---
product_id: 259467288
title: "113 Pints Crawlspace Dehumidifier for Commercial, Sentinel HD55 | Auto Defrost, High Capacity, 1,200 Sq. Ft., with Drain Hose, for Basement, Commercial, Industrial, 6-Year Limited Warranty"
brand: "alorair"
price: "R28860"
currency: ZAR
in_stock: true
reviews_count: 8
category: "Alorair"
url: https://www.desertcart.co.za/products/259467288-113-pints-crawlspace-dehumidifier-for-commercial-sentinel-hd55-auto-defrost
store_origin: ZA
region: South Africa
---

# 113 PPD max capacity Auto defrost tech Durable metal casing 113 Pints Crawlspace Dehumidifier for Commercial, Sentinel HD55 | Auto Defrost, High Capacity, 1,200 Sq. Ft., with Drain Hose, for Basement, Commercial, Industrial, 6-Year Limited Warranty

**Brand:** alorair
**Price:** R28860
**Availability:** ✅ In Stock

## Summary

> 💼 Elevate your space’s air quality with pro-grade power and zero hassle!

## Quick Answers

- **What is this?** 113 Pints Crawlspace Dehumidifier for Commercial, Sentinel HD55 | Auto Defrost, High Capacity, 1,200 Sq. Ft., with Drain Hose, for Basement, Commercial, Industrial, 6-Year Limited Warranty by alorair
- **How much does it cost?** R28860 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/259467288-113-pints-crawlspace-dehumidifier-for-commercial-sentinel-hd55-auto-defrost)

## Best For

- alorair enthusiasts

## Why This Product

- Trusted alorair brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Rugged metal exterior designed for harsh commercial environments and easy maintenance.
- • **Compact & Portable:** Lightweight design with rugged handle for easy transport between job sites or floors.
- • **Effortless Operation:** Continuous drainage eliminates manual water emptying—set it and forget it.
- • **Smart Frost Prevention:** Advanced auto-defrost system keeps performance optimal in low temps, extending unit lifespan.
- • **Powerful Moisture Control:** Removes up to 113 pints/day at saturation—perfect for crawlspaces up to 1,200 sq.ft.

## Overview

The ALORAIR Sentinel HD55 is a commercial-grade 113-pint dehumidifier engineered for crawlspaces, basements, and industrial spaces up to 1,200 sq.ft. Featuring a durable metal casing, automatic defrost technology, and continuous drainage, it delivers reliable, low-maintenance humidity control. Its compact, portable design and advanced sensor placement ensure efficient, quiet operation with extended durability backed by a 6-year limited warranty.

## Description

desertcart.com - ALORAIR 113 Pints Crawlspace Dehumidifier for Commercial, Sentinel HD55 | Auto Defrost, High Capacity, 1,200 Sq. Ft., with Drain Hose, for Basement, Commercial, Industrial, 6-Year Limited Warranty

