INDOOR COMFORT SUPPLY
HVAC & EVAPORATIVE COOLING PARTS AND SUPPLIES
Air Conditioning Parts
A/C condenser fan motors, capacitors, contactors, etc.
Homeowners & DIY welcome.
Evaporative Cooler Pads
Mastercool pads, extra thick aspen cooler pads, custom rigid swamp cooler pads.
Swamp Cooler Parts
Parts breakdowns for Mastercool coolers and various common swamp cooler parts.
Metal Duct Fittings
Sheet metal ductwork for HVAC. Tee wyes, vent pipe, elbows, register boxes and more.
Flexible Ductwork
Insulated flex duct makes adding air runs easy, and saves time and money.
Air Registers & Vents
HVAC vents, register covers, and grilles. Many sizes and styles to choose from.
Swamp Cooler Covers - Air Conditioner Covers
Protect your swamp cooler and keep your heated air in the winter with a cooler cover.
Evaporative Coolers
Rooftop or wall mount evaporative coolers that are designed to cool the whole house.
Mobile Swamp Coolers
Wide range of swamp coolers on wheels to cool small and large spaces.
Stainless Steel
Wet Section Upgrade
Upgrade or replace a wet section with stainless steel and forget about rust! Fits Adobeair Mastercool and Symphony.
Industrial Evaporative Coolers
High capacity ducted swamp coolers for warehouses, mechanic bays and garages.
Industrial Mobile Coolers
High capacity portable swamp coolers for garages, warehouses, mechanic bays, and tent events.
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Some information about evaporative coolers, the science behind the technology, the history of their use, and information about current breakthroughs can be found in the links here. We hope you find these informative.

History
This is a pretty comprehensive entry on the history of evaporative coolers.
PATH Data
Some good information with cost and energy savings analysis for evaporative coolers.
Evaporative Cooling - What Are the Benefits?

I've been asked this question many times over the years and even with the increasing efficiency of forced air conditioning units I can still come up with several reasons why evaporative cooling is still a useful and beneficial cooling option, especially in the Southwest.

First and foremost is the initial installation cost. Rooftop and split system air conditioning units are subject to a government mandated efficiency minimum that has forced air conditioning manufacturers to upgrade to more expensive refrigerants, components, and cabinet sizes. This drives the cost of air conditioning units higher and higher. Meanwhile, evaporative cooling unit costs have stayed fairly low. A typical rooftop air conditioner can cost more than $6000 to have installed on a 2000 square foot house. An evaporative cooler for the same size house can be installed for as little as $1500. Even less if you are able to do it yourself.

Second, evaporative cooling is a green technology. Evap coolers use up to 90% less electricity than air conditioning units. They also do not use chemical refrigerants that have been linked to upper atmosphere ozone depletion. Coolers only use water and air.

Another nice benefit of evaporative cooling, which is actually subject to preference, is the addition of moisture to the conditioned air. The moist air can feel very comfortable, especially in dry climates like the Southwest United States. Air conditioning actually removes moisture in the air as it cools it, leaving the conditioned air very dry.

Now for the math.

While the operating costs associated with air conditioning have dropped dramatically over the last ten years, evaporative coolers still have them beat hands down. A standard residential evaporative cooler on a 2000 square foot home, operating on 230 volts pulls about 6.8 amps which equals 1.564 kilowatts. If your cooler ran for 10 continuous hours at an average rate of 11 cents per KwH it would cost $1.72 per 10 hours.

A 5 ton, 13 seer package heat pump A/C unit on the same 2000 square foot home pulls about 32.7 amps at 230 volts for a total of 7.521 kilowatts. 10 hours at 11 cents per KwH would be $8.27 per 10 hours.

What that boils down to is that even a high efficiency A/C unit costs 4.8 times more to run then a similar sized evaporative cooler!

So, is it worth it to have a new evaporative cooler installed or to fix up the existing one? Absolutely! It's all in the numbers.

For more information about evaporative cooling check out http://www.indoorcomfortsupply.com/

Bryan Robert is the owner of Indoor Comfort Supply in Phoenix, AZ and has over 20 years experience working with evaporative cooling and air conditioning systems.

Instructional Videos
by my friend Robert Ortega
at Phoenix Manufacturing
About Evaporative Cooling
Evaporative Cooling and Water Usage