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Keystone DD7L Junior Desiccant Dehumidifier

A desiccant dehumidifier for use in colder spaces and around the home

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  • Use to prevent condensation, mold, musty smells & damp
  • Happy in cold spaces like garages, RVs and boats
  • A favourite with apartment owners because it is so quiet
  • Can be used to dry laundry
  • A lighter, quieter alternative to a compressor dehumidifier
  • Warms the air as it dries
  • Two year parts and labour warranty

Keystone DD7L Junior Desiccant Dehumidifier reviews

I love this thing

I live on a boat in the Pacific Northwest. It's basically been raining nonstop for days. I just came home in the middle of the night from a dance party, exhausted, to find that... thanks to this lovely dehumidifier the inside of my boat is oh so cozy and dry like always! I empty a bucket of water that it has pulled in the last 10 hours and think about how that would all be moisture inside... eek! I've had this for over a year now and I seriously love it, no issues whatsoever and I imagine I would be damp and miserable and smelly without it right now. I love it so much that I am writing probably my first ever amazon review at 4am because I'm so grateful for it. Works like a charm, the different settings are great. If you need to control moisture in a boat, this is perfection.
JM Reviewed in United States
21/12/2019

Removes a lot of moisture in a short amount of time

I have a very damp basement and I've been using compressor dehumidifiers for years. If I set the humistat to 65 or below they run continually. I'm talking 70 pint units. This smaller unit lowered the humidity in my basement to 50% in a few days. It does run almost non stop, but I it only draws 2.6 AMP on low. My 70 pint and 60 pint compressor units draw 5.5 amps on low. The desiccant units are very quite. The only negatives I would give it is that it uses a heater to dry the desiccant so it will warm up the basement a bit. It also is less energy efficient on high drawing close to 6 AMPs compared to the compressor dehumidifiers negligible Amperage between high and low speed.
Reviewed in United States
21/12/2019

Helps me sleep better

Works well. Very compact. Has different settings for different humidity levels. Even a setting to dry your clothes. The container that holds the water is a bit small though. Have to dump the water often.
Reviewed in United States
21/12/2019

Keystone DD7L Junior Desiccant Dehumidifier

The multi-award winning range of domestic dehumidifiers from British dehumidifier experts Meaco are now available in the USA and Canada in conjunction with Keystone.

Desiccant dehumidifiers are different because they can work in all temperatures with a consistent performance right down to 32°F! Unlike compressor dehumidifiers there is no compressor (!) which means no refrigerant making them greener, lighter and quieter than a compressor dehumidifier.

This Keystone desiccant dehumidifier is great for use in:

  • Unheated spaces.
  • Garages for cars, bikes and tools.
  • RV, Boats and Campers.
  • Bedrooms.
  • Basements.
  • Crawl spaces.
  • And anywhere where a quieter, lighter dehumidifier would be useful.

The Keystone DD7L Junior desiccant dehumidifier features:

  • Variable humidistat at 40, 50 and 60%rh.
  • Laundry Mode.
  • Off Timer.
  • Unique Meaco Control Logic.
  • Very quiet in operation.
  • Adds heat to the space as it dries the air.
  • It is great in an apartment – very quiet, can dry laundry, very light and quiet.
  • Class leading safety technology.


Energy saving and accurate dehumidification combined

The Keystone DD7L Junior provides the best possible solution. When the target relative humidity is reached it runs its fan for 5 minutes to check that all is ok and then it turns itself off to save energy. Thirty minutes later it turns its fan back on and samples the air again for 5 more minutes. If the relative humidity has increased above it’s target it starts dehumidifying again, if the relative humidity is ok it goes back to sleep again for another 30 minutes.

In a well sealed home this will mean that the fan will run for just 10 minutes an hour instead of 60, using just 1/6th of the power of other desiccant dehumidifiers.

The above is the perfect balance between protecting your environment and keeping costs to a minimum.

As a desiccant it doesn’t mind low temperatures which means that it is perfect for looking after caravans/boats/garages/classic cars/RVs/holiday homes and workshops over winter. Boat owners will appreciate the lack of castors so it will not roll around on board.

The above applications usually require continuous drainage so that the tank does not have to be emptied. The DD7L Junior comes with a hose in the box.

If the power fails, when it comes back on the DD7L Junior will just start again in the mode you left it in. Most other dehumidifiers will go into standby and wait for you to return and press a button to turn them on.

Desiccant dehumidifiers do have a higher wattage rating than compressor dehumidifiers but in the winter they extract water faster and are therefore on for less time, especially below 59°F.  Therefore, overall, the total amount of energy used will be less.  Please note that all energy consumed by the dehumidifier will be returned to the room as heat and as this is a winter product that is a good thing and is certainly not a waste of energy consumption.

The DD7L Junior has a Laundry mode to dry your washing faster and to prevent the water from the clothes from doing any damage around the home.

A small point that our customers tell us is very important is that the DD7L Junior allows you to select a quiet fan speed independent of the relative humidity that you might wish to select.  This ensures that the DD7L Junior will stay in quiet mode whenever you want absolute quiet, for example at night.

Finally the DD7L Junior turns off when the internal bucket is full and the bucket itself has a splash proof cover to make sure that not a drop is split as you pour the water away.

All of the above great features are backed by Keystone’s two year parts and labour warranty.

 

Where to buy

FEATURES

EXTRACTION RATE DATA

Room Conditions Maximum water extraction (pints/day) Wattage Decibels
68°F and 60%rh - fan speed one 7.31 321 38
68°F and 60%rh - fan speed two 13.69 617 45
68°F and 60%rh - fan speed three 14.14 626 50
50°F and 60%rh - fan speed one 7.29 321 38
50°F and 60%rh - fan speed two 11.34 620 45
50°F and 60%rh - fan speed three 13.08 626 50

TECHNICAL DATA

Compressor or Desiccant? Desiccant
Humidistat 40/50/60%rh
Meaco Control Logic Yes
Off Timer Yes
Fan Speeds 3
Filter Type Standard Dust Filter
Continous Drainage Yes
Hose in the Box Yes
Tank Size (pints) 4.22
Anti-spill Tank Cover Yes
Power Supply 120V/60Hz
Operating Range 41…99°F and 30% to 90%rh
Nett Dimensions (HWD in ") 19.7 x 13.8 x 7.4
Nett Weight (lbs) 14.93
Gross Dimensions (lbs) 23.03 x 15.94 x 9.92
Gross Weight (lbs) 18.37

Where to buy

You can buy the Keystone DD7L Junior Desiccant Dehumidifier at the following locations:
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British Expertise

Meaco are a British dehumidifier and air treatment company formed in 1991 and we are delighted to now bring our expertise to the North American market.