Bosch 830 ES Installation And Operating Instructions Manual page 23

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Clearance to non-mechanical air supply inlet to building or the

combustion air inlet to any other application

Clearance to mechanical air supply inlet

Clearance above paved sidewalk or paved driveway located on

public property

Clearance under veranda, porch deck or balcony

1) In accordance with the current CSA B149.1 Natural Gas and Propane Installation Code

2) If locally adopted installation codes specify clearances different than those illustrated, then the most stringent clearance shall

prevail.

3) In accordance with the current ANSI Z223.1 / NFPA 54 National Fuel Gas Code

4) A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and

serves both dwellings.

5) Permitted only if veranda, porch, deck or balcony is fully open on a minimum of two sides beneath the floor.

Table 20

[*]

For clearances not specified in ANSI Z223.1 / NFPA 54 or CSA-B149.1, one of the following shall be indicated:

a) A minimum clearance value determined by testing in accordance with section 2.20, or;

b) A reference to the following footnote:

"Clearance in accordance with local installation codes and the requirements of the gas supplier."

830 ES – 6 720 644 936 (2021/08)

Canadian

1)2)

installations

36 in.

72 in.

84 in.

12 in.

Installation instructions

2)3)

U.S. installations

4 feet below or to side of

opening;

1 foot above opening

36 in. above if within 10 feet

horizontally

84 in.

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