AlorAir Sentinel HDi100 Whole-House Dehumidifier vs Argendon Sandidry 55C
Specs, prices, editor verdict, and who should buy which, compared side by side.
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AlorAir Sentinel HDi100 Whole-House Dehumidifier (premium, $1,050) vs Argendon Sandidry 55C (mid, $598). Different tools for different jobs (see the per-product details below).
Compared on 8 shared specs · same category (environment).
We have not scored these two head to head, so this page does not name a winner. The Argendon Sandidry 55C starts at $598 and the AlorAir Sentinel HDi100 Whole-House Dehumidifier at $1,050. The per-buyer recommendations below say who each one suits.
Side-by-side specs
| Spec | AlorAir Sentinel HDi100 Whole-House Dehumidifier | Argendon Sandidry 55C |
|---|---|---|
| price | $1,050 | $598 |
| type | Whole-house / crawl-space dehumidifier (with condensate pump) | Crawl space / basement dehumidifier |
| capacity | 100 PPD at AHAM, up to 220 pints/day at saturation | 55 PPD at AHAM (120 pints/day at saturation) |
| coverage | Up to 2,900 sq ft | Up to 1,300 sq ft / 10,500 cu ft |
| certification | cETL listed | ETL safety listed |
| drainage | Integrated condensate pump, continuous drainage | 6.5 ft gravity hose + built-in condensate pump (19.6 ft lift) |
| efficiency | 2.7 L/kWh (microchannel condenser, auto defrost + restart) | 2.3 L/kWh COP, R32 refrigerant, auto defrost + auto restart |
| dimensions | 23.8 x 14.7 x 17.9 in; 88 lb; 60 dBA; 33.8 to 104 F | 17.64 x 11.69 x 11.85 in; 44.53 lb |
| warranty | 6-year limited (first 2 years full coverage) | 5-year limited |
Argendon Sandidry 55C also publishes: airflow, sound, operating range, filter
Who should buy which
Homeowners protecting a large basement, crawl space, or whole-house envelope from moisture, mold, and wood rot who want set-and-forget operation with a built-in pump.
You only need to dry a single room or small crawl space (the lower-cost HDi65 or Helios units are a better fit), or you want true HEPA or carbon air purification rather than moisture control.
Homeowners with a mid-size damp crawl space or basement (1,000 to 1,300 sq ft) who want set-and-forget continuous drainage via the built-in 19.6-ft-lift pump, at about $100 under the comparable AlorAir unit.
Your space is under 1,000 sq ft (the Shield 35P costs $200+ less), you want an ENERGY STAR-listed unit (the AlorAir Helios MP55 carries that mark, this SKU lists ETL only), or you need whole-house ducted coverage.
Go deeper
Frequently asked
Which is better, the AlorAir Sentinel HDi100 Whole-House Dehumidifier or the Argendon Sandidry 55C?
We have not scored these two head to head, so this page does not name a winner. The Argendon Sandidry 55C starts at $598 and the AlorAir Sentinel HDi100 Whole-House Dehumidifier at $1,050. The per-buyer recommendations below say who each one suits.
How much do they cost?
AlorAir Sentinel HDi100 Whole-House Dehumidifier: $1,050. Argendon Sandidry 55C: $598. Prices are verified against the manufacturer; check the live links for current pricing.
Who should buy which one?
AlorAir Sentinel HDi100 Whole-House Dehumidifier: Homeowners protecting a large basement, crawl space, or whole-house envelope from moisture, mold, and wood rot who want set-and-forget operation with a built-in pump. Argendon Sandidry 55C: Homeowners with a mid-size damp crawl space or basement (1,000 to 1,300 sq ft) who want set-and-forget continuous drainage via the built-in 19.6-ft-lift pump, at about $100 under the comparable AlorAir unit.
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