Aquarium heater vs Electric sauna: which costs more to run? (2026)
Baseline uses U.S. average $0.180/kWh, typical wattage, and typical hours/day from our catalog. At that rate: Aquarium heater ~$9.71/mo (54.0 kWh/mo) · Electric sauna ~$72.81/mo (405.0 kWh/mo).
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Estimates below use the rate you pick (defaults match your locale when possible). The summary paragraph above stays at U.S. average for SEO; see methodology for sources.
$0.180/kWh
Higher cost: Electric sauna · +650% ($63.10/mo vs Aquarium heater)
Aquarium heater
Lower cost- Typical watts
- 150 W
- Hours/day
- 12
- Monthly est.
- $9.71
- kWh/mo
- 54.0
Electric sauna
Higher cost- Typical watts
- 4500 W
- Hours/day
- 3
- Monthly est.
- $72.81
- kWh/mo
- 405.0
Electric sauna is estimated to cost more per month at typical use.
Compare by U.S. state
State pages use local utility averages (TYPE7). Open a state for either appliance to fine-tune hours and watts.