Heating and Cooling — FAQ
What size swamp cooler do I need for my home?
Calculate 20-30 CFM per square foot. A 300 sq ft bedroom needs 1800 CFM, 600 sq ft living room needs 3600 CFM, and 1000 sq ft open area needs 5000+ CFM. Match your ceiling height—add 10% for 10-foot ceilings.
Do ice packs really make swamp coolers work better?
Yes. Ice packs lower water temperature by 15-20°F, which chills the air 5-10°F more than water alone. Six or more packs maintain cold output longer. Pre-freeze packs overnight for maximum effect during peak afternoon heat.
Can I use a swamp cooler in humid climates?
Swamp coolers work best under 50% humidity. Above 60%, cooling drops significantly. Use them in dry climates or during low-humidity days. Pair with a dehumidifier in moderately humid regions for limited improvement.
How often should I clean the water tank to prevent mold?
Empty and wipe tanks weekly during regular use. Deep clean with vinegar monthly. Stagnant water breeds bacteria and mold within 3-5 days. Units with continuous fill need less frequent cleaning but still require monthly maintenance.
What's the difference between CFM and BTU ratings?
CFM measures airflow volume—how much air moves. BTU measures heat removal. Swamp coolers use CFM; traditional ACs use BTU. A 5000 CFM swamp cooler cools like a 12,000 BTU air conditioner but uses 75% less electricity.
Are swamp coolers cheaper to run than air conditioners?
Yes. Swamp coolers use 200-500 watts versus 1500-3000 watts for ACs. Expect $20-40 monthly electric costs versus $100-200 for AC. Water usage adds $5-10 monthly. Total operating costs are 60-70% lower than traditional air conditioning.
