HIGH
OFF
POWER
NORMAL
MOISTURE
OUTPUT
HIGH
DESIRED
HUMIDITY
HUMIDITY
LEVEL
LOW
O W N E R ’ S M A N U A L
4 Gallon (15.1 Litre) Output Per Day
NATURAL COOL
™
MOISTURE HUMIDIFIER
Model DH-831
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I N T R O D U C T I O N
Thank you for purchasing the
H O W D O E S I T W O R K ?
®
DURACRAFT MODEL DH-831
Dry air is pulled through the Natural
™
Natural Cool Moisture HUMIDIFIER
™
Cool Moisture system and a quiet fan
with removable water tank.
disperses invisible, moisture-balanced air.
Unwanted minerals and bacteria from the
water are trapped inside the Natural
Before using your humidifier, we
would like to explain the benefits of
maintaining your home or office at
the proper humidity level.
™
Cool Moisture filter. There is no “mist”
or excessive condensation emitted.
®
Duracraft's exclusive Automatic Moisture
H E A LT H
™
Balance System increases moisture out-
put when the air is dry and lowers the
moisture output when the humidity level is
high. This automatically adjusts the output
for maximum comfort and helps prevent
condensation.
Your body needs moisture to stay healthy
and comfortable. Dry air can be damag-
®
ing and irritating. The Duracraft Natural
™
Cool Moisture Humidifier can help
relieve:
• Dry, itchy skin and chapped lips.
• Cold symptoms and congestion.
• Dry, scratchy throat and coughs.
For serious medical conditions, always
consult your physician prior to use.
E N V I R O N M E N T
Maintaining the proper moisture level in
®
your home or office with your Duracraft
™
Natural Moisture Humidifier will also:
• Replace needed moisture in furniture.
• Keep indoor plants moist and healthy.
• Eliminate cracking and dryness in
wood furniture and fixtures.
• Minimize static electricity.
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S E T U P
• Select a firm, level, flat
location — at least six
inches (15 cm) from any
wall for proper air flow
and convenient to an elec-
trical outlet.
• Remove the Upper Motor • Turn the Water Tank
Housing from the Reservoir
Base, being careful not to
let the power cord drop
into the base (Fig. 2).
upside-down so that
the fill cap is facing up;
unscrew the fill cap by
turning it counter-clock-
wise.
FIG. 2
• Place the humidifier on
a water-resistant surface,
as water can damage fur-
niture and some flooring.
• Fill the tank with
HIGH
OFF
COOL tap water (Fig. 4).
Distilled water is not nec-
essary as the water is fil-
tered by the Natural Cool
POWER
NORMAL
MOISTURE
OUTPUT
HIGH
DESIRED
HUMIDITY
HUMIDITY
LEVEL
LOW
®
Duracraft will not accept
™
responsibility for property
damage caused by water
spillage.
Moisture filter. DO NOT
• Remove the Natural
Cool Moisture filter from
USE HOT WATER.
™
FIG. 4
its frame in the Reservoir
Base (Fig. 3). Run it under
cold water; this will help
reduce residue build-up.
Turn the filter upside down
before repositioning it in
its frame. Replace in the
humidifier. To help extend
the life of your filter,
F I L L I N G
We recommend that the
humidifier be disinfected
prior to first use. Please
see CLEANING instruc-
tions.
• Replace the fill
cap by turning it
clockwise. DO NOT
OVER TIGHTEN.
repeat this step every time
you fill your humidifier.
• Remove the Water Tank
by grasping handle and
pulling straight up. Set
aside (Fig. 1).
FIG. 3
NOTE: WHEN CARRYING
THE FILLED WATER TANK,
PLEASE USE THE HANDLE
AND PLACE YOUR OTHER
HAND UNDER THE
TANK FOR ADDITIONAL
SUPPORT.
FIG. 1
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F I L L I N G c o n t .
• Position the Upper
Motor Housing back
into the Reservoir Base.
• Adjust the round air
outlet grill on the top of
the Upper Motor Housing
(above the fan) to direct
moisture in the desired
direction. DO NOT aim
the moisture flow toward
furniture or walls that
could be damaged by
excessive moisture.
• DO NOT FORCE THE
POLARIZED PLUG INTO
THE OUTLET; it will only
fit one way.
• Position the Water Tank
back into the humidifier
and secure into place.
CAUTION: DO NOT PLUG
IN THE HUMIDIFIER WITH
WET HANDS AS AN
ELECTRIC SHOCK COULD
OCCUR.
• Some water will empty
into the Reservoir Base
when the filled Water Tank
is properly positioned.
• Slide the Humidity
Level (Humidistat) knob
to HIGH.
