Electric arc welder vs Swamp cooler (evaporative): which costs more to run? (2026)
Estimates use U.S. average $0.180 $/kWh, typical wattage, and typical hours/day from our catalog. Adjust on each appliance page.
Electric arc welder
- Typical watts
- 1500 W
- Hours/day
- 0.3
- Monthly est.
- $2.43
- kWh/mo
- 13.5
Swamp cooler (evaporative)
- Typical watts
- 400 W
- Hours/day
- 8
- Monthly est.
- $17.26
- kWh/mo
- 96.0
Swamp cooler (evaporative) is estimated to cost more per month at typical use.