Owner Manual

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English

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TERMINATION CLEARANCES

Clearance Requirements from Vent Terminations to Building Openings

*All clearance requirements are in accordance with ANSI Z21.10.3a-2017 and the National Fuel Gas Code, ANSI Z223.1

Maintain the following clearances to any

opening in any building:

• 4’ below, 4’ horizontally from, or 1’ above

any door, operable window, or gravity air

inlet into any building.

• 3’ above any forced air inlet within 10’.

Vent Clearances When

Heater is Installed Indoors

Illustration

TERMINATION

CLEARANCES

A) A minimum clearance value determined by testing in accordance with Clause 5.20, or;

B) A reference to the following footnote:

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

• A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family

dwellings and serves both dwellings.

• Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the ﬂ oor.

Notes:

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

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

Venting

Installation