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Cost to run a dehumidifier in New Hampshire
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$0.12/hour
Dehumidifier at 450 W in New Hampshire (27.64¢/kWh) · $37.81/month at 10 h/day
By hours of use
| Use | Per day | Per month | Per year |
|---|---|---|---|
| 1 h/day | $0.12 | $3.78 | $45.40 |
| 2 h/day | $0.25 | $7.56 | $90.80 |
| 4 h/day | $0.50 | $15.12 | $181.59 |
| 8 h/day | $1.00 | $30.25 | $363.19 |
| 10 h/day | $1.24 | $37.81 | $453.99 |
| 12 h/day | $1.49 | $45.37 | $544.78 |
| 24 h/day | $2.99 | $90.75 | $1,089.57 |
Portable dehumidifiers draw about 300-700 W; Energy Star models remove more water per kWh.
Same appliance, nearby states
| State | ¢/kWh | Per month |
|---|---|---|
| New Hampshire | 27.64 | $37.81 |
| Connecticut | 24.51 | $33.53 |
| New Jersey | 24.61 | $33.67 |
| District of Columbia | 25.98 | $35.54 |
| Rhode Island | 28.18 | $38.55 |
| New York | 28.65 | $39.19 |
| Alaska | 29.41 | $40.23 |
FAQ
How much does it cost to run a dehumidifier in New Hampshire?
At 450 W and 27.64¢/kWh: $0.12 per hour, $1.24 per day and $37.81 per month at 10 h/day.
How does New Hampshire compare with other states?
The same use costs $17.40/month in Nevada (cheapest) and $64.54/month in Hawaii (most expensive); the US average is $24.84.
Price: EIA Electric Power Monthly, Table 5.6.A (residential, August 2026 preliminary; released October 23, 2026).
Dehumidifier cost calculator · Electricity cost in New Hampshire
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