Quote:
Originally Posted by SC380D
Evaporative cooler
Especially in dry areas, and even more especially if it can be plumbed into the vent system on the firewall, downstream of the blower motor. Fill with water, turn the blower motor on, and voila.
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That's still fairly popular for trucks in my country, yet I have never seen any evaporative cooler plumbed into the vent system on the firewall. Usually it's installed on a roof-mounted structure with its own vents, as the incoming air tends to go down right after going through the humidifier.