• When a comfortable
humidity level is reached,
lower the Humidity Level
(Humidistat) setting slowly
until the fan stops. The
DESIRED HUMIDITY light
will then illuminate, indi-
cating that the desired
humidity setting has been
reached. The Humidistat
will automatically restart
the fan each time the
• Once the filled tank has
been positioned, do not
attempt to move the
humidifier. If it has to be
moved, unplug the humidi-
fier and remove the Water
Tank first.
• Set the moisture output
control to the desired
position:
– HIGH for fast humidify-
ing or NORMAL for qui-
eter operation.
NOTE: DO NOT POUR
WATER INTO THE GRILL
ON THE TOP OF THE
UPPER MOTOR HOUS-
ING. DOING SO MAY
DAMAGE THE HUMIDIFIER
OR CAUSE PERSONAL
INJURY.
NOTE: IF THE HUMIDIFIER
FAN WILL NOT START OR
RESTART WHEN YOU
SELECT A FAN SPEED, THE
HUMIDISTAT MAY BE SET
TOO LOW. MOVING THE
HUMIDITY LEVEL KNOB
TO A HIGHER SETTING
SHOULD START THE FAN.
humidity level falls
below this setting. This
"ON/OFF" cycle will con-
tinue periodically while
the humidifier is in use.
• Lower the Humidity
Level setting if condensa-
tion forms on walls or
windows.
O P E R A T I O N
• The length of time your
humidifier runs will vary
depending on the quality
of construction and
insulation of your room
or house, as well as the
fan speed.
• ALWAYS be sure to
• With the power switch
in the OFF position, plug
the filled humidifier into a
polarized 120V outlet.
discard any unused water
in the base each time you
refill the Water Tank or fin-
ish using the humidifier.
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C L E A N I N G
™
We recommend that you
clean the humidifier once
a week, or more often if
you:
• First, turn off and
• With DuraRinse or
unplug the humidifier.
vinegar still in the unit,
clean all interior surfaces
of the base with a soft
brush or cloth to remove
scale.
• Remove the Water Tank
by grasping the handle
and pulling straight up.
• have hard water,
• notice a build-up
• Lift the Upper Motor
Housing from the
Reservoir Base.
• Rinse Reservoir Base
thoroughly with clean,
warm water to remove
scale and cleaning
solution.
of impurities, or
• detect unpleasant odors.
• Remove the Natural
™
Using DuraSept
™
Cool Moisture Filter
Humidifier Bacteriostatic
Treatment (#AC-802) will
help control the growth
of bacteria, algae, and
odors and help extend
the life of the Natural
from its frame (Fig. 5).
S T E P T W O :
W E E K LY
D I S I N F E C T I N G
( WAT E R TA N K
A N D R E S E R V O I R
B A S E )
FIG. 5
™
Cool Moisture Filter.
• Be sure the Water
NOTE: THE USE OF
Tank is empty. Fill with
OTHER WATER TREATMENT
PRODUCTS MAY CAUSE
DETERIORATION OF THE
FILTER OR DAMAGE THE
HUMIDIFIER, THEREBY
HINDERING THE HUMIDI-
FIER'S EFFECTIVENESS.
™
water and DuraRinse
Humidifier Cleaner
• Discard any residual
water from the base.
(#AC-816), following
bottle instructions, or 1
teaspoon chlorine bleach
in 1 gallon (4 litres) water.
Let solution stay 20 min-
utes, swishing every few
minutes to wet all sur-
faces.
S T E P O N E :
W E E K LY
S C A L E R E M O VA L
( R E S E R V O I R
B A S E )
DO NOT USE SOAP,
DETERGENTS, OR
ABRASIVE CLEANSERS.
• Fill the Reservoir
Base with DuraRinse
™
Cleaning involves two
steps: SCALE REMOVAL
and DISINFECTING.
Be sure to perform these
in the proper order to
avoid harmful chemical
interactions.
• Empty tank after 20
minutes. Rinse with water
until bleach/solution smell
is gone.
Humidifier Cleaner
(#AC-816), following
bottle instructions, or
one 8-oz. cup (250 ml) of
undiluted white vinegar.
Let solution stay for 20
minutes.
• Repeat for the
Reservoir Base.
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C L E A N I N G c o n t .
A F T E R
D I S I N F E C T I N G . . .
• Clean all surfaces of the
Upper Motor Housing
with a dry, soft cloth. DO
NOT USE WATER TO
CLEAN THE UPPER
• Pack the unit in its
NOTE: THE FAN MOTOR
OF THIS HUMIDIFIER
AND THE NATURAL COOL
MOISTURE™ FILTER ARE
DESIGNED TO FUNCTION
EFFICIENTLY AS A SET.
USING ANY OTHER
original carton and store
in a cool, dry location.
• Remember to install a
new filter and clean the
humidifier at the start of
the next humidification
season.
