SPT SD-014V Desiccant Dehumidifier
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- Desiccant wheel technology: Eco-Friendly, Compressor-less dehumidifier, 4 speed settings, including smart AUTO mode
- 4 speed settings, including smart AUTO mode, Humidity settings: 40-Percent, 50-Percent, 60-Percent and continuous
- Off-Timer, 1 to 7 hours, Multi-safety auto shut-off protections: tip-over, full bucket and overheat
- Washable PP pre-filter, VOC (volatile organic compounds) filter with filter replacement reminder
- Handle and casters for easy moving, Continuous drain connection (6.5 ft. hose included) ETL
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SPT Desiccant Dehumidifier is Designed to remove excess moisture from your home quietly and efficiently. A necessity for those suffering from dust mite, allergies or simply for those who wants to keep their indoor humidity at a comfortable level. Air that is too damp can cause itchy skin and nasal passages, condensation on windows, water damage to materials, mold growth and rotting of wood materials in your home. SPT dehumidifiers remove moisture from the musty air so you can enjoy year-round comfort in your home or office. This model uses a special humidity-absorbing material known as a "desiccant", which is exposed to the air to absorb humidity. The material is then heated to remove the moisture and thus recharged. This compressor-less unit is super quiet and is especially suited for low temperature regions.
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|Item Dimensions||11.3 x 13.5 x 21.9 in||11.4 x 6.9 x 19.1 in||15 x 11.6 x 24.4 in||2.5 x 8 x 5.5 in||16.4 x 7.3 x 21.7 in||11.4 x 6.9 x 18.7 in|
|Size||—||15-pint||70 pint||1 PACK||21-pint||15-pint|
Top customer reviews
* Quiet ... really quiet. Just the sound of a small fan and periodic gurgling as water drains.
* Not a heat generator. Unlike most other dehumidifiers it doesn't act like a heating unit (unless you want it to). The room remains comfortable.
* Not a power house. It extracts water from the room but its not what you want for a large or particularly humid area.
* The humidity level sensor seems to keep the room more humid than my hygrometer would suggest. This seems to be a problem with all my dehumidifiers so not a big ding but would be nice to have a dehumidifier with an accurate humidity sensor.
We bought this unit to dehumidify a 20' x 20', masonry workshop. Humidity is always a problem in the workshop. During the summer we run a compressor-type dehumidifier, but the workshop is only heated enough to keep pipes from freezing in the winter. At those temperatures, we can't run our compressor-type dehumidifier, and humidity runs in excess of 70%. We saw this device as being useful for putting just a tiny bit of heat in the building (for the water pipes), while staying on top of the humidity problem. And for this purpose it seems to be working very well. I pulled out a gallon of water and dropped the RH by about 10% after one day of running on medium speed (45 degF, 70% RH initially). I'm satisfied with that. We would have used the energy anyway with an electric space heater, but the dehumidifier gives us an additional return in the form of much-needed dehumidification. Win-win.
That said, it's not the most efficient device in the world. If you can run a dehumidifier in higher temperature air and don't mind the noise of a compressor-type humidifier, you can pull out MUCH more significant quantities of water in shorter time with the same electricity. How efficient is this dehumidifier? These are my test results:
Low speed, 55% RH, 50 degF: Pulled out 33 ml of water in 1 hr with 0.28 kWh of electricity, for a dehumidification cost of 8.48 kWh/L ($1.18 per liter of water where we live -- electricity priced at 14 cents per kWh).
Medium speed, 55% RH, 50 degF: Pulled out 85 ml of water in 1 hr with 0.34 kWh of electricity, for a dehumidification cost of 4.00 kWh/L ($0.48 per liter of water). This was the most efficient setting.
High speed, 55% RH, 49 degF: Pulled out 120 ml of water in 1 hr with 0.61 kWh of electricity, for a dehumidification cost of 5.13 kWh/L ($0.72 per liter of water).
And then in the overnight test in the workshop, medium speed, 45 degF, 70% RH, roughly a day (maybe more) of run-time, 10.65 kWh to extract 3.5 L of water, for a total efficiency of 3.04 kWh/L ($0.42 per liter of water). RH dropped by perhaps 10%, according to the humidity indicator card I keep hanging from the ceiling fan.
I can see how this dehumidifier would also be very useful inside a living space. At even the high speed setting, the unit is far, far quieter than a compressor dehumidifier. It is quieter than my computer fans on medium speed, the most efficient setting. I frankly wouldn't bother with low speed, but if you do, it's impressively whisper-quiet on that setting.
I can also see this dehumidifier used in a boat during the winter. It would throw off just enough heat to keep our 31' sailboat from icing up, and it would keep the cabin dry. The drain tube could be run to the bilge, where the condensate would be ejected by the bilge pumps. We might try that in the future.
For other uses (e.g. basement), you're better off with a compressor-type dehumidifier if the temperature is high enough to run one.
The humidistat seems rather inaccurate, as the unit would not run in the 50% RH mode when the humidity was around 70%. In the 40% RH mode, it would begin to run. I just switched to manual.
Our unit makes a short, tiny squeak whenever the desiccant wheel makes a complete revolution (once in approx. 2 min). It's not annoying, but I do notice it. You can also smell the heating element at times. It's not an obnoxious smell, but it's there.
The unit is attractive and well made. I love the innovative design, and part of the reason I purchased it was to reverse engineer it. It is a very affordable example of an adsorption dehumidifier, and it is unique in this market. I hope to design a whole-house adsorption dehumidifier from silica gel (cheapest = silica gel cat litter), using convective airflow from a solar chimney to dehumidify the media. By far the largest power draw from the SPT dehumidifier is the heating element, and a solar chimney design would eliminate that energy cost. But for now, for what we're doing, this SPT dehumidifier is a very clever little unit that fills a niche in our humidity control strategy. Oh, and for all it's worth, I didn't give it 5 stars only because of the inefficiency of the technology. If energy were free, and if there were no such thing as global warming, heck, I'd give it 5 stars.
Quieter by far. Puts out a little funny smell at times. But I definitely prefer it to the compressor kind. It's expensive though but effective, quiet on low and puts out a little less heat.
Most recent customer reviews
Cons: Smell (goes away after use), less efficient relative to condenser dehumidifier, Internal leak after a few months of use.