# The Best AlorAir Dehumidifiers

> Two families under one name — one for quietly guarding a crawl space, one for drying out a flood. Here's how to pick the right AlorAir.

Canonical: https://www.enthusiastreview.com/best/best-alorair-dehumidifier/
Last updated: 2026-11-05
Published: 2026-09-02
Category: Brands
Publisher: Enthusiast Review

If you've looked into crawl-space encapsulation or water-damage cleanup, you've probably run into an AlorAir dehumidifier. The brand has become a favorite of encapsulation contractors and restoration crews, largely because it delivers near-commercial performance for a fraction of what legacy pro brands charge.

The catch is that AlorAir sells two very different product families. The **Sentinel** line is built to sit in a crawl space or basement and hold steady humidity for months. The **Storm** line uses Low Grain Refrigerant (LGR) technology to dry out a soaked building fast. Buy the wrong family and you'll either overspend on restoration gear or under-buy for a real flood.

Below we break down the five AlorAir models most homeowners should consider, what owners say about them, and how to read AlorAir's two pint ratings.

## Our top picks

- **Best overall:** AlorAir Sentinel HDi65 — [check price on Amazon](https://www.amazon.com/s?k=AlorAir%20Sentinel%20HDi65%20Dehumidifier&tag=sktiger-20)
- **Best with Wi-Fi:** AlorAir Sentinel HDi65S — [check price on Amazon](https://www.amazon.com/dp/B0B3WXNDRZ?tag=sktiger-20&linkCode=ll1)
- **Best value:** AlorAir Sentinel HD55 — [check price on Amazon](https://www.amazon.com/dp/B08N6C4GPP?tag=sktiger-20&linkCode=ll1)
- **Best for flood restoration:** AlorAir Storm LGR Extreme — [check price on Amazon](https://www.amazon.com/dp/B071HP9PDR?tag=sktiger-20&linkCode=ll1)
- **Best portable restoration unit:** AlorAir Storm LGR 850 — [check price on Amazon](https://www.amazon.com/s?k=AlorAir%20Storm%20LGR%20850%20Dehumidifier&tag=sktiger-20)

For most crawl spaces and basements, the **AlorAir Sentinel HDi65** is the AlorAir to buy: compact, self-draining and built to run unattended down to about 36°F.

## 1. AlorAir Sentinel HDi65 Dehumidifier — Best overall

[Check price on Amazon](https://www.amazon.com/s?k=AlorAir%20Sentinel%20HDi65%20Dehumidifier&tag=sktiger-20)

**Pros**

- Compact body fits low-clearance crawl spaces
- Built-in pump with a 19.6-foot lift
- Auto-defrost to about 36°F
- ENERGY STAR, cETL listed, six-year limited warranty

**Cons**

- No Wi-Fi alerts
- Saturation rating on the box can mislead

**Why we picked it:** The HDi65 is the right default across most of AlorAir's use cases. It's small enough for a crawl space, strong enough for a damp basement, and self-draining enough to leave alone for months.

**Performance:** AlorAir rates it at 55 pints a day under AHAM conditions and 120 at saturation. The pump lifts water 19.6 feet, enough to reach daylight from most basements and crawls without a floor drain. Owner reviews most often praise how long it runs without attention. See how it compares with a pricier contractor favorite in our [AlorAir vs. Aprilaire](https://www.enthusiastreview.com/compare/alorair-vs-aprilaire-dehumidifier/) comparison.

| Spec | Value |
| --- | --- |
| Capacity | 55 pints/day (AHAM); 120 at saturation |
| Drainage | Built-in pump, 19.6 ft lift |
| Low-temp operation | Auto-defrost to ~36°F |
| Warranty | 6-year limited |
| Best for | Crawl space, basement |

## 2. AlorAir Sentinel HDi65S Wi-Fi Dehumidifier — Best with Wi-Fi

[Check price on Amazon](https://www.amazon.com/dp/B0B3WXNDRZ?tag=sktiger-20&linkCode=ll1)

**Pros**

- Same hardware as the HDi65
- App alerts for faults and humidity swings
- Remote setpoint control

**Cons**

- Needs a Wi-Fi signal at the crawl hatch
- Costs a bit more than the HDi65

**Why we picked it:** In a space you rarely visit — a rental crawl space, a vacation home, a server closet — an alert on your phone means a stuck defrost cycle or clogged drain line gets caught in hours, not weeks.

**Performance:** It shares the HDi65's 55-pint AHAM rating, pump and 36°F defrost, adding app control and notifications. The pump still does the draining; Wi-Fi just tells you when something's wrong. Compare connected models across brands in our [Wi-Fi dehumidifier](https://www.enthusiastreview.com/best/best-wifi-dehumidifier/) roundup.

| Spec | Value |
| --- | --- |
| Capacity | 55 pints/day (AHAM) |
| Drainage | Built-in pump |
| Smart control | Wi-Fi app with alerts |
| Best for | Rentals, vacation homes |

## 3. AlorAir Sentinel HD55 Dehumidifier — Best value

[Check price on Amazon](https://www.amazon.com/dp/B08N6C4GPP?tag=sktiger-20&linkCode=ll1)

**Pros**

- Nearly the HDi65's capacity for less
- Same compact footprint and 36°F defrost
- Six-year limited warranty

**Cons**

- Gravity drain only — no pump
- Can't add a built-in pump later

**Why we picked it:** If your crawl or basement has a sump or a low point to drain toward, the HD55 gets you almost the same drying power for less. Just confirm the drain route before you buy.

