored successful your vehicle, and you person to permission your furry person behind. When the EF Wave 3 detects a somesthesia of 77 degrees oregon higher, it begins cooling to forestall your favored from overheating. 

ZDNET's buying advice

The EcoFlow Wave 3 is built for off-grid adventurers, whether van lifers, RVers, boaters, oregon tiny location dwellers. However, it isn't meant to beryllium a instrumentality you scope for successful emergencies. Its show is constricted successful utmost conditions, truthful I'd urge it to marque trips much comfortable, not to forestall vigor changeable oregon hypothermia.

It's a applicable device, with improved show implicit the Wave 2 and the quality to complaint it utilizing star energy, but it is besides beauteous expensive. It's effectual successful up to astir 175 quadrate feet but tin conflict successful larger areas. 

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