Keystone KSTAD70B dehumidifier, an unbiased review

Published in Dehumidifiers on 5th December 2014

Image from Amazon

Looking for a larger model of a Keystone dehumidifier? The model to consider will be the KSTAD70B which is an Energy-Star certified 70-pint dehumidifier.

Like the KSTAD50B, this dehumidifier has also received favourable reviews online on various sites. So to provide a wider coverage of the Keystone dehumidifier range, here is my unbiased review for this green product.

Benefits of owning a Keystone KSTAD70B

Multiple settings in a clear LED display

The Keystone KSTAD70B comes with electronic controls with clear LED display for easy programming of settings by the user. The dual fan speed settings; Normal, Turbo allow the flexibility to select the settings best suited for your environment be it a dank basement or a room with sensitive equipment.

Like the KSTAD50B, this larger Keystone dehumidifier also possesses a 24-hour timer to allow overnight programming of dehumidifying schedule.

Auto-defrost function

The auto-defrost function will allow the auto removal of frost that will build up on the evaporator coils. When frost builds up, the compressor will cycle off while the fan will continue to run until the frost disappears.

Easy to maintain and clean

This Keystone dehumidifier comes with a removable, dust filter that is easy to clean. The bucket possesses a transparent water level indicator that allows for convenient detection of the water level. There is also the continuous draining option available (hose not included) that prevents overflowing of the bucket when it is full.

Other useful designs

The KSTAD70B comes with 4 rolling caster wheels that allows for easy transportation for installation in other rooms. Besides that, it also comes with a clean filter alert that will warn the owner when the filter clogs and a full bucket alert with automatic cut off to prevent overflowing.

Another useful function will be the auto-restart option that will saves your settings in the event of a power outage.

2014 Energy Star certified

Being an Energy Star certified dehumidifier, this means that this Keystone dehumidifier utilises 15% lesser energy to remove moisture as compared to a similar sized conventional unit. The KSTAD70B has the ability to remove up to 70 pints of moisture from the air daily.

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How does the Keystone KSTAD70B rank on popular websites?


407 customers at Amazon gave the Keystone KSTAD70B an average rating of 4.4/5.0. Out of 407 customers, 258 gave it 5.0/5.0.

Best Buy

76 customers at Best Buy gave the Keystone KSTAD50B an average rating of 4.6/5.0. Out of 76 customers, 49 gave it 5.0/5.0.

Home Depot

16 customers at Home Depot gave the Keystone KSTAD70B an average rating of 4.3/5.0. Out of 16 customers, 12 gave it 5.0/5.0.


349 customers at Walmart gave the Keystone KSTAD70B an average rating of 4.5/5.0. Out of 349 customers, 230 gave it 5.0/5.0.

Customer Reviews on Keystone KSTAD70B

To ensure a well-rounded review on this Keystone dehumidifier, I have summarised the pros and cons from recent customer reviews.

The Pros 🙂

The pros mentioned by customers include,

Effectiveness in removing moisture; a customer who has this unit noted that this dehumidifier was able to effect a decrease in moisture content of his basement from an initial 70% to 55% in 4 hours, 

Good design; the filter is located on the top for easy access for cleaning with no prior requirement to remove any fasteners or covers. Cleaning of the filters is crucial in the removal of mould spores or bacteria to lower the risk of possible respiratory disease,

Ease of installation and transport; the castor wheels that come with KSTAD70B were mentioned to make transportation easy, the plug and play installation is also a mentioned pro,  

Ease of programming; customers have mentioned that the programming of a dehumidifying schedule is simple and straightforward for this unit,

Useful functions; the clean filter alert and the auto-restart option are functions that were mentioned by customers to be desirable for a dehumidifier,

The Cons 🙁

The cons mentioned include,

The bucket; the design and its durability are suspect and not a good fit for the dehumidifier,

Operational noise; there are mixed reviews with regards to the amount of noise generated by this Keystone dehumidifier during operation; though there are no obviously negative reviews,

Low quality accessories supplied; the included adaptor which allows the attachment of a regular garden hose to allow draining has been mentioned to be possibly not secure due to its plastic assembly though it can be solved by attaching it to the connector on the bucket directly.


The Keystone KSTAD70B comes with a full one-year warranty for the 1st year which includes parts and labour. For the subsequent years until the 5th year, the warranty is limited to repairing and replacing of parts in the sealed refrigeration system which include compressor, condenser, evaporator and tubing.

Best Deals for Keystone KSTAD70B

During my research for this review, I did a prize comparison among online websites that carry this dehumidifier. I found out that Amazon consistently offers a lower prize for this dehumidifier.

To enjoy this good deal, click on this link: Best Deals for Keystone KSTAD70B




(Download the Specification Sheet for KSTAD70B here)


User Manual for Whirlpool AP51030K(Download the User manual for KSTAD70B here)



(Published on 5th December 2014)

(Last Updated 3rd March 2015)