Compare Coolzy with other Portable Air Conditioners
Australian customers awarded Coolzy best portable air conditioner for 2022.
Coolzy produces more intense local cooling than other portables. We will explain why on this page.
Coolzy is the only truly portable cooling solution because it is small and easy to move or carry. Traditional portable room aircon units are large, heavy, and difficult to carry.
Coolzy is much quieter and provides the lowest cost, most environmentally responsible cooling solution in the world.
Comparison Table
Here is a summary table comparing Coolzy with other cooling solutions. We assumed three months operation in summer, 12 hours daily with a typical capital city electricity price. Read more explanations to follow.
Comparison Table | Average purchase price | Average monthly cost | Apparent Cooling |
Coolzy {340W) | 49,900 | 3,900 | 3 – 6 °C (8 – 12 °C with tent) |
Ceiling Fan {130W) | 17,500 | 1,100 | 2 °C |
Water Cooler {150W) | 20,000 | 1,500 | 3 – 7 °C |
Cheap Portable {1200W) | 45,000 | 8,100 | 3 – 4 °C |
Split {1000W) | 95,000 | 12,100 | 8 – 10 °C |
Split (large) {1800W) | 120,000 | 15,600 | 8 – 10 °C |
Split (already installed) {1800W) | 0 | 8,100 | 8 – 10 °C |
Split System Air Conditioner
Understanding just a little about a split system air conditioner will help you to better appreciate the difference between Coolzy and a portable room air conditioner.

A 1.5 ton wall-mounted split air-conditioner creates 18,000 BTU every hour, enough to cool a 12 ft x 15 ft (17 square metre) room by 10 – 12 °C (18 – 22 °F).
100 BTU cooling per spare foot.
The wall unit cools room air and transfers heat to an outdoor unit with a compressor and fan.
The fast-moving cool air mixes with room air and spreads through the room.
The air-conditioner uses about 1,600 – 1,800 Watts electricity.

A normal 1.5 ton portable room air-conditioner creates 18,000 BTU cooling every hour and uses about 1,800 Watts electricity.
However, it provides much less room cooling, only 3 – 4 °C (5 – 7 °F).
Why?
A: About 4,000 BTU offsets heat radiating from the hot exhaust pipe.
B: About 9,500 BTU offsets heat from outside air sucked into the room. This outside air replaces the room air sucked into the machine and pumped outside through the pipe.
C: Only 4,500 BTU remains to cool the 180 square feet room: that’s only 25 BTU per square foot, about one quarter the room cooling from the split AC.
(numbers change slightly, depending on temperature, humidity, window kit installation, door opening, building structure, and the characteristics of the aircon model)

Coolzy creates about 3,500 BTU cooling every hour and uses only 340 Watts electricity.
Coolzy focuses the cooling on one or more people nearby, over 40 square feet maximum floor area. That’s nearly 90 BTU per square foot, so the cooling is much more intense compared with a portable air-conditioner.
The small amount of warm air rises to the ceiling, just like warm air from your kitchen refrigerator. It escapes through the open window (or doorway).
The cool air jet provides up to 300 BTU per square foot cooling intensity at three feet distance.
The apparent cooling inside the optional Igloo tent is 8 – 12 °C (14 – 18 °F), much the same as with a split air-conditioner, but with 80% less electricity.
Now consider size, weight, noise and the total cooling cost.

Coolzy is smaller, much lighter, and easy to carry. You can use it anywhere, even outside in sheltered places.
A normal ‘portable’ air-conditioner is too large and heavy to carry without help, and must be near a window or doorway.
A ‘portable’ air-conditioner makes about the same noise as a kitchen juicer. It is too loud for most people to sleep with.
Coolzy makes much the same sound as an electric fan, ideal for sleeping.
When and where do you need cooling?
A split air-conditioner is great for cooling a crowd.
However, using a split AC all the time costs more than most families can afford, and you install one for every room where you need cooling (or heating in winter).
Coolzy is great for one or two people sleeping.
Coolzy is fine for chatting or watching TV together.
Coolzy is great for working at a desk or in a large space like a warehouse.
Coolzy allows cooling and privacy.
There’s no need to be in the same room as everyone else to be cool.
Coolzy is the only truly portable cooling solution.
What’s the total cost?
For five months cooling in summer Coolzy costs just Rs 47,000 a year including purchase repayments and electricity.
For five months cooling in summer, each single split air conditioner costs about Rs 97,000 – 140,000 a year including purchase repayments, installation, and electricity.
A portable air conditioner provides much less cooling, and still costs Rs 100,000 a year, of which 80% is the cost of electricity.
Coolzy is the least expensive, simplest, most sustainable cooling solution.
(assumes monthly payments for 3 years, markup rate 25%, Rs 30 electricity tariff, 12 hours daily use)