Kenmore Power Miser 12 153.331413 HA User manual

Owner's Manual
POWER MISER TM12
GAS WATER HEATER
FOR POTABLE WATER HEATING ONLY.
NOT SUITABLE FOR SPACE HEATING.
NOT FOR USE IN MOBILE HOMES.
MODEL NO.
153.331413 HA
153.331443
153.331514 HA
153.331543
40 Gallon High Altitude
40 Gallon
50 Gallon High Altitude
50 Gallon •Safety Instruction
•Installation
•Operation
•Care and Maintenance
•Troubleshooting
•Parts List
For Your Safety
AN ODORANT IS ADDED TO TH EGAS USED BY THIS WATER HEATER.
C3 Technology TM Gas Water Heaters meet
the new AN SI Z21.10.1 standard that deals
with the accidental or unintended ignition
of flammable vapors, such as those
emitted by gasoline.
Read and understand instruction
manual and safety messages
before installing, operating or
servicing this water heater.
Failure to follow instructions and
safety messages could result in
death or serious injury.
Instruction manual must remain
with water heater.
Si no puede leer o entender el ingles y necesita el manual instructive
y/o etiquetas eo espaSol puede obtenerlos IIamando aI
1-800-821-2017. NO TRATE DE INSTALAR O OPERAR ESTE
CALENTADOR DE AGUA si no entiende la informacibnen las etiquetas
o en el manual instructive. No hacer case de esta adver[eecia podria
resultar en la MU ERTE O GRAVES LESION ES CORPORALES.
WARNING: If the information in these
instructions is not followed exactly, a fire
or explosion may result causing property
damage, personal injury or death.
-- Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this orany other appliance.
-- WHAT TO DO IF YOU SMELL GAS:
•Do nottryto light anyappliance,
•Do not touch any electrical switch; do
not use any phone in your building.
•Immediately call your gas supplier
from a neighbor's phone. Follow the
gas supplier's instructions.
• If you cannot reach your gas supplier,
call the fire department.
--Installation and service must be
performed by a qualified installer,
service agency or the gas supplier.
Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A
PART NO. 184233-000
PRINTED IN THE U.S.A 0204 www.sears.com SUPERSEDES PART NO. 184484-000

Your safety and the safety of others is extremely important in the installation, use and servicing of this water heater.
Many safety-related messages and instructions have been provided in this manual and on your own water heater to warn you and
others of apotential injury hazard. Read and obey all safety messages and instructions throughout this manual. It is very
important that the meaning of each safety message is understood by you and others who install, use or service this water heater.
This is the safety alert symbol. It is used to alert you
to potential personal injury hazards. Obey all safety
messages that follow this symbol to avoid possible
injury or death.
DANGER indicates an imminently
hazardous situation which, if not avoided,
could result in death or injury.
WARNING indicates a potentially hazardous
situation which, if not avoided, could result
in death or injury.
CAUTION indicates a potentially hazardous
situation which, if not avoided, may result
in minor or moderate injury.
CAUTION used without the safety alert
symbol indicates a potentially hazardous
situation which, if not avoided, could result
in property damage.
All safety messages will generally tell you about the type of hazard, what can happen if you do not follow the safety message and
how to avoid the risk of injury.
IMPORTANT DEFINITIONS
Gas Supplier: The natural gas or propane utility or service who supplies gas for utilization by the gas burning
appliances within this application. The gas supplier typically has responsibility for the inspection and code approval of
gas piping up to and including the natural gas meter or propane storage tank of a building. Many gas suppliers also
offer service and inspection of appliances within the building.
© Sears, Roebuck and Co. 2

Readandunderstandinstruction
manualandsafetymessages
beforeinstalling,operatingor
servicingthiswaterheater
Failuretofollowinstructionsand
safetymessagescouldresultin
deathorseriousinjury.
Instructionmanualmustremain
withwaterheater.
Watertemperatureover125°F
(52°C)cancausesevereburns
instantlyresultinginsevereinjury
ordeath.
Children,the elderly,andthe
physicallyor mentallydisabled
areathighestriskforscaldinjury.
Feel water before bathing or
showering.
Temperature limiting valves are
available.
Read instruction manual for safe
temperature setting
Fire or Explosion Hazard
•Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any other
appliance.
• Avoid all ignition sources if you smell LP gas.
Do not expose water heater control to excessive gas
pressure.
Use only gas shown on rating plate.
Maintain required clearances to combustibles.
Keep ignition sources away from faucets after
,, extended penod of non-use.
