Bosch Dry 4000 dehumidifier: specs and cost to run

Our read

Who it suits

At 36 pints a day, the Dry 4000 fits a wet space under 2,000 sq ft, or a damp one over. Its yearly energy use sits near the median, so weigh drainage, noise, and price.

By Julien Fourel · How we compare

Updated Oct 16, 2026

36 pints a day

Where that fits on the ENERGY STAR sizing table

How damp the space is	Under 2,000 sq ft	Over 2,000 sq ft
DampSmells musty now and then50–75% RH	Room to spare20–30 pints suggested	Fits30+ 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	Fits30–50 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 middle-of-the-pack power bill

Next to the median 29–44 pint model, this one costs $18 less to run in the United States over 11 years. That’s how long the DOE expects a portable to last. The thriftiest 29–44 pint model, the Deciuu LIBRA-RCS32(Y)-N4-3(B), would save $64 over those years.

How long dehumidifiers last

Wi-Fi app

You’ll check it in person

Like 78 other 29–44 pint models out of 87, the Dry 4000 has no Wi-Fi app on the EPA list. In a basement you rarely visit, plan to check it in person.

Crawl space dehumidifier guide

Ask before you buy

Ask about the pump, and about the cold

Pump and cold are the two blanks for the Dry 4000 in our sources. A pump matters when water can’t run down to a floor drain. Cold matters because below 65°F, ENERGY STAR says frost can form on the coils.

Plan the drain

From the data

Where it stands

Its 365 kWh a year is 9 kWh less than the median for its size.
Its refrigerant is R-32, flagged as lower GWP.Global warming potential 675.
Among the 87 certified 29–44 pint portables, 35 use less energy.
The federal floor for its class is 1.60 liters per kWh. It reaches 2.01, or 26% more.That floor covers portables rated over 25 and up to 50 pints a day, for units made since June 13, 2019.
Bosch’s next size down is the Dry 2000, rated 23 pints.That one uses 89 kWh a year less.
Sold since November 2025. Among 29–44 pint models, 61 of 87 came out earlier.
Not on the EPA’s Most Efficient list, which names 1 of the 29–44 pint models.
The Frigidaire FHDD3534Y1 is the closest size from another brand, rated 36 pints and 379 kWh a year.In the United States, this one costs $2 a year less to run.

Our arithmetic

One full day of drying

Water

4.5gal

35.94 pints

Electricity

8.5kWh

liters ÷ IEF

Cost

$1.55

in the United States

A day of nonstop drying means 35.94 pints of water, about 4.5 gallons, for some 8.5 kWh. At the average home electricity price in the United States, the Dry 4000 costs $1.55 to run that day.

The EPA’s yearly estimate, 365 kWh, adds up to about 43 days like that. Each extra day at full output costs another $1.55.

Those 35.94 pints come from a DOE test at 65°F and 60% humidity. Cooler air at that humidity gives up less water, so expect fewer pints in a cold basement.

Every day at full output leaves 4.5 gallons to get rid of. Check how the Dry 4000 drains, since our sources don’t say.

Plan the drain

Running cost

Cost in your state

Your state

365 kWh a year × the home electricity price of each state.

Prices: EIA, Electric Power Monthly, Table 5.6.A, July 2026. Lowest and highest of the 50 states and DC shown.
State	Price	Per year
Louisiana (lowest)	12.72¢	$46
U.S. average	18.31¢	$67
U.S. average	18.31¢	$67
California	33.61¢	$123
Hawaii (highest)	48.00¢	$175

All 50 states and DC

Safety

Recalls

No CPSC recall names this model.Checked Oct 4, 2026.

No CPSC dehumidifier recall names Bosch Thermotechnology.

Every number has a source

Where the numbers come from

U.S. EPAOct 15, 2026

Capacity, energy use, refrigerant, filing company, certification.

Record 4515094 · certified Nov 14, 2025

U.S. Energy Information AdministrationJuly 2026

Home electricity price in each state.

Electric Power Monthly, Table 5.6.A

Code of Federal RegulationsOct 7, 2026

Federal minimum efficiency for each size of dehumidifier.

10 CFR 430.32(v), as of Jan 1, 2025

Consumer Product Safety CommissionOct 4, 2026

Recalls of dehumidifiers.

No recall naming this company

Not published by these sources

Pump and pump lift
Noise, dB(A)
Bucket size
Lowest working temperature
Dimensions
Warranty

Found a number that looks wrong?Report it

Full spec sheet

All the details

How much water it removes2 of 3 published

Water removed a dayDOE 2019 test (Appendix X1): 35.94 pints EPA
Type: Portable EPA
Room size covered: Not published

Drainage0 of 4 published

Bucket size: Not published
Drain hose connection: Not published
Built-in pump: Not published
Pump lift: Not published

Running cost3 of 3 published

Energy useEPA yearly estimate: 365 kWh/yr EPA
Integrated energy factor (IEF)Liters removed per kWh. Higher is better: 2.01 L/kWh EPA
Cost a year in the United States: $67 EPA × EIA

Noise0 of 1 published

Noise level, dB(A): Not published

Build and warranty2 of 6 published

Refrigerant: R-32, 4.2 oz EPA
Wi-Fi app: No EPA
Lowest working temperature: Not published
Dimensions: Not published
Weight: Not published
Warranty: Not published

Certification and filing4 of 5 published

ENERGY STAR® certified: Nov 14, 2025 EPA
On the market since: Nov 3, 2025 EPA
Filed byCompany that filed the model with the EPA: Bosch Thermotechnology EPA
Sold in: United States, Canada EPA
UPC: Not published

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Tools

Bosch Dry 4000

Who it suits

Where that fits on the ENERGY STAR sizing table

A middle-of-the-pack power bill

You’ll check it in person

Ask about the pump, and about the cold

Where it stands

One full day of drying

Cost in your state

Recalls

Where the numbers come from

All the details

Similar 36-pint models

DH3526K1W

HD3526

Aegis HP110

Guides that cover this model

Search