MOTOR HOUSING. THIS
MAY DAMAGE THE
HUMIDIFIER OR CAUSE
ELECTRIC SHOCK.
FILTER COULD DAMAGE
THE HUMIDIFIER'S
MOTOR OR IMPAIR
ITS PERFORMANCE.
• If you have hard water
you may need to clean
or change the filter more
often. If the filter is dirty,
rinse it under cold tap
water and turn the filter
upside down before
E N D - O F - S E A S O N
C A R E A N D
S T O R A G E
• Follow weekly CLEAN-
ING instructions at end of
humidification season or
when humidifier will not
be used for at least one
week or more.
repositioning it in the
frame. Do not squeeze
or wring out pad. Do not
soak pad in bleach or
vinegar. When the filter
turns dark brown, replace
™
• Remove and throw
away filter; do not store
with a used filter (SAVE
THE FILTER FRAME FOR
USE WITH YOUR REPLACE-
MENT FILTER PAD).
it. Using DuraSept
Humidifier Bacteriostatic
Treatment will help extend
the life of the filter. For
best and proven results,
®
always use Duracraft
™
Natural Cool Moisture
• Let the humidifier dry
completely before storing.
Do not store with water
inside the Reservoir Base
or Water Tank.
Filters available from your
local store or from
Duracraft.
• Reposition the Filter
Frame, Upper Motor
Housing, and Water Tank.
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E L E C T R I C A L R AT I N G S
This product is rated 0.45
amps at 120V, 60 Hz.
Weekends
AND COULD CAUSE DAM-
AGE OR PERSONAL
INJURY. IF THE PROBLEM
STILL PERSISTS, PLEASE
CALL:
8:30 AM – 5:00 PM (EST)
Mail questions or
comments to:
DURACRAFT CORP.
Customer Service Dept.
250 Turnpike Road
Southborough, MA 01772
U.S.A.
NOTE: IF YOU EXPERI-
ENCE A PROBLEM WITH
YOUR HUMIDIFIER'S
UPPER MOTOR HOUSING,
PLEASE SEE THE WARRAN-
TY FOR INSTRUCTIONS.
PLEASE DO NOT ATTEMPT
TO OPEN OR REPAIR THE
UPPER MOTOR HOUSING
YOURSELF. DOING SO WILL
VOID THE WARRANTY
DURACRAFT CORP.
CUSTOMER SERVICE
DEPARTMENT
TOLL FREE: 1-800-554-4558
Please be sure to
specify model number.
Business Hours:
Monday – Friday
8:00 AM – 10:00 PM (EST)
C A R E P R O D U C T S
deposits in the reservoir
and on the Natural Cool
Model AC-802 —
Model AC-816 —
™
™
DuraSept Humidifier
DuraRinse Humidifier
™
Moisture Filter so they
Bacteriostatic Treatment
helps control the growth
of bacteria and algae in
your humidifier and helps
Cleaner helps soften lime
scale and mineral deposits
when cleaning the Natural
can be easily rinsed
away.
™
Cool Moisture Humidifier.
Model AC-850 —
™
prevent unpleasant mildew DuraRinse should be
Humidifier Complete
Care Kit. A complete care
kit for your Natural Cool
odors. It can also extend
the life of the Natural
used whenever you begin
to notice discoloration in
the humidifier's reservoir
or water tank.
™
Cool Moisture Filter. For
™
Moisture Humidifier,
™
best results, DuraSept
including one 32-oz.
(946 ml) bottle of each
of the above products:
should be added every
time you fill your
humidifier.
Model AC-817 —
™
DuraFree Humidifier
™
™
DuraSept , DuraRinse
Water Softener softens
™
and DuraFree .
hard water impurity
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R E P L A C E M E N T PA R T S A N D C A R E P R O D U C T S
Item
Model No.
Price U.S. Price Can.
™
Natural Cool Moisture Replacement Filter
AC-818
$ 14.99
$ 5.00
$20.25
$ 6.75
DuraFree™ Humidifier Water Softener (32 oz./946ml) AC-817
™
DuraRinse Humidifier Cleaner (32 oz./946ml)
AC-816
$ 5.00
$ 6.75
™
DuraSept Humidifier Bacteriostatic
Treatment (32 oz./946ml)
Humidifier Complete Care Kit
Hygrometer (measures room humidity level)
Water Tank
AC-802
AC-850
AC-900
DH-831-1
$ 5.00
$14.00
$14.99
$15.99
$ 6.75
$18.50
$20.25
$21.50
To order replacement parts or care products, complete and mail the enclosed Order
Form. Be sure to include a check or money order payable to Duracraft Corporation
or call the Duracraft Customer Service Department on our toll-free number:
1-800-554-4558. VISA, MASTERCARD or DISCOVER are accepted.
The above prices do not include shipping charges or sales tax where applicable.
