lp-673 Rev. 000 Rel. 001 Date 8.30.18
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The outdoor enclosure is not designed to carry heavy weight. Do
not stack anything on the water heater. Doing so could result in
substantial property damage, personal injury, or death.
C. Water Heater Exhaust Vent and Intake Notes
1. Ensure the water heater is located where it will not be exposed to
prevailing winds.
2. Do not locate water heater over public walkways, driveways, or
parking lots. Condensate could drip and freeze, resulting in a slip
hazard or damage to vehicles and machinery.
3. Moisture build-up may be created in certain installation locations.
To save time and cost, carefully consider water heater installation
location.
4. The water heater must be installed where vapors cannot make
accidental contact with people or pets, or damage shrubs or plants.
5. Do not use the water heater as a shelf or to support any weight.
6. Maximum Snow Level Determination: These installation
instructions reference snow levels in establishing a minimum
height for the installation of the water heater. Snow levels shall be
determined as follows:
a. The installation location may, by ordinance, designate how snow
levels are calculated in that location; or
b. In the absence of specific ordinances, snow levels shall be
calculated from the average monthly maximum depth of snow
accumulation as indicated by the National Weather Service’s 10
year statistics for the installation location/geographical area.
In addition:
•
The flue products from the exhaust vent will create a large
plume when the heater is in operation. Avoid venting in
areas that will affect neighboring buildings or be considered
objectionable.
•
DO NOT locate the water heater in a parking area where it may
be damaged by machinery.
•
DO NOT vent near soffit vents, crawl space vents, or other
areas where condensate or vapor could create a nuisance or
hazard or cause property damage.
•
DO NOT vent where condensate vapor could cause damage
or could be detrimental to the operation of regulators, relief
valve, or other equipment.
In the Commonwealth of Massachusetts and as Required by
State and Local Codes:
•
The vented gas fueled appliance shall not be installed so its
combustion, ventilation, or dilution air is obtained from a
bedroom or bathroom.
•
Signage: Whenever any water heater is installed less than
seven feet above the finished grade, a metal or plastic
identification plate shall be permanently mounted to the
exterior of the building at a minimum height of eight feet
above grade directly in line with the exhaust vent terminal.
The sign shall read, in print no less than 0.5 inches in size, “GAS
VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS”.
D. Application
Combustion air must be drawn from the outdoors directly into the
water heater intake, and exhaust must terminate safely outside. DO
NOT INSTALL THIS WATER HEATER INDOORS.
Be sure to locate the heater such that the exhaust vent and intake are
properly terminated. See Figure 20 and Table 13 for more information.
Care must be taken to utilize uncontaminated combustion air.
NOTE:
To prevent combustion air contamination, see Table 8.