**Performance:** AlorAir rates it at 53 pints AHAM and 113 at saturation, with the same auto-defrost as the pump models. Water leaves through a gravity hose, so the unit must sit above wherever the hose ends. A Wi-Fi version, the HD55S, adds app monitoring to the same platform.

| Spec | Value |
| --- | --- |
| Capacity | 53 pints/day (AHAM); 113 at saturation |
| Drainage | Gravity hose |
| Low-temp operation | Auto-defrost to ~36°F |
| Warranty | 6-year limited |

## 4. AlorAir Storm LGR Extreme Dehumidifier — Best for flood restoration

[Check price on Amazon](https://www.amazon.com/dp/B071HP9PDR?tag=sktiger-20&linkCode=ll1)

**Pros**

- LGR design keeps drying already-dry air
- Covers up to 2,300 sq ft
- Built-in pump and Wi-Fi
- Under 58 dB for its class

**Cons**

- Overkill for everyday humidity control
- Heavier and louder than a Sentinel

**Why we picked it:** After a burst pipe or flood, you need to pull moisture out of drywall, framing and subfloors quickly. LGR refrigeration keeps extracting water at humidity levels where a standard unit stalls, which is exactly what a dry-out needs.

**Performance:** AlorAir rates it at 85 pints AHAM and 180 at saturation, covering up to 2,300 square feet. Its pump lifts water 14.7 feet through a 19.6-foot hose, and it carries a five-year warranty. It costs a fraction of comparable legacy restoration units. See how it stacks up in our [commercial dehumidifier](https://www.enthusiastreview.com/best/best-commercial-dehumidifier/) and [water damage](https://www.enthusiastreview.com/best/best-dehumidifier-for-water-damage/) guides.

| Spec | Value |
| --- | --- |
| Capacity | 85 pints/day (AHAM); 180 at saturation |
| Type | LGR compressor |
| Coverage | Up to ~2,300 sq ft |
| Drainage | Built-in pump, 14.7 ft lift |
| Warranty | 5 years |

## 5. AlorAir Storm LGR 850 Dehumidifier — Best portable restoration unit

[Check price on Amazon](https://www.amazon.com/s?k=AlorAir%20Storm%20LGR%20850%20Dehumidifier&tag=sktiger-20)

**Pros**

- Same 85-pint AHAM capacity as the Extreme
- Lighter body for moving between jobs
- Works down to 36°F

**Cons**

- Fewer refinements than the Extreme
- Still too much machine for routine use

**Why we picked it:** For a one-time cleanup or a contractor hauling gear between sites, the LGR 850 delivers essentially the Extreme's drying power in a lighter, simpler package.

**Performance:** It's rated at 85 pints AHAM and 180 at saturation, with operation down to 36°F — useful for a cold, unfinished basement after a spring flood. It skips some of the Extreme's extras to keep weight and cost down.

| Spec | Value |
| --- | --- |
| Capacity | 85 pints/day (AHAM); 180 at saturation |
| Type | LGR compressor |
| Low-temp operation | To 36°F |
| Best for | One-time dry-outs, contractors |

## AlorAir dehumidifiers, by the numbers

- **55 vs. 120** — AHAM vs. saturation pints for the same HDi65
- **36°F** — Low-temperature limit of Sentinel auto-defrost
- **6 years** — Standard limited warranty on current Sentinel models

The first number trips up many shoppers. Saturation ratings are measured at 90°F and 90% humidity — flood conditions — while AHAM ratings use 80°F and 60%. Size and compare on AHAM pints.

## How we pick AlorAir dehumidifiers

We don't lab-test. We compare AlorAir's AHAM ratings, ENERGY STAR listings, manuals and warranty terms, then read owner and contractor reviews for recurring issues such as pump failures, defrost problems and sensor drift. We also check the CPSC recall database.

We ranked models on how well they match the two jobs AlorAir targets — steady humidity control and fast restoration drying — then on drainage, cold-weather performance and monitoring.

## What to look for in an AlorAir dehumidifier

- **Sentinel or Storm:** Sentinel for ongoing control in a crawl space or basement; Storm for drying an actively wet building.
- **Pump or gravity:** If you can't route a hose downhill to a drain, choose a pump model. Only the HD55 relies on gravity.
- **Wi-Fi for remote spaces:** App alerts matter most in places you visit less than monthly.
- **AHAM pints:** Compare the smaller number across brands. Our [crawl space dehumidifier](https://www.enthusiastreview.com/best/best-crawl-space-dehumidifier/) guide explains sizing.
- **Where you'll buy:** AlorAir sells mainly online, so register the unit for warranty service as soon as it arrives.