Review: Great well designed unit fixes common dehumidifier design errors; Super support staff - In spite of some problems that I initially encountered, I believe that for its operating capacity the Alorair H55 (Blue) Sentinel dehumidifier is one of the best products on the market place today. Why do I think this dehumidifier is so good? To be honest my past experience with the entire dehumidifier manufacturing industry has not been a happy one. In the past 10 years I have bought (and obtained through warranty exchanges) over 8 dehumidifiers. I have a relatively small encapsulated crawl space (1,400 SF) which I kept dehumidified using residential 35 Liter per day units. The units that I bought were manufactured by Frigidaire, Friedrich, and Hense. They are all junk! They are designed to fail within 12 to 24 months. Although one would think with the vast choice with the plethora of various manufactures of residential dehumidifiers that quality would vary; having removed the cover off of these failed units it appears that the functioning components (compressor, condensing, and evaporating coils) are all the same and probably come from the same factory located somewhere in China. Why do they fail within such a short period? Bad design. (1) The evaporator coils operate under high pressure 410 Freon, with thin walled copper tubing (environmental and energy efficiency improvements), packed with aluminum cooling fins for condensing room humidity, all held together with carbon steel plates on the ends of the coil unit. The high pressure Freon environment within the thin copper tubing fails within 24 months due to formicary corrosion caused by the dissimilar metals (aluminum, copper, and carbon steel) in contact in a damp environment setting up a corrosion voltage differential on the evaporator coil. (2) Placement of the humidity sensor directly in contact with the evaporating coil in the upper corner, insures multiple and repeated false starts for the dehumidifier compressor. When the unit shuts down after reaching proper humidity levels, the evaporator coil is still wet, and as it drys out the humidity released will send a false signal that the room humidity is too high and thus trigger the unit to start up. Worse when moisture evaporates, the resulting water vapor is lighter than air and rises and triggers the sensor. Excessive cycling on and off results. Lastly it is impossible to repair the units when they fail. They are intended to be disposal products. When I hauled them off the the landfill (as hazardous waste) it was shocking how many failed dehumidifiers were stacked together at the landfill. I finally decided to quit buying junk and started researching crawl space dehumidifiers. Most crawl space dehumidifiers are overpowering for my needs (100 ~ 200 pints per day). The Alorair HD55 is one of the smallest crawl space dehumidifiers on the market. And it is a quality design. This unit has a coated coil (in which the aluminum fins and copper tubing are coated) and is held together with stainless steel plates all of which protects against premature evaporator coil failure due to formicary corrosion. Secondly the humidifier sensor is separated from the evaporator coil and is located on the lower end of the unit to minimize triggering by evaporating moisture from the evaporator coil. Additionally a remote controlling sensor is available as an option with a 25 foot cable to enable full separation from the senor from the evaporator coil. The unit has a MERV 8 removable filter to keep the coils clean. It is very quiet when operating. The only way for me to tell if the unit in the crawl space is running, I have to put my ear against the floor to hear it as the sound is too faint. Additionally, I highly recommend the hanging unit when installing. The rope system minimizes the conduction of vibration, and it raises the unit to get more height when running the gravity drain pipe. Additionally operating the unit directly below the floor joists is more efficient as humidity rises and can be more effectively removed during operation, than if the unit is located on the crawlspace or basement floor. Another plus is that while the humidity sensor operates to the nearest 5%, the actual humidity setting can be set within 1% intervals. I have a separate hygrometer sensor in the crawlspace which measures humidity within 1% intervals. This unit is able to keep a steady humidity level of 41% with a variation of only 1 % +/- when using the remote controller and keeps a steady 40% with no variation when using the sensor on the unit. None of the other junk units that I used to own could keep a steady humidity level, as they operated with variations of +/- 5% at a 45% setting. Yes I did have some problems as the first unit delivered failed almost immediately It is not clear whether the unit was defective or whether it was damaged in shipment. I suspect that damage in shipment is a common problem. The support staff was very responsive and arranged to get a replacement unit shipped to me in two days. I was also given a return label for me to ship the defective unit back at no cost. Replacement unit is running great. I would highly recommend that you save the shipping box for any future returns. In spite of this I still recommend this unit.
Review: Avoid - I have updated my review to reflect the positive communications I had with Alorair. I have always appreciated the equipment, which I find to be excellent. I initially had some non-technical support issues, but they have been successfully cleared up. During the whole process, my equipment has been running very well. My unit is is my sealed crawlspace and keeps the humidity in the low 50's% range, where I want it. Bottom line- unit is top-notch, with a great warranty.