Read instruction manual before
installing, using or servicing
Fire Hazard
For continued protection against
risk of fire:
•Do not install water heater on
carpeted floor.
•Do not operate water heater if
, __ , flood damaged.
_x., Explosion Hazard
• Overheated water can cause
watertank explosion
• Properly sized temperature
and pressure relief valve must
be installed in opening
provided.
Breathing Hazard - Carbon Monoxide Gas
• Install vent system in accordance with
codes
• Do not operate water heater if flood
damaged.
• High altitude orifice mustbe installed for
operation above 3,300 feet (1,006 m)
(or above 5,500 (1,676 m) feet for high
altitude models)
• Do not operate if soot buildup.
• Do not obstruct water heater air intake
with insulating jacket.
• Do not place chemical vapor emitting
products near water heater.
• Gas and carbon monoxide detectors
are available
Breathing carbon monoxide can cause brain damage or
death. Always read and understand instruction manual.
Improper installation and use may result
in property damage.
• Do not operate water heater if flood damaged.
• Inspect and replace anode
• Install in location with drainage.
• Fill tank with water before operation.
• Be alert for thermal expansion
Refer to instruction manual for installation and service.
3

SAFE INSTALLATION, USE AND SERVICE ................................................................................................. 2
SAFETY PRECAUTIONS .............................................................................................................................. 3
TABLE OF CONTENTS ................................................................................................................................ 4
CUSTOMER RESPONSIBILITIES ................................................................................................................ 5
PRODUCT SPECIFICATIONS ...................................................................................................................... 5
MATERIALS AND BASIC TOOLS NEEDED ................................................................................................. 6
Material Needed ...................................................................................................................................................... 6
Basic Tools ............................................................................................................................................................. 6
TYPICAL INSTALLATION ............................................................................................................................... 7
INSTALLATION INSTRUCTIONS ............................................................................................................... 8-16
Removing the Old Water Heater .............................................................................................................................. 8
Facts to Consider About the Location ................................................................................................................ 9-10
Insulation Jackets ................................................................................................................................................. 10
Combustion Air and Ventilation Appliances
in Unconfined Spaces ............................................................................................................................................ 10
Combustion Air and Ventilation Appliances
in Confined Spaces ........................................................................................................................................... 11-12
Water Piping .................................................................................................................................................... 12-13
Temperature Pressure Relief Valve .................................................................................................................... 13-14
Filling the Water Heater ......................................................................................................................................... 14
Venting ............................................................................................................................................................. 14-15
Gas Piping ....................................................................................................................................................... 15-16
Sediment Trap .................................................................................................................................................. 16-17
OPERATING INSTRUCTIONS ................................................................................................................ 18-19
Lighting & Operating Label .................................................................................................................................... 18
Temperature Regulation ......................................................................................................................................... 19
SERVICE AND ADJUSTMENT ............................................................................................................... 20-22
Tank (Sediment) Cleaning ...................................................................................................................................... 20
Venting System Inspection .................................................................................................................................... 20
Burner Inspection .................................................................................................................................................. 20
Burner Cleaning ..................................................................................................................................................... 20
Housekeeping .................................................................................................................................................. 20-21
Anode Rod Inspection ........................................................................................................................................... 21
Temperature-Pressure Relief Valve Operation ........................................................................................................ 21
Draining ............................................................................................................................................................ 21-22
Drain Valve Washer Replacement .......................................................................................................................... 22
Service .................................................................................................................................................................. _
TROUBLESHOOTING GUIDE ................................................................................................................ 23-26
Start Up Conditions .............................................................................................................................................................23-24
Thermal Expansion .......................................................................................................................................... 23
Strange Sounds ............................................................................................................................................... 23
Draft Hood Operation .................................................................................................................................. 23-24
Condensation .................................................................................................................................................. 24
Smoke/Odor .................................................................................................................................................... 24
Operational Conditions ..................................................................................................................................... 24-25
Smelly Odor .................................................................................................................................................... 24
Air in Hot Water Faucets ................................................................................................................................. 25
High Temperature Shut-Off System .................................................................................................................. 24
Leakage Checkpoints ...................................................................................................................................... 25
Troubleshooting Guide ........................................................................................................................................... 26
PARTS ORDER LIST ................................................................................................................................. 27
WARRANTY ................................................................................................................................................ 28

Thank You for purchasing a Kenmore water heater. Properly
installed and maintained, it should give you years of trouble
free service. If you should decide that you want the new water
heater professionally installed by Sears call 1-800-4-MY-HOME ®.