Upper Motor
Air Outlet Grill
Housing
HIGH
OFF
POWER
NORMAL
MOISTURE
OUTPUT
HIGH
DESIRED
HUMIDITY
HUMIDITY
LEVEL
Water Tank
LOW
Natural Cool
™
Moisture Filter
Filter Frame
Reservoir
Base
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O R D E R F O R M F O R M O D E L D H - 8 3 1
R E P L A C E M E N T PA R T S A N D C A R E P R O D U C T S
If your local dealer is out of stock, Duracraft replacement parts and care products may
be ordered directly. Fill out the form and mail it along with a check or money order (no
cash, please) to Duracraft Corp. at the address shown below. Please allow four weeks
for delivery. Massachusetts residents add 5% Sales Tax. Please add 7% G.S.T. plus
applicable provincal taxes.
Item
Item No. Quan. Price U.S. Price Can. Total
Natural Cool Moisture™
Replacement Filter
AC-818
AC-817
AC-816
$ 14.99
$ 5.00
$ 5.00
$20.00
$6.75
$6.75
™
DuraFree Humidifier
Water Softener (32 oz./946 ml)
™
DuraRinse Humidifier Cleaner
(32 oz./946 ml)
™
DuraSept Humidifier
Bacteriostatic Treatment (32 oz./946 ml) AC-802
$ 5.00
$14.00
$6.75
Humidifier Complete Care Kit
AC-850
$18.50
Hygrometer (measures
room humidity)
AC-900
$14.99
$15.99
$20.00
$21.50
Water Tank
DH-831-1
Parts and accessories subject to availability.
Prices may change without notice.
SUBTOTAL
7% G.S.T. & applicable provincal taxes
MA Residents add 5% Sales Tax
Shipping and Handling
❏ CHECK OR MONEY ORDER
ENCLOSED. NO COD’S ACCEPTED.
$ 4.50 U.S.
$ 6.00 Can.
SEND TO:
TOTAL ENCLOSED
Name
Duracraft Corporation.
Customer Service Department
250 Turnpike Road
Southborough, MA 01772 U.S.A.
Address
Attn: Customer Service Department
Day time phone no. (
In case we need to contact you about your order.
)
or for MasterCard, Visa or Discover orders:
Cardholder name (please print):
Cardholder signature:
Card Number:
Expiration Date:
Please Check:
MasterCard ꢁ
Visa ꢁ
Discover ꢁ
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L I M I T E D WA R R A N T Y
other rights which vary from region to
region. This warranty applies only to the
original purchaser of this product.
D U R A C R A F T
4 G a l l o n ( 1 5 . 1 L i t r e )
O u t p u t P e r D a y
®
B. At its option Duracraft will repair or
replace this product if it is found defec-
tive in material or workmanship.
Defective product should be returned
directly to Duracraft.
D U R A C R A F T
N AT U R A L C O O L
M O I S T U R E ™ H U M I D I F I E R
This product has been engineered
and crafted with great care for your
satisfaction.
C. This warranty does not cover damage
resulting from any unauthorized attempts
to repair or from any use not in accor-
dance with this manual.
Please read all instructions before
attempting to use this product. Be sure
to fill out and return the enclosed
card within 7 days of purchase.
D. Return defective product to the follow-
ing address with a brief description of
the problem. Include proof of purchase
and a U.S. $10.00/Can.$13.50 check
or money order for handling, return pack-
ing and shipping charges. Please include
your name, address and a daytime
phone number. You must prepay shipping
charges. Mark carton “Attention Repair
Department.” Ship to:
A. This 5 year limited warranty applies
to repair or replacement of product found
to be defective in material or workman-
ship. This warranty does not apply to
damage resulting from commercial, abu-
sive, unreasonable use or supplemental
damage. Defects that are the result of
normal wear and tear will not be consid-
ered manufacturing defects under this
warranty. Duracraft is not liable for inci-
dental or consequential damages of any
nature. Any implied warranty of mer-
chantability or fitness for a particular pur-
pose on this product is limited in duration
to the duration of this warranty. Some
regions do not allow the exclusion or lim-
itation of incidental or consequential
damages, or limitations on how long an
implied warranty lasts, so the above limi-
tations or exclusions may not apply to
you. This warranty gives you specific
legal rights, and you also may have
Duracraft Corp.
Southpoint Distribution Center
4755 Southpoint Drive
Memphis, TN 38118
U.S.A.
NOTE: THIS WARRANTY DOES NOT
COVER THE NATURAL COOL MOISTURE™
FILTER, WHOSE PERFORMANCE WILL
DEPEND UPON THE CONDITION OF
THE WATER USED IN THE HUMIDIFIER.
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©1997 All rights reserved. Duracraft Corp.
HU4080.97
4/97
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