## Features

- 113 Pint Dehumidifier: AlorAir Sentinel HD55 commercial dehumidifier can remove 113 PPD at saturation, 53 pints per day at AHAM, up to 1,200 sq.ft, lowering the humidity to comfortable levels in a short period. On the other hand, this cETL-listed dehumidifier is made of a metal outer casing that withstands more rugged conditions, ensuring long-term use and easy maintenance. Fit any crawl spaces, basements, warehouses, offices, factories, shops, storage areas
- Super Convenient Usage: This high-quality dehumidifier is adjusted simply to the ideal humidity setting to minimize moisture and reduce odor. The MERV-1 Filter can protect internal components from dust when dehumidifying. The most convenient point is that you are not requested to pour away the water every hour like a typical domestic dehumidifier, there is no tank inside, it drains automatically
- Automatic Defrost: Our advanced auto-defrosting system continuously monitors the ambient temperature using built-in sensors. When the temperature is detected to be low, the unit initiates an automatic defrost cycle to prevent frost buildup and related issues. During this process, the compressor temporarily stops while the fan continues to operate, allowing the frost to thaw. Once the defrost cycle is complete, the dehumidifier resumes normal operation. This feature conserves energy and helps extend the lifespan of the unit
- Same Fit for Crawl Spaces: We designed this professional dehumidifier with the modern consumer in mind, smaller size, compact design, rugged handle, easy and safe to transport from job to job, and even from downstairs to upstairs. All special features make it the best for crawlspace, basement, and commercial applications, auto defrosting system, optional remote control system, strong as the tank, Low-temperature operation, cETL
- 6-Year Limited Warranty & ETL Listed: This AlorAir crawl space dehumidifier is ETL listed for safety, backed by 6-year limited warranty - first 2 years full coverage with professional customer support ready to help whenever you need it
- Kindly Note: To qualify for the unchargeable filters, add both the dehumidifier and the filter to your cart. The filter will not be charged at checkout. Please refer to the product details page for methods.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08N6C4GPP |
| Air Flow Capacity | 120 cfm |
| Best Sellers Rank | #101,062 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #218 in Dehumidifiers |
| Brand | ALORAIR |
| Brand Name | ALORAIR |
| Capacity | 113 pints |
| Color | Blue |
| Customer Reviews | 4.2 out of 5 stars 1,196 Reviews |
| Dehumidification Capacity | 53 pints_per_day |
| Floor Area | 1200 square_feet |
| Included Components | Dehumidifier, User Manual |
| Item Dimensions D x W x H | 19.2"D x 12.2"W x 13.3"H |
| Item Weight | 41.7 pounds |
| Manufacturer | ALORAIR |
| Material | Metal |
| Model Name | HD55 Blue |
| Model Number | HD55 Blue |
| Number of Items | 1 |
| Operation Mode | Continuous |
| Other Special Features of the Product | Automatic Defrost, Portable |
| Recommended Uses For Product | Commercial |
| Special Feature | Automatic Defrost, Portable |
| Tank Volume | 14.12 gallons |
| UPC | 705419654751 |
| Upper Temperature Rating | 104 °F |
| Voltage | 115 volts_of_alternating_current |
| Warranty Description | One (1) year parts and labor. Three (3) years parts and labor on Refrigeration System ONLY (Compressor, Condenser, and evaporator). Five (5) years parts on Refrigeration System ONLY(Compressor, Condenser, and evaporator). Please contact us at any time if you have questions. Phone: 1-888-990-7469, Email: support@alorair.com |
| Wattage | 460 watt-hours |

## Product Details

- **Brand:** ALORAIR
- **Capacity:** 113 pints
- **Color:** Blue
- **Floor Area:** 1200 square_feet
- **Included Components:** Dehumidifier, User Manual
- **Item Weight:** 41.7 pounds
- **Product Dimensions:** 19.2"D x 12.2"W x 13.3"H
- **Recommended Uses For Product:** Commercial
- **Special Feature:** Automatic Defrost, Portable
- **Tank Volume:** 14.12 gallons

## Images

![113 Pints Crawlspace Dehumidifier for Commercial, Sentinel HD55 | Auto Defrost, High Capacity, 1,200 Sq. Ft., with Drain Hose, for Basement, Commercial, Industrial, 6-Year Limited Warranty - Image 1](https://m.media-amazon.com/images/I/712aCt+sUbL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: How many watts does it draw?**
A: The manufacturer says it takes 4 A of current to run this device---okay, so draw this current over 120 V of potential difference (the RMS average for N. American line power), and it checks out at 4*120 = 480 W of power drawn. To run the device continuously for 24h per day, you'd use 480*24 = 11.52 kWh of energy each day (note that the other provided answer of "10kW per day" makes no sense, not because 10 is different from 11.52 (that would be forgivable) but because kWh are a measure of energy and kW are a measure of power---completely different units). Anyway, 11.52 kWh per day works out to an energy use of approximately 30*11.52 = 346 kWh each month---so at my local residential service rate of $0.1765 per kWh , I'd be paying the power company around 0.1765*346 = $61 per month to run this device continuously. That's $731 per year...

