Keystone Dehumidifier Review

If you’re looking to purchase a 70-pint dehumidifier, the Keystone KSTAD70C model could be a great choice for you.

I’ve done the market research, and the Keystone dehumidifier is one of my favorites in the 70-pint category. Every product has unique strengths and weaknesses, so I think it’s important for me to honestly and accurately provide my findings to you. When I weighed the pros and cons, I found the Keystone dehumidifier to be one of the best 70-pint dehumidifiers on the market.

Before I do a deep dive into the product review, below is a very quick snapshot of my findings. If you are in a rush, you can simply click below to check the latest price and customer ratings on Amazon.

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Features At A Glance
  • Removes up to 70-pints of moisture per day
  • Energy Star rated
  • Designed for rooms up to 4,500 square feet
  • Electric controls with LED display
  • 24-hour timer for continuous or timed usage
  • Normal, Turbo, and Auto-Defrost settings
  • 1.6 gallon water tank with transparent water level indicator
  • Full bucket alert with automatic shut off
  • Removable, easy clean dust filter
  • Easy glide wheels and handles to move from room to room
Product Includes
  • Dehumidifier (40lbs, 10.8 x 15.4 x 23.2 inches)
  • Instruction Manual
  • Great value for money
  • Positive customer reviews indicating reliable, consistent performance
  • Good energy efficiency / Energy Star rated
  • Low noise operation
  • Easy to move from room to room
  • Built with slightly lower quality materials than comparable models
  • Continuous drainage option requires special installation

Who Needs A Keystone Dehumidifier?


keystone dehumidifier

Before you read any further, it’s important to know if the 70-pint Keystone dehumidifier is right for you. It’s not a must have for everyone, so you can save some money if you don’t need such a heavy-duty machine. I have written a comparison review for the best desiccant dehumidifiers in 2019, which you can check out here. On that list you’ll find plenty of affordable and quality machines which might work great for you depending on your specific needs.

But back to 70-pint dehumidifiers. If you have a basement or a larger space (up to 4,500 square feet), then you should consider getting a 70-pint dehumidifier. These machines will have the power and capacity you need to consistently control your indoor humidity levels effectively.

The Keystone dehumidifier in particular works great for tough humidity jobs. It has a Turbo mode, which uses the quickest fan speed to rapidly remove excess moisture from your air.

This machine is also great in cold weather and can work in temperatures as low as 41 degrees on the Auto Defrost mode. I read a review from a customer in the Midwest who loved this machine for its ability to prevent windows from freezing over in the winter.

In summary, if you have a basement, a larger space, or a difficult humidity situation, then a 70-pint dehumidifier could be the machine for you. If any of these apply to you, read on to better understand the features of the Keystone dehumidifier, which is my top rated 70-pint dehumidifier.

Features Of The Keystone Dehumidifier?


As it is often one of the most important factors in making a purchase, I will start with the price. If you’ve already decided that a 70-pint dehumidifier is right for you, then hands down the Keystone model offers great value for money.

While not inexpensive, the Keystone dehumidifier is significantly cheaper than the main competitor, the Frigidaire. Typically, I’ve seen the Keystone selling for ~30% or ~$100 less than the Frigidaire.

The downside to affordability is that some customers have noted the materials are not as sturdy as they’d expect. Still this does not seem to have had any impact on durability or performance.


In terms of performance, this machine can quickly remove moisture from a high humidity environment. It works efficiently and removes up to 70-pints of water from the air every 24 hours. It dehumidifies areas up to 4,500 square feet, which is one of the largest areas for an at home dehumidifier that I’ve come across.

Give the size and efficiency, this machine will work very well for the entire home, or in a garage or high humidity part of the home.

Customer Reviews

The 70-pint Keystone dehumidifier consistently receives positive customer feedback, highlighting the reliability of this product.

Many have commented on how easy it is to assemble, and its ability to remove significant moisture within the first 24 hours of use.

One happy customer noted: “This product is a beast. I’ve had it running day and night for almost 90 days and no issues… I’m amazed at the amount of water it pulls out of the air.”

Many also enjoy that the machine runs smoothly and quietly, even on the highest Turbo setting.

At the other end of the spectrum, some have commented that they had issues with the continuous drain function with water flowing to the bucket even with the continuous drain installed. One customer provided a helpful DIY solution for this: “Turns out the factory length clear hose was about a half centimeter too long – it created a bend that didn’t allow the water to drain properly. Trimmed the clear hose slightly for a snug and straight fit and no more issues with continuous draining.”

Energy Efficiency

Overall the Keystone dehumidifier is a fairly energy efficient machine. It is Energy Star rated with minimal energy usage.

It has a power rating of 720-watts, which you can expect in the highest humidity levels. In normal to moderate scenarios the wattage could be even lower.

Furthermore, what I love about this machine is that it has an automatic function to shut-off once the desired humidity level is achieved so you won’t waste any power unnecessarily.

Additional Features

In terms of drainage, this model offers the option of a 1.6 gallon water tank or a continuous drainage adaptor. The water tank has a transparent water level indicator and will automatically shut off when the bucket is full. It will require you to regularly empty the tank, as this machine will very quickly pull water from the air and fill the bucket.

It has three fan speeds: Turbo, Normal and Auto Defrost. The Turbo speed is the quickest way to remove humidity from the air and works great for high humidity situations. The Auto Defrost mode is great if you live in a colder region. It works in temperatures as low as 41 degrees.

What I like most about this machine is how user friendly it is. It has automatic settings and an electric control with an easy to ready LED display. And it comes equipped with wheels and a handle, so you can easily move this heavy-duty machine from room to room. Customers have commented how easy the set up and maintenance are for this model.

Conclusion: My View Of The Keystone Dehumidifier (70-Pint)

The 70-pint Keystone dehumidifier could be a great choice if you are looking for a heavy-duty machine to efficiently remove moisture from the air. You can expect to remove 70-pints of water every 24-hours.

One cautionary note: if you are looking to use continuous drainage, just keep in mind that you might need to manually adjust the hose to get a snug fit. This will help prevent water from spilling into the bucket.

But overall, this product is extremely user friendly and reliable (as evidenced by consistently good customer feedback).

For more like this, check out our latest posts on Humidity Control (Humidifiers & Dehumidifiers) and Air Purifying.

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