How to Determine the Power Consumption Cost of Running a Dehumidifier or Air Mover

During water or fire restoration jobs, the equipment used by contractors can consume a significant amount of electricity. It is essential for restoration professionals to calculate the electricity costs associated with the job to ensure these expenses are included in the property owner's insurance claim. Below is a formula to help you estimate the power consumption cost of operating a dehumidifier or air mover during a typical restoration project.

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Electricity Use Calculator

Start by converting amp draw to kilowatts per hour (kWh). Then multiply the kWh by the local rate per kilowatt hour.

Here is the formula:

1. Amps x voltage = watts per hour
2. Watts per hour / 1,000 = kilowatts per hour (kWh)
3. kWh x cost per kWh = hourly electricity cost per unit

Example: Dry Air Typhoon Air Mover

1. 3 amps x 115 volts = 345 watts per hour
2. 345 watts per hour / 1,000 = 0.345 kWh
3. 0.345 x $0.16* = $0.0552 hourly electricity cost

Result: Operating the unit for 24 hours would cost $1.32 per day ($0.0552 x 24)

If you estimate that you will need to run 15 of these air movers for 120 hours, the total cost would be calculated as follows:

15 air movers x 120 hours x $0.0552 hourly power cost = $99.36

*As of 2025, the national average cost per kWh was approximately 16.88 cents. However, electricity rates can vary widely by state, so you may need to check with the local power utility company or request a copy of the property owner's electricity bill to ascertain the cost per kWh in your area.

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1. Appliances
2. August 21, 2025

5 Tips for Buying a Humidifier

Consider the size of your space, the type of humidification you prefer, and your budget to find the best humidifier for your home.

Indoor air can become uncomfortably dry, especially during winter when heating lowers humidity levels. Dry air can exacerbate allergy symptoms, cause damage to furniture, and impact your family's health.

If you're facing these issues, a humidifier could be the ideal solution. Humidifiers release moisture into the air, elevating humidity to suitable levels. This helps protect your home and furniture, enhances indoor comfort, and supports family health. Here are five important points to consider when choosing the perfect humidifier for your home.

1. The Size of Your Space

Portable humidifiers are suitable for rooms smaller than 400 square feet. Tower or console models are best for spaces larger than 400 square feet, while units with larger water tanks can serve areas exceeding 1,000 square feet. If you want to distribute moist air throughout your entire house, consider in-duct or online models.

2. Humidification Type

Another crucial decision involves selecting the humidifier type. Warm-mist humidifiers heat water, killing bacteria and allergens, but require regular cleaning due to heating elements. In contrast, cool-mist models operate without heating elements, consuming less electricity. Ultrasonic humidifiers utilize sound waves to vaporize water, making them very quiet and energy-efficient.

3. Tank Size

The humidifier's tank size affects its runtime before needing a refill. Some models can function for several days without refilling, while others may only operate for a few hours. Determine your usage patterns—daytime versus overnight—to choose a model with an adequate tank size.

4. Cost

Small humidifiers can be priced as low as $30, but units with more features or those that cover larger areas can cost several hundred dollars. Basic whole-house models typically range from $100 to $300, while high-end options can reach up to $1,100, excluding professional installation costs.

5. Extra Features

Models equipped with built-in humidistats can monitor environmental humidity and alert you if levels become too high or low. Timers and auto-shutoff features can turn the humidifier off at specific times or when the tank is empty. Indicators for water tanks and filters inform you when it's time to refill or replace them.

Now that you are aware of the key features to look for, you can select the best humidifier to maintain the health and comfort of your home and family.

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