I don't know how the company can claim on its photos that this device is "energy efficient"---it lacks EnergyStar certification, or any similar such certification from any bona fide agency, and it costs more than $700 per year to run this thing in North America...

**Q: How much heat does the unit put out?**
A: The "manufacturer" answer makes absolutely no sense. Degrees is not heat, and the number of degrees it might raise the temperature of a room depends on the size of the room, the humidity in the room, the time the devices runs, the airflow in the room... etc.  In short, someone else estimated the power consumption of the unit at 480 watts. I can't swear to that, I did not do the math, but if that is correct you can use that number to determine the energy added to the system in a given period of time. If you want to just get a rough idea, then imagine the heat put out by four 100watt conventional light bulbs (some of that power is actually going to remove the water from the air)... or picture a hair-dryer set on very low (1/3 power).  A fair bit of heat.

**Q: Can it run CO all the time ?**
A: If you mean continuously-  you can leave it plugged in and set at a humidity level of your desire and the unit will turn on and run as it needs to in order to keep the moisture at the level it is set at. So in times of high humidity it will run longer versus dry times of the year.

**Q: Does it automatically stop when water is full so i can take it out and drain it outside?**
A: There is a hose  attached and it drains continuously. All you need to do is to place the house in the drain.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great well designed unit fixes common dehumidifier design errors; Super support staff
*by R***D on May 21, 2021*

In spite of some problems that I initially encountered, I believe that for its operating capacity the Alorair H55 (Blue) Sentinel dehumidifier is one of the best products on the market place today. Why do I think this dehumidifier is so good? To be honest my past experience with the entire dehumidifier manufacturing industry has not been a happy one. In the past 10 years I have bought (and obtained through warranty exchanges) over 8 dehumidifiers. I have a relatively small encapsulated crawl space (1,400 SF) which I kept dehumidified using residential 35 Liter per day units. The units that I bought were manufactured by Frigidaire, Friedrich, and Hense. They are all junk! They are designed to fail within 12 to 24 months. Although one would think with the vast choice with the plethora of various manufactures of residential dehumidifiers that quality would vary; having removed the cover off of these failed units it appears that the functioning components (compressor, condensing, and evaporating coils) are all the same and probably come from the same factory located somewhere in China. Why do they fail within such a short period? Bad design. (1) The evaporator coils operate under high pressure 410 Freon, with thin walled copper tubing (environmental and energy efficiency improvements), packed with aluminum cooling fins for condensing room humidity, all held together with carbon steel plates on the ends of the coil unit. The high pressure Freon environment within the thin copper tubing fails within 24 months due to formicary corrosion caused by the dissimilar metals (aluminum, copper, and carbon steel) in contact in a damp environment setting up a corrosion voltage differential on the evaporator coil. (2) Placement of the humidity sensor directly in contact with the evaporating coil in the upper corner, insures multiple and repeated false starts for the dehumidifier compressor. When the unit shuts down after reaching proper humidity levels, the evaporator coil is still wet, and as it drys out the humidity released will send a false signal that the room humidity is too high and thus trigger the unit to start up. Worse when moisture evaporates, the resulting water vapor is lighter than air and rises and triggers the sensor. Excessive cycling on and off results. Lastly it is impossible to repair the units when they fail. They are intended to be disposal products. When I hauled them off the the landfill (as hazardous waste) it was shocking how many failed dehumidifiers were stacked together at the landfill. I finally decided to quit buying junk and started researching crawl space dehumidifiers. Most crawl space dehumidifiers are overpowering for my needs (100 ~ 200 pints per day). The Alorair HD55 is one of the smallest crawl space dehumidifiers on the market. And it is a quality design. This unit has a coated coil (in which the aluminum fins and copper tubing are coated) and is held together with stainless steel plates all of which protects against premature evaporator coil failure due to formicary corrosion. Secondly the humidifier sensor is separated from the evaporator coil and is located on the lower end of the unit to minimize triggering by evaporating moisture from the evaporator coil. Additionally a remote controlling sensor is available as an option with a 25 foot cable to enable full separation from the senor from the evaporator coil. The unit has a MERV 8 removable filter to keep the coils clean. It is very quiet when operating. The only way for me to tell if the unit in the crawl space is running, I have to put my ear against the floor to hear it as the sound is too faint. Additionally, I highly recommend the hanging unit when installing. The rope system minimizes the conduction of vibration, and it raises the unit to get more height when running the gravity drain pipe. Additionally operating the unit directly below the floor joists is more efficient as humidity rises and can be more effectively removed during operation, than if the unit is located on the crawlspace or basement floor. Another plus is that while the humidity sensor operates to the nearest 5%, the actual humidity setting can be set within 1% intervals. I have a separate hygrometer sensor in the crawlspace which measures humidity within 1% intervals. This unit is able to keep a steady humidity level of 41% with a variation of only 1 % +/- when using the remote controller and keeps a steady 40% with no variation when using the sensor on the unit. None of the other junk units that I used to own could keep a steady humidity level, as they operated with variations of +/- 5% at a 45% setting. Yes I did have some problems as the first unit delivered failed almost immediately It is not clear whether the unit was defective or whether it was damaged in shipment. I suspect that damage in shipment is a common problem. The support staff was very responsive and arranged to get a replacement unit shipped to me in two days. I was also given a return label for me to ship the defective unit back at no cost. Replacement unit is running great. I would highly recommend that you save the shipping box for any future returns. In spite of this I still recommend this unit.