They will arrange for prompt, quality installation by Sears
authorized contractors.
Abbreviations Found In This Instruction Manual:
• CSA - Canadian Standards Association
• ANSI - American National Standards Institute
NFPA - National Fire Protection Association
• ASME - American Society of Mechanical Engineers
GAMA - Gas Appliance Manufacturers Association
• This gas-fired water heater is design certified by CSA
INTERNATIONAL under American National Standard/CSA
Standard for Gas Water Heaters ANSI Z21.10.1 • CSA 4.1
(current edition).
• Read the"Safety Precautions" section, page 3 of this manual
first and then the entire manual carefully. If you don't follow
the safety rules, the water heater will not operate properly. It
could cause DEATH, SERIOUS BODILY INJURY AND/OR
PROPERTY DAMAGE.
This manual contains instructions for the installation,
operation, and maintenance of the gas-fired water heater. It
also contains warnings through out the manual that you must
read and be aware of. All warnings and all instructions are
essential to the proper operation of the water heater and
your safety. Since we cannot put everything on the first few
pages, READ THE ENTIRE MANUAL BEFORE A'n'EMPTING
TO INSTALL OR OPERATE THE WATER HEATER.
The installation must conform with these instructions and
the local code authority having jurisdiction. In the absence of
local codes, installations shall comply with the following:
In the United States: The National Fuel Gas Code ANSI
Z223.1/NFPA 54. This publication is available from the
Canadian Standards Association, 8501 East Pleasant Valley
Rd, Cleveland Ohio 44131, or The National Fire Protection
Association, 1 Batterymarch Park, Quincy, MA 02269.
If after reading this manual you have any questions or do not
understand any portion of the instructions, call the Sears
Service Center.
Carefully plan the place where you are going to put the water
heater. Correct combustion, vent action, and vent pipe
installation are very important in preventing death from
possible carbon monoxide poisoning and fires. See
figure 1.
Examine the location to ensure the water heater complies
with the Facts to Consider About the Location section in this
manual.
For California installation this water heater must be braced,
anchored, or strapped to avoid falling or moving during an
earthquake. See instructions for correct installation
procedures. Instructions may be obtained from your local
dealer, wholesaler, public utilities or California Office of the
State Architect, 400 P Street, Sacramento, CA 95814.
Massachusetts Code requires this water heater to be
installed in accordance with Massachusetts 248-CMR 2.00:
State Plumbing Code and 248-CMR 5.00.
Complies with SCAQMD rule #1121 and districts having
equivalent NOx requirements.
RECOVERY MINIMUM DIMENSIONS
TANK 'TYPE RATE GALS, VENTPIPE DIAMETER IN INCHES (mm)
CAPACITY OF BllJ PERHOUR INCHES INCHES HEIGHTTO
MODEL NUMBER IN GALS (LTRS) GAS RATE @ 90°F RISE (mm) (mm) JACKETTOP
153331413HA 40(151) NATURAL 40,000 44.9 3"(76)or 4"(102) 201/2"(521) 58"(1,473)
153,331443 40(151) NATURAL 40,000 44.9 3"(76)or 4"(102) 201/2"(521) 58"(1,473)
153,331514 HA 50 (189) NATURAL 40,000 44.9 3" (76) or 4" (102) 22" (558) 59 1/2" (1,511)
153,331543 50 (189) NATURAL 40,000 44.9 3" (76) or 4" (102) 22" (558) 59 1/2" (1,511)

Materials Needed
To simplify the installation Sears has available the installation parts shown below. You may or may not need all of these material,
depending on your type of installation.
WATER HEATER
INSTALLATION
KIT WITH FLEXIBLE
CONNECTORS
FOR 3/4" (19.05 ram)
OR 1/2" (12.7 ram)
THREADED OR
COPPER PLUMBING
FLEXIBLE WATER HEATER GAS
CONNECTOR WITH FITTINGS
(DRAIN PANS AVAILABLE IN 20" (508 ram)
DIAMETER FOR WATER HEATERS
HAVING A DIAMETER 18" (457 ram) OR
LESS, 24" (610ram) DIAMETER FOR
WATER HEATERS HAVING A DIAMETER
22" (559 ram) OR LESS AND AVAILABLE
IN 28" (711 ram) DIAMETER FOR WATER
HEATERS HAVING A DIAMETER 26"
(660 mm) OR LESS
WATER HEATER HEAT
TRAPSHELPREDUCE
HEATLOSSDUETO
THERMALSIPHONING
EXPANSION TAN KS FOR THERMAL EXPANSION
CON DITIONS AVAILABLE IN 2 GALLONS
(7.6 LITERS) AND 5 GALLONS (18.9 LITERS)
CAPACITY THROUGH LOCAL SEARS STORE OR
SERVICE CENTER
Basic Tools
You may or may not need all these tools, depending on your
type of installation. These tools can be purchased at your local
Sears Store.
