AlorAir Sentinel HDi65S
#1 in Whole-homeFull review
For crawlspaces or basements without a floor drain where the water has to be pumped out; otherwise the cheaper HD55S does the same job.
Amazon $604.52 AlorAir $566.75$566.75
The AlorAir Sentinel HDi65S is the better dehumidifier overall, rated 3.4 to 3.2. The AlorAir Sentinel HDi65S leads on drainage. The AlorAir Sentinel HD55S costs $80.26 less ($486.49 vs $566.75).
AlorAir Sentinel HD55S
#3 in Whole-homeFull review
For DIYers drying a crawlspace or small basement with a floor drain who want a proven unit for a few hundred dollars.
Amazon $486.49$486.49
Prices were last checked October 22, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the AlorAir Sentinel HDi65S for drainage (built-in pump drains up to a sink or window vs drains downhill through a hose).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every whole-home dehumidifier; a clear win is highlighted. How we rank explains each one.
| Factor weight | AlorAir Sentinel HDi65S | AlorAir Sentinel HD55S |
|---|---|---|
| Overall rating | 3.4/5 | 3.2/5 |
| Value 30% | 87 $15.60 per pint/day | 95 $13.39 per pint/day |
| Efficiency 25% | 18 2.1 L/kWh | 18 2.1 L/kWh |
| Quiet 15% | 29 52 dB (maker rating) | 29 52 dB (maker rating) |
| Drainage 15% | 100 built-in pump drains up to a sink or window | 50 drains downhill through a hose |
| Warranty 10% | 50 2-year warranty | 50 2-year warranty |
| Smart 5% | 0 no app control | 0 no app control |
Specifications
| AlorAir Sentinel HDi65S | AlorAir Sentinel HD55S | |
|---|---|---|
| Performance | ||
| Capacity (2019 DOE) | 36.3 pints/day | 36.3 pints/day |
| Efficiency (IEF) | 2.1 L/kWh | 2.1 L/kWh |
| ENERGY STAR | Yes | Yes |
| Energy use | 379 kWh/year | 379 kWh/year |
| Coverage (maker) | 1,300 sq ft | 1,300 sq ft |
| Lowest operating temperature | 33.8 °F | 33.8 °F |
| Noise | 52 dB | 52 dB |
| Drainage and controls | ||
| Built-in pump | Yes | No |
| Drain hose outlet | Yes | Yes |
| Wi-Fi app | No | No |
| Auto restart after power cut | Yes | Yes |
| Auto defrost | Yes | Yes |
| Build | ||
| Type | Whole-home | Whole-home |
| Refrigerant | R-32 | R-32 |
| Dimensions | 13.3 x 12.2 x 19.2 in | 13.3 x 12.2 x 19.2 in |
| Weight | 44 lb | 44 lb |
| Wheels | No | No |
| Warranty | 2 years | 2 years |
| Sealed-system warranty | 6 years | 6 years |