Review summaries: 155 Pint Commercial Dehumidifier with Pump and Drain, Energy Star

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Effective for Crawlspace Humidity

This 155 pint dehumidifier was purchased to address crawlspace humidity. Humidity levels of 84-86% were reduced to a 40% set point. The unit is well built and easy to install and set up. It works reliably. Cheaper smaller units purchased in the past did not last, so the higher cost is considered worthwhile. An optional remote control was also purchased and allows all on-unit functions to be operated remotely.

Pros
  • + quickly reduces high humidity
  • + well built
  • + easy to install and set up
  • + reliable operation
  • + optional remote controls all functions
Cons
  • − cheaper smaller units did not last
AI-assisted summary of a verified Amazon customer review. · August 27, 2026 · United States Read original on Amazon ↗
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Powerful Dehumidifier That Works Like an Industrial Machine

This dehumidifier performs very well and feels like an industrial-grade machine. It dried a basement in less than a day, reducing humidity from 88% to 55% within hours. The unit appears well built and should last.

Pros
  • + works great
  • + fast humidity reduction
  • + well built
  • + durable
AI-assisted summary of a verified Amazon customer review. · August 22, 2026 · United States Read original on Amazon ↗
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Powerful Dehumidifier for Basements

This dehumidifier is described as the most powerful one used, extracting 10 to 15 gallons of water daily from a basement. It noticeably improves air quality in that space. It is recommended for those serious about eliminating moisture in a house or basement.

Pros
  • + high water extraction rate
  • + noticeable improvement in air quality
  • + powerful performance
AI-assisted summary of a verified Amazon customer review. · August 16, 2026 · United States Read original on Amazon ↗
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Quiet dehumidifier maintains low humidity in crawlspace

This dehumidifier is used in a crawlspace after encapsulation. It runs quietly and easily keeps humidity at 50% or below in a 2000 sq ft crawlspace with heights ranging from 8 ft to 2 ft. After several months of use, performance has been excellent. It is hoped that it will continue to work well for a long time.

Pros
  • + quiet operation
  • + maintains humidity at 50% or below
  • + effective in large crawlspace
AI-assisted summary of a verified Amazon customer review. · July 11, 2026 · United States Read original on Amazon ↗
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Powerful commercial dehumidifier for basements

This commercial-grade dehumidifier quickly reduced basement humidity from 64% to 44% in under four hours and maintains a set level of 51%, even during a heatwave with high outdoor humidity. It is surprisingly quiet and produces strong airflow. The pump works well, though the unit was later raised to use the gravity drain and extend pump life. It is recommended over other dehumidifiers, which are considered a waste of money except for small spaces.

Pros
  • + fast humidity reduction
  • + maintains set humidity level
  • + surprisingly quiet
  • + strong airflow
  • + pump works well
  • + commercial grade
AI-assisted summary of a verified Amazon customer review. · July 7, 2026 · United States Read original on Amazon ↗