Pipe Wrenches (2) 14" (356 mm) _FIF_===_
Screwdriver
Tin Snips
6' (1.82 m) Tape or Folding Ruler
Garden Hose
Drill
Pipe Dope or Teflon Tape DRILL
SLOT-HEAD SCREWDRIVER
PHILLIPS SCREWDRIVER
ROLL OF TEFLON
TAPE (USE ONLY ON
WATER HEATER
CONNECTIONS)
TIN SNIPS
PIPE DOPE
(SQUEEZE TUBE)
USE FOR WATER AND GAS
CONNECTIONS
GARDENHOSE 6 FOOTTAPE PIPE WRENCH
Additional Tools Needed
When Sweat Soldering
Tubing Cutters or Hacksaw
Propane Tank
Soft Solder
Solder Flux
Emery Cloth
Wire Brushes
TUBING CUTTER PROPANE
TORCH
HACKSAW ROLL OF EMERY CLOTH
3/4" (19 ram) WIRE BRUSH
1/2" (13 mm) WIRE BRUSH ROLL OF LEAD-FREE SOLDER
SOFT SOLDER FLUX

GET TO KNOW YOUR WATER HEATER - GAS MODELS
A Vent Pipe
B Draft Hood
C Anode
D Hot Water Outlet
E Outlet
F Flexible Water Connections
G Gas Supply
H Manual Gas Shut-off Valve
I Ground Joint Union
J Drip Leg (Sediment Trap) S Flue Baffle
K Inner Door T Thermostat
L Outer door U Drain Valve
M Union V Pilot and Main Burner
N Inlet Water Shut-off Valve W Flue
O Cold Water Inlet X Drain Pan
P Inlet DipTube Y Piezolgniter
Q Temperature-Pressure Relief Valve Z Air Intake Screen
R Rating Plate
* INSTALL INACCORDANCE
WITH LOCAL CODES.
* DRIP LEG AS REQUIRED
BY LOCAL CODES.
TO VENT TERMINATION
ON ROOF
A
B
D
\
w
v
Z
* ALL PIPING MATERIALS TO BE
SUPPLIED BY CUSTOMERS.
INSTALL THERMAL EXPANSION
TANK OR DEVICE IF WATER
HEATER IS INSTALLED IN A
CLOSED WATER SYSTEM
VACUUM RELIEF
VALVE
_INSTALLPER
LOCAL CODES
Q
S
K
RGURE1,
7
(T) THERMOSTAT
GAS CONTROL KNOB
WATER TEMPERATURE
(ADJUSTING DIAL)
"OFF .... PILOT .... ON" 1
POSITION POSITION POSITION
_TOP VIEW
(V) PILOT & MAIN BURNER
BURNER TUBE
/
THERMOCOUPLE
MAIN BURNER
PILOT TUBING
THERMOCOUPLB
TCO
-_- IGNITER ROD
\\PILOT BURNER

Removing the Old Water Heater
® ® ®
FIGURE2,
QTum "OFF" the gas supply to the
water heater.
If the main gas line shutoff valve
serving all gas appliances is
used, also shut "OFF" the gas at
each appliance. Leave all gas
appliances shut "OFF" until the
water heater installation is
completed, see Figures 2 and 3. RGURE3,
Turn water supply to
"OFF' the the
water heater at the water shut-off
valve or water meter. Some
installations require that the water
be turned off to the entire house,
see Figures 2 and 4. RGURE4.
(_ Check to make the is "OFF" to the
again sure gas supply
water heater. Then disconnect the gas supply connection
from the gas control valve.
• Burn hazard
• Hot water discharge.
• Keep hands clear of drain
valvedischarge.
(_) Attach hose to the water heater
a
drain valve and put the other end
in a floor drain or outdoors. Open
the water heater drain valve. Open
a nearby hot water faucet which will
relieve pressure in the water
heater and speed draining. The
water passing out of the drain valve
may be extremely hot. To avoid
being scalded, make sure all
connections are tight and that the
water flow is directed away from
any person, see Figures 2 and 5. RGURE5,
(_) Disconnect the vent from the draft hood where itconnectspipe
to the water heater. In most installations the vent pipe can
be lifted off after any screw or other attached devices are
removed. Dispose of the draft hood. The new water heater
has a draft hood which must be used for proper operation.
