Argendon Sandidry Pro 35C Review: Energy Star Most Efficient with a Pump
Argendon's Sandidry Pro 35C is ENERGY STAR Most Efficient 2025, with a pump and 19.6 ft hose, for spaces up to 1,000 sq ft.
By Daniel Brooks
Updated October 28, 2026
The Argendon Sandidry Pro 35C Dehumidifier is an ENERGY STAR Most Efficient 2025 dehumidifier with a built-in pump, rated at 35 pints at the AHAM condition and up to 70 pints at saturation for spaces up to 1,000 sq ft. For more models, see our Whole-House & Crawl Space Dehumidifiers page.
Our Verdict
For buyers who care about running costs, the Sandidry Pro 35C is our top Energy Star pick, and the pump makes it easy to install anywhere.
Its upright body is 14 inches tall, so check your crawl space clearance.
Argendon Sandidry Pro 35C Dehumidifier
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Key Specifications
| Feature | Specification |
|---|---|
| Brand | Argendon |
| Model | Sandidry Pro 35C |
| Capacity | 70 pints at saturation, 35 pints at AHAM |
| Coverage | Up to 1,000 sq ft |
| Certification | ENERGY STAR Most Efficient 2025 |
| Drainage | Pump with 19.6 ft hose |
| Extras | Auto restart, safety lock |
| Warranty | 5 years |
Design
The body measures 24.5 x 12.5 x 14 inches and weighs about 40 pounds.
A built-in pump and 19.6 ft hose drain it continuously.
Controls
Auto defrost keeps it running in cold environments, and it restarts after power outages.
A safety lock prevents accidental setting changes.
Placement Tips
In a crawl space, set the unit level on a vapor barrier, blocks or a hanger kit, away from standing water, with clear space around the intake and outlet. Run the drain hose with a steady downhill slope, or route the pump line to a sink, sump or exterior opening.
Seal vents and lay a vapor barrier first. A dehumidifier in a vented crawl space spends its effort drying outdoor air.
Running Costs and Care
Check the filter every month or two during heavy use and rinse or replace it when dirty. Make sure the drain line stays clear and, on pump models, test the pump occasionally.
Set the humidity target around 50% to 55%. The compressor then cycles off once the space is dry, which keeps running costs down.
How It Compares
Against the ALORAIR HS35, the Argendon adds a pump and Most Efficient certification for a little more money.
Against the Argendon Shield 35P, the Sandidry Pro 35C is more efficient and adds a safety lock.
Pros and Cons
| Pros | Cons |
|---|---|
| ENERGY STAR Most Efficient 2025 | Tall for low crawl spaces |
| Built-in pump | Smaller capacity |
| 19.6 ft hose | Shorter warranty than ALORAIR |
| Auto restart | No Wi-Fi |
| Safety lock | Basic display |
Who Should Buy It
| Who Should Buy It? | Who Should Look Elsewhere? |
|---|---|
| Basements | Very low crawl spaces |
| Taller crawl spaces | Large spaces |
| Efficiency-minded buyers | Anyone wanting app control |
| Spaces with no drain | Very wet spaces |
For more options, see our picks for the best Energy Star crawl space dehumidifiers and the best crawl space dehumidifiers under 400.
Final Verdict
The Argendon Sandidry Pro 35C Dehumidifier is an efficient crawl space and basement dehumidifier with a pump. You can check the current price and details for the Argendon Sandidry Pro 35C Dehumidifier.
Frequently Asked Questions
Is it ENERGY STAR?
Yes, ENERGY STAR Most Efficient 2025.
Does it have a pump?
Yes, with a 19.6 ft hose.
What area does it cover?
Up to 1,000 sq ft.
Does it restart after outages?
Yes.
What is the warranty?
5 years.
About the author
Daniel Brooks is a home cooling editor at WikiCooling, covering window, portable, through-the-wall and mini-split air conditioners, fans, and dehumidifiers. He researches cooling capacity, energy efficiency, noise levels, installation requirements, and buyer feedback to help homeowners choose the right unit for their room size, climate, and budget.