Vornado
Vornado EVDC300 Energy Smart
A DC motor is the only interesting thing here and it is interesting enough to justify the model. On its Energy Smart setting the EVDC300 draws as little as a single watt, against the twenty to forty a comparable AC evaporative pulls, and it runs the whole winter for the price of a few coffees. Output is 2.3 gallons a day - within one percent of what its 560 sq ft claim actually needs - from a one-gallon tank, which is the catch: ten hours between fills if you run it hard. It is the fill interval, not the capability, that decides whether this or the two-tank EV200 is the right one.
The room-size claim, reconciled
567 sq ft supported · box says 560 sq ft
The 560 sq ft on the box is what the winter load calculation supports for this output — one of 18 units here whose claim lands within 5% of its own published rate.
Holding 560 sq ft takes about 2.27 gal/day, which drains this 1-gallon tank in roughly 11 hr.
What a year costs
one wick; two-pack at $14.99, changed every one to two months in season. Electricity assumes the rated 11 W for 12 hours a day across a 150-day heating season at 16¢ per kilowatt-hour.
Specifications
A claim the maker makes
Vornado says the wick carries an antimicrobial treatment. We quote it rather than repeat it: this site has not tested it and neither has anyone independent.
Maintenance profile
- Top fill
- No — tank comes off and goes to the sink
- Replaceable media
- Wick, replaced through the season
Facts, not a score. Which of these matter depends entirely on whether the unit ends up somewhere you will actually clean it.
Features
- DC motor - as little as 1W on Energy Smart mode
- 2.3 gal/day published output against a 560 sq ft claim
- Touch controls with a digital display
- Precise automatic humidity control
- Low-water indicator
- 5-year guarantee
Pros
- The DC motor is a genuine running-cost difference, not a marketing feature - single-digit watts against 30 for the AC models
- Digital display and touch controls put it ahead of the EV100/EV200 on usability
- Its coverage claim is within one percent of the standard load calculation
- Same five-year guarantee as the rest of the line
Cons
- One gallon feeding 2.3 gallons a day of output is about ten hours - the shortest realistic tank life of any Vornado here
- Costs $20 more than the EV200 while holding a third less water
- Wick habit unchanged from the AC models - the motor got cheaper to run, the consumable did not
- Touch controls are less pleasant to use in the dark than physical buttons
What owners say
Summarised from owner discussions and long-form owner reviews. Nobody here has used this unit.
The DC motor is genuinely interesting and genuinely works: single-digit watts, a real digital display, and a coverage claim that sits within a percent of the physics. Where owner experience diverges from the spec sheet is capacity in practice, and specifically on hard water.
The most detailed owner account in the archive compares it against several other units and rates it the least effective of them, describing a struggle to get a 500 sq ft open living area near 30% and a filter destroyed in roughly a week by hard water. Both of those are consistent with the numbers rather than contradicting them — a one-gallon tank against 2.3 gallons a day of output is a ten-hour machine, so anyone not refilling it twice a day is running it far below its rated output, and a single wick handling that throughput on hard water hardens fast.
Bought for a bedroom-to-medium room with soft water, the energy figures make it attractive. Bought for an open plan on hard water, owners have found it frustrating.
What owners like
- The DC motor is a real running-cost difference rather than a marketing line — it idles at around a watt
- Digital display and touch controls put it ahead of the mechanical models in the line for usability
- No white dust, and the same five-year guarantee as the rest of Vornado's humidifiers
- Its published coverage claim is within a percent of what the load calculation supports
Common complaints
- One owner comparing several units directly rates this the least effective of the lot, reporting it struggling to bring a 500 sq ft living area anywhere near 30%
- Hard water is brutal on it: the same owner reports destroying a filter in about a week, which turns the consumable cost into something serious
- A one-gallon tank feeding 2.3 gallons a day of output is about ten hours — the shortest realistic tank life of any Vornado here
- $20 more than the two-tank EV200 while holding a third less water
Questions owners ask
Why can't it get my room to 30%?
How bad is hard water for it?
Is the DC motor worth the premium?
Vornado EVDC300 Energy Smart, head to head
Looked at alongside it
More from Vornado →
Vornado
Vornado EV200
Two tanks instead of one, two wicks instead of one, and 2.4 gallons a day against a 580 sq ft claim - the closest match between a maker's number and the load calculation anywhere in this catalog, off by about two percent. Refilling means carrying two 0.75-gallon tanks rather than one heavy one, which sounds like a downgrade and is not: most people find two light trips easier than one awkward one, and you can run it on a single tank overnight. Fifteen hours at full output is the honest tank life, and Vornado does not pretend otherwise.
591 sq ft supported · box says 580 sq ft
Vornado
Vornado EV100
Vornado is the only brand in this catalog whose published room size matches the physics. One gallon a day supports about 246 square feet by the standard winter calculation; Vornado prints 260 on the box. That is not a rounding coincidence - the same relationship holds across their whole line, which means somebody there is doing the load calculation instead of the marketing. The EV100 itself is a plain, small, well-built evaporative: one gallon, one wick, automatic humidity control, and a five-year guarantee that is unusually long for the money. It will not humidify an open-plan floor, and Vornado does not claim it will.
246 sq ft supported · box says 260 sq ft
Vornado
Vornado EVDC500 Energy Smart
The EVDC300's larger sibling: same DC motor and single-watt idle, two tanks instead of one, and enough output to matter in a real living room. At 3.5 gallons a day it is the most capable portable Vornado makes, and its 850 sq ft figure again sits within a few percent of the load calculation. Fourteen hours at full output, so still a daily job in a dry house - but two tanks make that a lighter job than one. The question it poses against the Evap40 console is whether you would rather carry water twice a day and keep the floor space, or once a day and give up a corner.
862 sq ft supported · box says 850 sq ft