Q If have to the water heater, the two
you copper piping copper
water pipes can be cut with a hacksaw approximately four
inches away from where they connect to the water heater,
see Figure 6. This will avoid cutting off pipes too short.
Additional cuts can be made later if necessary. Disconnect
the temperature-pressure relief valve drain line. When the
water heater is drained, disconnect the hose from the drain
valve. Close the drain valve. The water heater is now
completely disconnected and ready to be removed.
FIGURE&
If you have galvanized pipes to the water heater, loosen the
two galvanized pipes with a pipe wrench at the union in each
line. Also disconnect the piping remaining to the water heater,
see Figure 7. These pieces should be saved since they may
be needed when reconnecting the new water heater.
Disconnect the temperature-pressure relief valve drain line.
When the water heater is drained, disconnect the hose from
the drain valve. Close the drain valve. The water heater is
now completely disconnected and ready to be removed.
Mineral buildup or sediment may have accumulated in the
old water heater. This causes the water heater to be much
heavier than normal and this residue, if spilled out, could
cause staining.
4
FIGURE7.
8

Facts to Consider About
the Location
Carefully choose an indoor location for the new water heater,
because the placement is a very important consideration for
the safety of the occupants in the building and for the most
economical use of the appliance. This water heater is not for
use in manufactured (mobile) homes or outdoor installation,
Whether replacing an old water heater or putting the water heater
in a new location, the following critical points must be observed:
Select a location indoors as close as practical to the gas
vent or chimney to which the water heater vent is going to be
connected, and as centralized with the water piping system
as possible.
Selected location must provide adequate clearances for
servicing and proper operation of the water heater.
Property Damage Hazard
•Allwaterheaterseventuallyleak
• Denotinstallwithoutadequatedrainage
Installation of the water heater must be accomplished in such a
manner that if the tank or any connections should leak, the flow
will not cause damage to the structure. For this reason, it is not
advisable to install the water heater in an attic or upper floor.
When such locations cannot be avoided, a suitable drain pan
should be installed under the water heater. Drain pans are
available at your local Sears or hardware store. Such a drain
pan must have a minimum length and width of at least 2 inches
(51 mm) greater that the water heater dimensions and must be
piped to an adequate drain. The pan must not restrict
combustion air flow.
Fire or Explosion Hazard
heater's pilot light or main burner. The resulting flashback and
fire can cause death or serious burns to anyone in the area.
Even though this water heater is a flammable vapors ignition
resistant water heater and is designed to reduce the chances
of flammable vapors being ignited, gasoline and other
flammable substances should never be stored or used in the
same vicinity or area containing a gas water heater or other
open flame or spark producing appliance.
Also, the water heater must be located and/or protected so it is
not subject to physical damage by a moving vehicle.
I i_ Fire Hazard
For continued protection against
risk of fire:
•Do not install water heater on
carpeted floor,
•Do not operate water heater if
flood damaged.
This water heater must not be installed directly on carpeting.
Carpeting must be protected by metal or wood panel beneath
the appliance extending beyond the full width and depth of the
appliance by at least 3 inches (76.2mm) in any direction, or if
the appliance is installed in an alcove or closet, the entire floor
must be covered by the panel. Failure to heed this warning may
result in a fire hazard.
Fire or Explosion Hazard
using or servicing water heater.
• Improper use may result in fire or
explosion.
• Maintain required clearances to
combustibles.
• Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any other
appliance,
• Avoid all ignition sources if you smell LP gas.
• Do not expose water heater control to excessive gas
pressure
• Use only gas shown on rating plate.
• Maintain required clearances to combustibles,
• Keep ignition sources away from faucets after
,, extended period of non-use.
Read instruction manual before
installing, using or servicing
water heater.
INSTALLATIONS IN AREAS WHERE FLAMMABLE LIQUIDS
(VAPORS) ARE LIKELY TO BE PRESENT OR STORED
(GARAGES, STORAGE AND UTILITY AREAS, ETC.):
Flammable liquids (such as gasoline, solvents, propane [LP or
butane, etc.] and other substances such as adhesives, etc.)
emit flammable vapors which can be ignited by a gas water
Minimum clearances between the water heater and combustible
construction are 0 inch at the sides and rear, 4 inches
(102 mm) at the front, and 6 inches (153 mm) from the vent
pipe, see Figure 8. Clearance from the top of the jacket is 12
inches (305 mm) on most models. Note that a lesser dimension
may be allowed on some models, refer to the label attached
adjacent to the gas control valve on the water heater.
