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Swamp Cooler Average Costs. 1  A whole house swamp cooler might cost $1,500 to $4,500 installed. 2  Two-stage evaporative coolers, which produce less in-home humidity by cooling the air before it passes through the moist pads, are quite a bit costlier than the one-stage coolers described above.
Excellent work! I certify that these simple water based coolers are surprisingly effective. Only if the humidity is low. I always get excited reading about these and &quot;swamp coolers&quot;, but when it's hot in my area, it's always very humid as well.