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10
INSULATION BLANKETS
Insulation blankets available to the general public for external
use on gas water heaters are not necessary with this product.
The purpose of an insulation blanket is to reduce the standby
heat loss encountered with storage tank water heaters. Your Wa-
ter heater meets or exceeds the National Appliance Energy Con-
servation Act standards with respect to insulation and standby
loss requirements, making an insulation blanket unnecessary.
Should you choose to apply an insulation blanket to this heater,
you should follow these instructions (See Figure 1 for identifi ca-
tion of components mentioned below). Failure to follow these
instructions can result in fi re, asphyxiation, serious personal
injury or death.
• Do not cover the outer door, thermostat or temperature &
pressure relief valve.
• 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 the manu-
facturer for placement on the blanket directly over the exist-
ing labels.
VENT TERMINATION
Before installing water heater determine placement of vent ter-
mination.
Make certain to observe vent location limitations, see Figures 3
& 15.
Minimum clearances between the water heater and combustible
and noncombustible construction are: 0 in. from sides, 0 in. from
back, 4 in. from front of jacket to closet door and 20 in.* from top
of jacket to combustible and noncombustible material. Minimum
vent clearance: 1 in.**. Provide 3 ft. front clearance for servicing
and adequate clearance between the jacket top & ceiling for
servicing the fl ue vent area, see Figure 3.
* This clearance (20 in.) is required only to accomodate the
minimum vent radius.
** Where the wall is combustible and the wall thickness is over
14 in., 1 in. clearance to combustible surfaces around the vent
terminal is needed. The fi rst 14 in. is zero clearance.
Make certain the vent locations comply with the current edition
of the National Fuel Gas Code ANSI Z223.1/NFPA 54 and/or lo-
cal codes. There is some important information shown in Figure
15.
For a second or more direct vent unit, the distance between vent
terminals must be a minimum of 12 in..
FIGURE 3
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