Whirlpool 192906 User Manual

Page of 28
11
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)-latest 
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 
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 10).
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 drafthood by 
a listed vent connector or by directly originating at the 
drafthood 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 
separation, and maintain clearances to combustible 
materials (Figures 11 and 12).
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 12).
Common (combined) venting is allowable with vertical type 
B vent systems and lined masonry chimneys. 
Figures 10-12 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-latest edition and the guidelines set forth 
by prevailing local codes.
*
 Maintain vent pipe clearance requirements to local, state 
and/or the “National Fuel Gas Code”, ANSI Z223.1(NFPA 
54)-latest 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.
Slope up
1/4 in.
per ft.
minimum
3 ft. minimum
2 ft. minimum above any 
            object within10 ft. 
               horizontally
2 ft. minimum above any 
            object within10 ft. 
               horizontally
3 ft. minimum
Vent
connector
slope up
1/4 in. per ft.
minimum
5 in. minimum
Slope up
1/4 in.
per ft.
minimum
*
*
*
**
**
Listed Lined
Chimney