ModelPortable
Portable dehumidifier, 25 pints a day
Water removed a day
25pints
24.54 pints/day, DOE 2019 test · EPA
Cost a year in the United States
$51
Pumps water out?
Not published
Ask for the pump lift
How loud?
Not published
Ask for a dB(A) figure
Energy use
281kWh/yr
Refrigerant
R-32
GWP 675, “lower GWP” · EPA
Check before you buy. Pump, noise, and warranty aren’t in our sources, so ask the seller.
Our read
On the ENERGY STAR table, the LDH-H251S-WUS suits a very damp space under 2,000 sq ft. It’s too small for a wet one. Its running cost is close to the median, so drainage, noise, and price matter more.
25 pints a day
| How damp the space is | Under 2,000 sq ft | Over 2,000 sq ft |
|---|---|---|
| DampSmells musty now and then50–75% RH | Fits20–30 pints suggested | Too small30+ pints suggested |
| Very dampDamp spots on walls or floor75–90% RH | Fits25–40 pints suggested | Too small40+ pints suggested |
| WetWalls sweat or water seeps in90–100% RH | Too small30–50 pints suggested | Too small50+ pints suggested |
Capacity suggested for each case, read Oct 5, 2026. ENERGY STAR adds that it’s better to oversize than undersize.
Running cost
A portable lasts 11 years on average, by the DOE’s count. In that time, this model costs $6 less to run in the United States than the median 19–28 pint model. The thriftiest 19–28 pint model, the Knka PD30MA-20, would save $103 over those years.
How long dehumidifiers lastAsk before you buy
Our sources publish no noise level for the LDH-H251S-WUS. If it runs where you sleep or work, ask for a figure in dB(A), with the distance it was measured from.
Quiet dehumidifier guideFrom the data
Our arithmetic
Water
3.1gal
24.54 pints
Electricity
6.2kWh
liters ÷ IEF
Cost
$1.13
in the United States
In 24 hours at full output, the LDH-H251S-WUS pulls about 3.1 gallons of water from the air and uses about 6.2 kWh. That day costs $1.13 in the United States.
About 45 such days make up the EPA’s yearly estimate of 281 kWh. If yours runs at full output more often, every extra day adds $1.13.
Its rating comes from a DOE test at 65°F and 60% humidity. In cooler air at that humidity, the LDH-H251S-WUS pulls out less than 24.54 pints a day.
Those 3.1 gallons need a way out: a hose to a drain, a pump, or a bucket you empty. Our sources don’t say which ones the LDH-H251S-WUS has.
Running cost
281 kWh a year × the home electricity price of each state.
| State | Price | Relative cost | Per year |
|---|---|---|---|
| Louisiana (lowest) | 12.72¢ | $36 | |
| U.S. averageYour state | 18.31¢ | $51 | |
| U.S. average | 18.31¢ | $51 | |
| California | 33.61¢ | $94 | |
| Hawaii (highest) | 48.00¢ | $135 |
Safety
No CPSC recall names this model.Checked Oct 4, 2026.
No CPSC dehumidifier recall names Vesync.
Every number has a source
U.S. EPAOct 15, 2026
Capacity, energy use, refrigerant, filing company, certification.
Record 4682794 · certified Aug 5, 2026U.S. Energy Information AdministrationJuly 2026
Home electricity price in each state.
Electric Power Monthly, Table 5.6.ACode of Federal RegulationsOct 7, 2026
Federal minimum efficiency for each size of dehumidifier.
10 CFR 430.32(v), as of Jan 1, 2025Consumer Product Safety CommissionOct 4, 2026
Recalls of dehumidifiers.
No recall naming this companyNot published by these sources
Found a number that looks wrong?Report it
Full spec sheet
Compare
Certified portables of the same size with a full page, closest in yearly energy use.
Waykar
Capacity
24 pintsCost a year in the United States
$52Pump
Not publishedNoise
Not publishedENERGY STAR® certified
Frigidaire
Capacity
23 pintsCost a year in the United States
$52Pump
Not publishedNoise
Not publishedENERGY STAR® certified
Midea
Capacity
22 pintsCost a year in the United States
$51Pump
Not publishedNoise
Not publishedENERGY STAR® certified
Guides
Each guide compares the certified models of this size for one need.