### ⭐⭐⭐⭐⭐ Avoid
*by K***L on June 14, 2026*

I have updated my review to reflect the positive communications I had with Alorair. I have always appreciated the equipment, which I find to be excellent. I initially had some non-technical support issues, but they have been successfully cleared up. During the whole process, my equipment has been running very well. My unit is is my sealed crawlspace and keeps the humidity in the low 50's% range, where I want it. Bottom line- unit is top-notch, with a great warranty.

### ⭐⭐⭐⭐⭐ Is a Premium Dehumidifier Worth the Cost?
*by J***Y on July 30, 2026*

I have updated my review to 5 stars after working with Alorair’s customers service and getting my unit replaced under warranty. My original 1 star review was as follows: After going through lower cost dehumidifiers every one to two years, I decided to spend more and get the Alorair Sentinal HD55 which seemed like a more robust unit. The unit seems very well built. Now after two summers of use, the refrigeration system has a leak, and it is icing up and not working anymore. The company has been very responsive and offered to repair it for free, with me paying the shipping there and back (roughly $135 x 2 = $270), or get a different unit, probably a repaired one, for $350. Two years ago, I bought it for $467 which figures out to $233.50/year. Instead, I bought a small Media for $211. It has been working great, is extremely quiet, and uses approximately half the electricity of the HD55. It is astounding to me that nobody seems to be able to make a dehumidifier that will last more than 1-3 years.

## Frequently Bought Together

- ALORAIR Commercial Dehumidifier 113 Pint, with drain Hose for Crawl Spaces, Basements, Industry Water Damage Unit, Compact, Portable, Auto Defrost, Memory Starting, 5 Years Warranty, Sentinel HD55
- ALORAIR MERV-8 Filter Replacement Set for Basement Dehumidifiers Sentinel HD55,Sentinel HDi65(4 Pack)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.co.za/products/259467288-113-pints-crawlspace-dehumidifier-for-commercial-sentinel-hd55-auto-defrost](https://www.desertcart.co.za/products/259467288-113-pints-crawlspace-dehumidifier-for-commercial-sentinel-hd55-auto-defrost)

---

*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-08-31*