How to select the right cooler for you? Complete Cooler Sizing Guide

How to select the right cooler for you? Complete Cooler Sizing Guide

by Pravin Solanki on May 18, 2022

Evaporative air coolers are the most efficient and energy-saving devices for getting cool and moisturized air in hot summers. They are an excellent way for cooling rooms, RVs, tents, a backyard, or even dog houses due to their portability and durability.

What Size Evaporative Cooler Do You Need? How Do You Decide?

Unfortunately, it’s not easy to select a cooler amongst different models available in the market.

Swamp cooler sizing is different from air conditioner sizing as both the devices use different cooling methods and serve different purposes. On the other hand, air coolers use Cubic Feet Per Minute (CFM) to measure cooling capacity whereas air conditioners use British Thermal Units (BTU) for the same.

What Size Evaporative Cooler Do I Need?

  1. Humidity

The humidity level in the room you need to cool will define the efficiency of the cooler. Evaporative air coolers work the best in hot dry climates.

  1. Insulation

A poorly insulated place will need more energy from an evaporation air cooler as compared to a place with solid insulation.

  1. Size Of The Space

It’s necessary to check the size of the space you need to cool and the height of the ceiling to choose the right air cooler.

  1. Personal Needs

The size of an evaporative air cooler will depend on how you use your cooler. For instance, there is a huge sizing difference on whether you want to cool the entire room or your personal space.

This chart will help you buy the right Bonaire Durango portable evaporative air cooler for your home.

Evaporative Cooler Size Chart

It’s important to consider the ceiling height while sizing your evaporative cooler. The below chart shows the sizing guide of evaporative coolers on the basis of the area, water capacity, and BTU capacity. This chart also shows the ideal cooler model that can fit the exact requirements.


Area in Square Feet


Water Tank Capacity

Ideal Bonaire Cooler Model

Up to 110

45 Watts (110-120V~60Hz)

1.5 gallon

Durango Duet

Up to 175

85 Watts (110-120V~60Hz)

3 gallons

Durango 350 CFM

Up to 400

125 Watts (110-120V~60Hz)

9 gallons

Durango 600 CFM

Up to 550

150 Watts (110-120V~60Hz)

9 gallons

Durango 800 CFM

Up to 950

200 Watts (110-120V~60Hz)

15 gallons

Durango 3100 CFM

Up to 1600

300 Watts (110-120V~60Hz)

33 gallons

Durango 5300 CFM

Evaporative coolers are the best option for personal cooling. Be it working out, or focusing on deadlines, an evaporative air cooler is the best for a flow of refreshingly fresh air. Bonaire’s evaporative air coolers are portable, compact, and durable so you can enjoy the most effective, eco-friendly breeze anytime.