Check before you buy. Pump, noise, and warranty aren’t in our sources, so ask the seller.
Our read
Who it suits
Rated 50 pints a day, the CHWA150B is sized for every space in the ENERGY STAR table, wet ones over 2,000 sq ft included. Its running cost is close to the median, so drainage, noise, and price matter more.
Capacity suggested for each case, read Oct 5, 2026. ENERGY STAR adds that it’s better to oversize than undersize.
Running cost
Running cost won’t decide it
The DOE puts a portable’s average life at 11 years. Over that time, this model costs $42 less to run in the United States than the median 45–50 pint model. The thriftiest 45–50 pint model, the Aeocky LEO PRO-RCS50(Y)-N4-3(B)-25, would save $123 over those years.
The EPA doesn’t list the CHWA150B as connected. Of the 156 certified 45–50 pint models, 14 are. In a crawl space you rarely open, a connected one saves the trip.
Ask for the pump lift and the lowest working temperature
Neither figure is in our sources for the CHWA150B. Without a floor drain below it, a pump has to lift the water to a sink. Basements run cool, and below 65°F, ENERGY STAR says frost can form on the coils.
Uses 499 kWh a year, 21 kWh under the median of its class.
Its refrigerant is R-32, flagged as lower GWP.Global warming potential 675.
Of the 156 certified 45–50 pint portables, 19 use less energy, and 1 uses exactly as much.
At 2.01 liters per kWh, it clears the federal minimum for its class by 26%.The DOE sets 1.60 L/kWh for portables rated over 25 and up to 50 pints a day. Every unit made since June 13, 2019, must meet it.
The largest portable certified under the Waykar name. Next down is the JD026CE-150, at 49 pints.That one uses 8 kWh a year more.
On the market since April 2026, newer than 86% of the 45–50 pint models on the list.
Not on the EPA’s Most Efficient list, which names 8 of the 45–50 pint models.
The company that files it also files the Fehom, Kesnos, and Yaufey models with the EPA.
Another brand near this size: the DuraComfort DH50PL, at 50 pints and 508 kWh a year.In the United States, this one costs $2 a year less to run.
Our arithmetic
One full day of drying
Water
6.2gal
49.52 pints
Electricity
11.7kWh
liters ÷ IEF
Cost
$2.13
in the United States
A day of nonstop drying means 49.52 pints of water, about 6.2 gallons, for some 11.7 kWh. At the average home electricity price in the United States, the CHWA150B costs $2.13 to run that day.
The EPA’s yearly estimate, 499 kWh, adds up to about 43 days like that. Each extra day at full output costs another $2.13.
Those 49.52 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 6.2 gallons to get rid of. Check how the CHWA150B drains, since our sources don’t say.