One unit, 2 brandsDEM 50EPD
Gasbye DryPrime-50-B = DuraComfort DEM 50EPD · Dehumidifier filed by DuraComfort and 1 other brand
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- DuraComfort
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Gasbye
DOE certified water removal, every brand
49.7pints/day2019 DOE test
IEF 2.01 L/kWh
49.7 pints/day under every nameChoose on price, warranty and what's in stock.
DOE data as of 2026-11-03DOE record
DuraComfort DH50PWB and Gasbye DryPrime-50-B: all filed with DOE under one basic model, DEM 50EPD, certified at 49.7 pints/day (2019 DOE test). DOE data as of 2026-11-03.
Sold as
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DH50PWB, DH50PWM
49.7 pints/day
No Amazon listing matched as of 2026-11-03.
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DryPrime-
50- B, DryPrime- 50- W 49.7 pints/day
Check price on Amazon
The filings
DOE lists 4 individual model numbers under basic model DEM 50EPD, filed under 2 brand names. Every filing lists the same figures: 49.7 pints/day and IEF 2.01.
| Brand | Model numbers | Pints/day | IEF | Listing |
|---|---|---|---|---|
| DuraComfort | DH50PWB, DH50PWM | 49.7 | 2.01 | None matched |
| Gasbye | DryPrime- | 49.7 | 2.01 | Check price on Amazon |
How we know it's one unit
Every brand here filed its model numbers under the same DOE basic model, DEM 50EPD. DOE's definition of a basic model (10 CFR 430.2) covers "all units of a given type of covered product (or class thereof) manufactured by one manufacturer" with "the same primary energy source" and nearly identical "electrical, physical, and functional (or hydraulic) characteristics that affect energy consumption, energy efficiency, water consumption, or water efficiency." So one set of DOE figures covers every name on the list. No brand files DEM 50EPD itself as a model number. It's the code DOE uses to tie their filings together.
Brands may still differ in color, controls, accessories, warranty and support. Full record and every model number: DuraComfort DH50PWB.
How much does the DEM 50EPD cost to run?
49.7 pints/day at an IEF of 2.01 L/kWh takes 11.7 kWh a day running nonstop at DOE's test conditions: about $2.12 a day, or $63.74 for 30 days. Real use cycles on and off with the humidity, so that's the upper figure for a day of nonstop running.
At 18.16¢ per kWh, the US average residential price for August 2026 (EIA Electric Power Monthly, table 5.6.A). Worked out from the certified figures.
Among 296 portable dehumidifiers, 25 to 50 pints/day
Water removal (pints/day)49.7
Higher than 204 of 296.
25.0650 pints/day
Efficiency (IEF, L/kWh)2.01
Higher than 161 of 296. 110 others share 2.01.
1.62.21
Who makes the DEM 50EPD, and is it the same under every brand?
- Who makes the Gasbye DryPrime-50-B?
- DOE's records don't say. The Gasbye DryPrime-50-B is filed under basic model DEM 50EPD along with the DuraComfort DH50PWB. Neither brand files DEM 50EPD itself as a model number, and DOE's database has no manufacturer field.
- Is the Gasbye DryPrime-50-B the same as the DuraComfort DH50PWB?
- Yes, by DOE's records. Both are filed under basic model DEM 50EPD and list the same certified figures: 49.7 pints/day and IEF 2.01.
- Which brand of DEM 50EPD is cheapest to run?
- They tie: every brand files 49.7 pints/day and IEF 2.01, so each costs about $2.12 a day to run nonstop at DOE's test conditions.
Related units, shared brands
More: all units sold under several brands · all dehumidifiers