Proper Location For Installing Your Heater; Heater Placement And Clearances; Hanging Appliance On The Wall - Bosch 830 ES Installation And Operating Instructions Manual

(304.8mm) of the bottom of the enclosure. Each opening
must have a minimum free area of one square inch per:
– 1000 BTU/hr (292.81 Watts) if all air is taken from
inside the building
– 2000 BTU/hr (585.62 Watts) if all air is taken from the
outside by horizontal ducts
– 4000 BTU/hr (1171.24 Watts)if all air is taken from
the outside by direct openings or vertical ducts
Or the confined space must be provided with one permanent
opening or duct that is within 12 inches (304.8mm) of the
ceiling of the enclosure. This opening must have a minimum
free area of one square inch per:
– 3000 BTU/hr (878.43 Watts) if all air is taken from the
outside by a direct opening or vertical duct.
Louvers, grills and screens have a blocking effect, when used,
increase the sizes of your openings by 300% for wood louvers
(as wood type will reduce the free air by 75%) and 43% for
metal louvers (as metal will reduce the free air by 30%). Refer
to the National Fuel Gas Code for complete information. In
buildings of tight construction all air should be taken from
outside.
4.5

Proper location for installing your heater

Carefully select the location of the water heater. For your safety
and for proper heater operation, you must provide combustion
air to the heater and a proper exhaust vent system.
Follow the guidelines below:
▶ 1. Locate the heater where venting, gas and plumbing
connections are feasible and convenient.
▶ 2. The hot water lines should be kept short and insulated to
save energy. Centrally locating the water heater is
recommended to keep hot water distribution times even
throughout the structure.
NOTICE:
Risk of appliance freezing!
▶ The water in this water heater is cold and always remains
cold except for the times the burner is on. In the event of
power outage in conjunction with freezing temperatures, it
is recommended that the heater be drained.
See chapter 7.2, page 52 "Winterizing" for draining
instructions.
830 ES – 6 720 644 936 (2021/08)
WARNING:
▶ Flammable materials, gasoline, pressurized containers, or
any other items or articles that are potential fire hazards
must NOT be placed on or adjacent to the heater. The
appliance area must be kept free of all combustible
materials, gasoline and other flammable vapors and
liquids.
4.6

Heater placement and clearances

The water heater design is approved for installation on a
combustible wall (see chapter 4.7 Mounting installation)
provided the floor covering below the heater is
noncombustible.
For installations in an alcove or closet, maintain the minimum
clearances to combustible and non-combustible materials. See
fig. 6, page 14.
4.7

Hanging appliance on the wall

WARNING:
Severe personal injury and property damage!
Before mounting appliance:
▶ Check that there are no loose or damaged parts inside the
appliance.
▶ Confirm that the gas type of the heater matches the gas
supply you will be connecting the heater, see fig. 2,
page 12.
Front cover should be removed (see instructions on page 12) in
order to inspect components visually.
WARNING:
▶ Do not install this appliance on a carpeted wall. The heater
must be mounted on a wall using appropriate anchoring
materials.
Installation instructions
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