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Continuous Optimization

Just hang it on the side of your AC and let it go to work. Mistbox algorithms learn over time to minimize water consumption while maximizing savings.

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Little H2O, big savings

Easily clip the Mistbars on each side of the AC unit. Our patented misting manifold can be adjusted to fit any size system.

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Powered by wind

A small wind-turbine generator charges Misbox using exhaust air salvaged from your AC. Mistbox receives power every time the unit is running, allowing it to operate completely off-the-grid.

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Water treatment

Change filters with the push of a button.

Filter life is monitored remotely and replacement
cartridges are included with your subscription.

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Mobile app

Pull custom, real-time reporting right from the app.
You’ll always be able to see how your system is operating.

Water treatment

Mistbox’s patented multi-stage water treatment system is specially engineered to ensure the protection of your AC unit. Stage one neutralizes dissolved solids (hardness) in the water so they cannot tightly adhere to the fins of your AC condenser. Stage two kills bacteria on contact and treats surfaces to avoid algae or mold growth.

Mistbox’s water treatment technology was designed for use with municipal water supply. Please inquire if your water doesn’t meet EPA guidelines.

Installation

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Fits any size of AC
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Included Guide videos
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Installs in minutes
  • 1. Install wind turbine
    Attach the wind turbine to the panel above the condenser fan.
  • 2. Install control unit
    Fasten Mistbox to the AC unit using the included bracket.
  • 3. Clip on spray bars
    Clip the Mistbars onto the sides of the AC unit. Tubing is adjustable to fit any size AC.
  • 4. Connect water supply
    Connect to the water supply lead between a garden hose and the Mistbox control unit.

What's in the box

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Includes

Image 1 × Control unit
Image 4 × Mistbars
Image 1 × Wind turbine
Image 1 × Water filter
Image 1 × Battery
Image 1 × Water supply line

Frequently Asked Questions

  • General

    Through years of research, Mistbox has developed a custom water treatment system to ensure the fine mist won't damage your AC unit. The patent pending process kills bacteria on contact and treats metal surfaces to make algae or mold growth an impossibility. Also, dissolved solids (hardness) in the water is neutralized so hardness cannot tightly adhere to the condenser fins. The Mistbox filters have been designed to work with municipal water anywhere in the continental US. Though our method works with many international water supplies, please consult Mistbox before using outside the US.

    In short, yes. While humidity does have an effect on savings, Mistbox users should expect to see an efficiency boost between 20-38%. The lower end of that range occurs in mild, humid climates while those in hot, dry climates could expect to save more. While their efficiency might be lower, many customers in humid climates run their AC almost year round. In such cases, users still save a lot due to how much AC they use. The more you spend on AC, the higher your potential savings.

    Mistbox has a web app that can be used on desktop, as well as IOS and Android devices. We do plan to eventually add native IOS and Android apps, however, the web app contains all functionality currently.

    Yes, you can cancel at anytime. There is no cancellation fee, however, you will be required to return the hardware.

    Of course. Mistbox has been used in commercial applications across the globe. Contact us at sales@mistbox.com for more information.

  • Savings

    In short, yes. While humidity does have an effect on savings, Mistbox users should expect to see an efficiency boost between 20-38%. The lower end of that range occurs in mild, humid climates while those in hot, dry climates could expect to save more. While their efficiency might be lower, many customers in humid climates run their AC almost year round. In such cases, users still save a lot due to how much AC they use. The more you spend on AC, the higher your potential savings.

    Because the nozzles broadcast such a fine mist, only runs when conditions are right, water isn't wasted. In almost every case, you're trading pennies in water for dollars in energy savings.

    When you consider traditional sources of power generation, Mistbox is often actually saving water when the entire picture is considered. In many cases, Mistbox uses less water to save a kWh of electricity, than the power company uses to produce a kWh at a power plant.

  • Installation

    Yes, Mistbox is universally compatible to fit any residential size AC unit. The tubing between Mistbars can be adjusted to correctly fit the circumference of your unit. For units larger than 5 tons, please let us know so we can include additional tubing.

    You'll need a dedicated Mistbox for each AC unit. This is because Mistbox is designed to sense when the unit is running and optimize its misting schedule to that particular unit. As different units have different schedules, each needs its own Mistbox to efficiently maximize savings and avoid waste.

    Mistbox will alert you through the app when your filter needs to be replaced, however, we'll also be automatically shipping a replacement filter right to your door. Swapping cartridges out takes only a few seconds.

    Yes, Mistbox works on heat pumps during the summer when they are used for cooling. However, when heat pumps are used for heating in cold conditions, Mistbox won't operate as outdoor ambient temperature is too low.

    If you do not have a municipal water supply, we do not recommend using Mistbox. The Mistbox water treatement system has been designed to work with municipal water supplies that follow EPA guidelines, however, we cannot guarantee water treatment results with well water. Sediment and dissolved metals often found in well water can impact the effectiveness of our water treatement system.

    Though not necessary, our water treatment system can be used with softened water.

    Yes, Mistbox has a built in valve to control water usage. The water pressure of your home will not be affected as the misting requires very little flow even while in operation.

    If your water supply is not near your AC, you can run a water line to the area from the nearest outdoor faucet. We sell reasonably priced 30-ft UV-tolerant supply lines for use in these cases. This line can be buried as well if you so choose.

    We generally recommend that you take Mistbox down if a hard freeze is expected. The bracket system makes this process painless. See our Help Center for detailed instructions on winterization.

Save up to 30% on your AC bills