Kenmore 153.331572 owner manual Chimney Connection, Vertical Exhaust Gas Vent

•The vent connector must be accessible for cleaning, inspection, and replacement.

•Vent connectors cannot pass through any ceiling, floor, firewall, or fire partition.

•It is recommended (but not mandatory) that a minimum 12 inches of vertical vent pipe be installed on the draft hood prior to any elbow in the vent system.

IMPORTANT: Existing vent systems must be inspected for obstructions, corrosion, and proper installation.

Chimney Connection

IMPORTANT: Before connecting a vent to a chimney, make sure the chimney passageway is clear and free of obstructions. The chimney must be cleaned if previously used for venting solid fuel appliances or fireplaces. Also consult local and state codes for proper chimney sizing and application or, in the absence of local and state codes, the “National Fuel Gas Code”, ANSI Z223.1(NFPA 54)-current edition.

•	The connector must be installed above the extreme bottom
	of the chimney to prevent potentially blocking the flue
	gases.
•	The connector must be firmly attached and sealed to

separation, and maintain clearances to combustible materials (Figures 20 and 21).

IMPORTANT: This gas vent must be terminated in a vertical position to facilitate the removal of the burnt gases.

An unused chimney flue or masonry enclosure may be used as a passageway for the installation of a gas vent (Figure 21).

Common (combined) venting is allowable with vertical type B vent systems and lined masonry chimneys as long as proper draft for the water heater is established under all conditions of operation. CAUTION: DO NOT common vent this water heater with any power vented appliance.

Figures 19-21 are examples of vent pipe system installations and may or may not be typical for your specific application. Consult the “National Fuel Gas Code”, NFPA 54, ANSI Z223.1- current edition and the guidelines set forth by prevailing local codes.

LISTED VENT CAP

	2 FT. MINIMUM ABOVE ANY OBJECT
3 FT. MINIMUM	WITHIN 10 FT. HORIZONTALLY

SUPPORT

STRAP

	prevent it from falling out.
•	To aid in removing the connector, a thimble or slip joint may
	be used.
•	The connector must not extend beyond the inner edge of
	the chimney as it may restrict the space between it and the
	opposite wall of the chimney (Figure 19).

LISTED LINED

CHIMNEY

*MAINTAIN CLEARANCE

VENT

CONNECTOR

SLOPE UP

1/4 IN. PER FT.

MINIMUM

TYPE B DOUBLE WALL VENT PIPE

**MAINTAIN

SPECIFIED CLEARANCE

	2 FT. MINIMUM ABOVE ANY OBJECT
3 FT. MINIMUM	WITHIN 10FT. HORIZONTALLY

SUPPORT

STRAP

VERTICAL GAS VENT SYSTEM WITH

TYPE B DOUBLE WALL VENT PIPE.

FIGURE 20.

MAINTAIN

CLEARANCE*

SEAL

SLOPE

UP 1/4 IN.

PER FT.

MINIMUM

DO NOT EXTEND VENT BEYOND EDGE OF CHIMNEY

VENT

CONNECTOR

	LISTED VENT CAP
	5 FT. MINIMUM
	**MAINTAIN
	SPECIFIED
	CLEARANCE
SUPPORT
STRAP
*MAINTAIN
CLEARANCE	SEAL

CHIMNEY TERMINATION VENT SYSTEM

FIGURE 19.

Do not terminate the vent connector in a chimney that has not been certified for this purpose. Some local codes may prohibit the termination of vent connectors in a masonry chimney.

Vertical Exhaust Gas Vent

Vertical exhaust gas vents must be installed with U.L. listed type B vent pipe according to the vent manufacturer’s instructions and the terms of its listing.

It must be connected to the water heater’s draft hood by a listed vent connector or by directly originating at the draft hood opening.

Vertical gas vents must terminate with a listed cap or other roof assembly and be installed according to their manufacturer’s instructions.

Gas vents must be supported to prevent damage, joint

	VENT CONNECTOR
VENT
CONNECTOR	UNUSED CHIMNEY
SLOPE UP
	FLUE OR MASONRY
1/4 IN. PER FT.
	ENCLOSURE
MINIMUM

VENTING THROUGH A CHIMNEY WITH

TYPE B DOUBLE WALL VENT PIPE.

FIGURE 21.

*Maintain vent pipe clearance requirements to local, state and/or the “National Fuel Gas Code”, ANSI Z223.1(NFPA 54)-current edition.

**NFPA 211, Standard for Chimneys, Fireplaces, Vents, and Solid Fuel-Burning Appliances states that these chimneys are intended to be installed in accordance with the installation instructions provided with each chimney support assembly. Minimum air space clearance to combustible materials should be maintained as marked on the chimney sections.

19