TOP VIEW TOP VIEW
OF CLOSET OF CLOSET
WITHOUT DOOR WITH DOOR
II0" MIN. 4" MIN.
4mm)
0" MIN.
RGURE&
9

Breathing Hazard - Carbon Monoxide Gas
Install water heater in accordance
with the instruction manual and
NFPA 54.
To avoid injury, combustion and
ventilation air must be taken from
outdoors.
Do not place chemical vapor
emitting products near water
heater.
Breathing carbon monoxide can cause brain damage or
death. Always read and understand instruction manual.
A gas water heater cannot operate properly without the correct
amount of air for combustion, see Figure 9. Do not install in a
confined area such as a closet, unless you provide air as shown
in the Locating The New Water Heatersectien. Never obstruct
the flew of ventilation air. If you have any doubts or questions at
all, call your gas supplier. Failure to provide the proper amount
of combustion air can result in a fire or explosion and cause
death, serious bodily injury, or property damage.
12" MAX. (30 crn)
1
VENTILATION
AIR
OPENING O
FRONT VIEW
OF DOOR
J_ 12" MAX.
. (30_)
AIR DUCT
FIGURE9.
If this water heater will be used in beauty shops, barber shops,
cleaning establishments, or self-service laundries with dry
cleaning equipment, it is imperative that the water heater or
water heaters be installed so that combustion and ventilation
air be taken from outside these areas.
Propellants of aerosol sprays and volatile compounds,
(cleaners, chlorine based chemicals, refrigerants, etc.) in
addition to being highly flammable in many cases, will also
change to corrosive hydrochloric acid when exposed to the
combustion products of the water heater. The results can be
hazardous, and also cause product failure.
Insulation Blankets
Insulation blankets available to the general public for external
use on gas water heaters are net necessary with Kenmere
products. The purpose of an insulation blanket is to reduce the
standby heat less encountered with storage tank heaters. Your
Kenmere water heater meets or exceeds the National Appliance
Energy Conservation Act standards with respect to insulation
and standby loss requirements, making an insulation blanket
unnecessary.
Breathing Hazard - Carbon Monoxide Gas
•":_'-_ o(__:;'_;._,•Do not obstruct water heater air
,,. ,,,.,. intake with insulating blanket.
_"ii_i _i_: ° Gas and carbon monoxide
•"*',_;'--;.._I._,_ _ detectors are available.
•" • Install water heater in accordance
_Z_.:_l with the instruction manual.
Breathing carbon monoxide can cause brain damage or
death. Always read and understand instruction manual
_' WARNING
Should you choose to apply an insulation blanket to this heater,
you should follow these instructions (See Figure 1 for
identification of components mentioned below). Failure to fellow
these instructions can restrict the air flew required for proper
combustion, potentially resulting in fire, asphyxiation, serious
personal injury or death.
Do not apply insulation to the top of the water heater, as this
will interfere with safe operation of the draft hood.
Do not cover the outer door, thermostat or temperature &
pressure relief valve.
Do not allow insulation to come within 2" (50.8 mm) of the
fleer to prevent blockage of combustion air flow to the burner.
Do not cover the instruction manual. Keep it on the side of
the water heater or nearby for future reference.
Do obtain new warning and instruction labels from Sears
for placement on the blanket directly over the existing labels.
Do inspect the insulation blanket frequently to make certain
it does net sag, thereby obstructing combustion air flow.
10
Combustion Air and Ventilation for
Appliances Located in Unconfined Spaces
UNCONFINED SPACE is space whose volume is not less than
50 cubic feet per 1,000 Btu per hour (4.8 ms per kW) of the
aggregate input rating of all appliances installed in that space.
Rooms communicating directly with the space in which the
appliances are installed, through openings net furnished with
doors, are considered a part of the unconfined space.
In unconfined spaces in buildings, infiltration may be adequate
to provide air for combustion, ventilation and dilution of flue
gases. However, in buildings of tight construction (for example,
weather stripping, heavily insulated, caulked, vapor barrier, etc.),
additional air may need to be provided using the methods
described in Combustion Air and Ventilation for Appliances
Located in Confined Spaces.