Heating and Cooling — FAQ
What size swamp cooler do I need for a 10x10 room?
A 10x10 room (100 sq ft) needs 200-300 CFM. Look for compact units with 1-1.5 gallon tanks. The MEPTY windowless model is ideal—powerful enough without creating uncomfortable drafts.
How often will I need to refill the water tank?
Most small-room coolers run 6-8 hours per gallon on medium speed. A 1.6-gallon tank typically lasts through the night. Units with 4+ gallon tanks can run 24+ hours but weigh significantly more when full.
Can I add ice to make the air colder?
Yes, but only in designated ice pack compartments. Never put loose ice in the water tank—it can damage the pump. Models like the Uthfy with 6 ice packs provide the best performance boost.
Are swamp coolers better than portable ACs for small rooms?
Swamp coolers use 75% less electricity and don't require window venting, making them ideal for renters. However, they only work well in dry climates (under 50% humidity). Portable ACs cool better but cost more to run.
How much electricity do these units consume?
Small swamp coolers typically draw 50-100 watts—similar to a light bulb. Running 8 hours daily costs $2-4 monthly. Compare this to portable ACs at 800-1500 watts costing $30-60 monthly.
Will a swamp cooler work in humid climates?
Evaporative cooling becomes ineffective above 60% relative humidity. In humid regions, consider a dehumidifier paired with a fan instead. Test your indoor humidity—if it's consistently over 50%, a swamp cooler won't help much.