## Other AlorAir models: HD55S, HDi90, SLGR and Storm LGR 1250

- **Sentinel HD55S** — the HD55 with Wi-Fi. A good fit if you can gravity-drain but still want alerts.
- **Sentinel HDi90** — a larger Sentinel with a built-in pump for big basements and large sealed crawls where a 55-pint unit would run constantly.
- **Sentinel SLGR** — brings LGR refrigeration to the Sentinel family for commercial spaces that need deeper drying than a standard Sentinel.
- **Storm LGR 1250** — a bigger Storm model aimed at larger restoration and construction-drying jobs.

For most homes, these are step-ups rather than starting points. Begin with the HDi65 and size up only if the space is unusually large or wet. If you're installing in a crawl space, our [crawl space dehumidifier installation](https://www.enthusiastreview.com/guides/crawl-space-dehumidifier-installation/) guide covers placement, drainage and vapor barriers.

## What AlorAir dehumidifier reviews say

Across owner and contractor reviews, the consistent praise is for long, unattended run times and strong performance in cold crawl spaces. The recurring complaints are about the pump: kinked or poorly routed hoses can trigger shutoffs, and a few owners report pump failures after several seasons. Because AlorAir sells mostly online, some reviewers note that warranty service means shipping or a phone diagnosis rather than a local store visit.

> **Is AlorAir a good brand?:** For crawl spaces, basements and restoration, yes. It offers commercial-style features and a long warranty at prices well below legacy pro brands. The trade-off is limited big-box availability and online-only support.

## The bottom line

The **AlorAir Sentinel HDi65** is the best AlorAir dehumidifier for most crawl spaces and basements. Choose the **HDi65S** for remote alerts, the **HD55** if you can gravity-drain, and the **Storm LGR Extreme** or lighter **Storm LGR 850** if you're drying out a flood. For how AlorAir ranks against other names, see our [best dehumidifier brands](https://www.enthusiastreview.com/best/best-dehumidifier-brands/) roundup.

## Frequently asked questions

### What is the best AlorAir dehumidifier?

For most homes, the Sentinel HDi65: a compact 55-pint (AHAM) unit with a built-in pump and auto-defrost to about 36°F. For flood restoration, the Storm LGR Extreme is AlorAir's top pick.

### What's the difference between the AlorAir Sentinel HD55 and HD55S?

The HD55S adds Wi-Fi app control and alerts to the HD55 platform. Both drain by gravity rather than a built-in pump, so you need a downhill route for the hose.

### What's the difference between AlorAir's Sentinel and Storm lines?

Sentinel models are compact units for ongoing humidity control in crawl spaces and basements. Storm models use LGR refrigeration to dry water-damaged buildings quickly.

### Does the AlorAir Storm LGR Extreme have Wi-Fi?

Yes, the Extreme includes app connectivity along with its built-in pump. The lighter Storm LGR 850 drops some of those extras to cut weight and cost.

### Are AlorAir dehumidifiers good?

For crawl spaces, basements and restoration, they're widely used by contractors and well reviewed by owners. Common complaints center on pump hoses and online-only warranty service.

### Why do AlorAir dehumidifiers list two pint ratings?

The larger saturation number is measured at 90°F and 90% humidity; the smaller AHAM figure at 80°F and 60%. Size on AHAM, since the saturation figure roughly doubles real-world capacity.

### Where can I buy an AlorAir dehumidifier?

Mostly online, through Amazon and AlorAir's own store, plus some farm-supply and specialty retailers. Big-box stores rarely stock it, so register your unit with AlorAir for warranty service after purchase.

## Related guides

- [The Best Crawl Space Dehumidifiers](https://www.enthusiastreview.com/best/best-crawl-space-dehumidifier/)
- [AlorAir vs. Aprilaire Dehumidifiers: Which Crawl-Space Unit Is Worth It?](https://www.enthusiastreview.com/compare/alorair-vs-aprilaire-dehumidifier/)
- [The Best Commercial Dehumidifiers for Restoration and Job Sites](https://www.enthusiastreview.com/best/best-commercial-dehumidifier/)
- [The Best Dehumidifiers for Water Damage and Flood Cleanup](https://www.enthusiastreview.com/best/best-dehumidifier-for-water-damage/)
- [The Best Aprilaire Dehumidifiers: E070, E080, E100 and E130](https://www.enthusiastreview.com/best/best-aprilaire-dehumidifier/)
- [Crawl Space Dehumidifier Installation: A Step-by-Step Guide](https://www.enthusiastreview.com/guides/crawl-space-dehumidifier-installation/)

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*Enthusiast Review researches products against DOE ratings, ENERGY STAR data, manuals, CPSC recalls and owner reviews; it does not run a test lab. Amazon links are affiliate links (tag sktiger-20).*