Common Venting Using Tile-Lined Interior Masonry Chimne

MINIMUM LENGTH = AS SHORT AS PRACTICAL.

FOR MAXIMUM LENGTH SEE NOTE TO LEFT

NOTE- Refer to provided venting tables

J

for installations in the USA and the

 

venting tables in current CSA B149 for

 

installations

in Canada.

_

 

 

m

FU

OTHER

APPLIANCE

_Row

'and Combined Vent Connector

J

INTERIOR TILE=LINED

MASONRY CHIMNEY

NOTE - the chimney must be properly

sized per provided venting tables or lined with listed metal lining system.

PERMANENTLY

SEALED FIREPLACE

OPENING

NOTE - Either single-walled or double-walled vent connector may be used. Refer to the capacity requirements as shown in the pro- vided venting tables for installations in USA and the venting tables in current CSA B149 for installations in Canada.

 

 

 

 

 

 

 

 

 

 

 

 

FIGURE

18

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

,IMPORTANT

 

 

 

 

Never connect a Category I appliance to a chimney that is

 

 

 

 

 

 

 

servicing

a solid-fuel appliance.

If a fireplace

 

chimney flue

 

 

 

 

 

 

 

 

 

 

 

 

 

is used to vent this appliance, the fireplace opening must

 

 

 

 

 

 

 

 

 

 

 

 

 

be permanently

sealed.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A type B or listed chimney lining system that passes

 

 

 

 

 

 

 

 

 

 

 

 

 

through an unused masonry chimney flue is not considered

 

 

 

 

 

 

 

 

 

 

 

 

 

to be exposed to the outdoors.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

General

Venting

Requirements

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Vent all G50UH(X) furnaces according to these instruc-

A fan-assisted furnace may be commonly vented into an

tions:

 

 

 

 

 

 

 

 

 

 

 

1 - Vent diameter recommendations and maximum allow-

existing lined masonry chimney if the following conditions

 

able piping runs are found in the provided venting tables

are met:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

for the USA, and the appropriate venting tables in the

• The chimney is currently serving

at least one drafthood

 

 

standards of CSA B149 Natural Gas and Propane

equipped

appliance

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Installation

Codes for Canada.

 

 

 

 

• The vent connectors and chimney are sized accord-

 

 

 

 

 

2 -

In no case should

the vent or vent connector

diameter

ing

to the provided

venting tables

for the USA, and

 

be less

than the

diameter

specified

in

 

the

provided

the

appropriate

venting

tables

in

the standards

of

 

 

CSA

B149

Natural

Gas

and

Propane

Installation

 

venting

tables for the USA, and the appropriate venting

Codes

in Canada.

 

 

 

 

 

 

 

 

tables in the standards

of CSA B149 Natural Gas and

If type B1 double-wall vent is used inside a chimney, no oth-

 

Propane

Installation Codes

for Canada.

 

 

 

er appliance

can be vented into the chimney. The outer wall

3 -

Single appliance

vents -If the vertical vent or tile-lined

of type B1 vent

pipe must not be exposed

to flue products.

 

chimney

has a larger

diameter or flow

area

than the

A type B1 vent or masonry chimney liner shall terminate

 

vent connector, use the vertical vent diameter to de-

 

termine

the

minimum

vent capacity

 

and

the vent

above the roof surface with a listed

cap or a listed roof as-

 

 

sembly according to the terms of their respective listings

 

connector diameter to determine the maximum vent

 

 

 

 

 

 

 

 

 

 

 

 

 

and the vent manufacturer's instructions.

 

 

 

 

 

capacity,

The flow area of the vertical

vent,

however,

When inspection reveals that an existing chimney is not

 

shall not exceed 7 times the flow area of the listed ap-

 

pliance

categorized vent area, drafthood

 

outlet area or

safe for the intended purpose,

it shall be rebuilt to conform

 

 

to nationally

recognized

standards,

lined

or

relined

with

 

flue collar area unless designed according

to approved

suitable

materials,

or replaced

with a gas vent

or chimney

 

engineering

methods.

 

 

 

 

 

 

suitable

for venting

G50UH(X)

series units. The chimney

4 -

Multiple

appliance

vents - The flow area

of the largest

passageway

must be checked

periodically to ensure that it

 

section

of vertical

vent

or chimney shall not exceed 7

is clear and free of obstructions.

 

 

 

 

 

 

times the smallest listed appliance categorized vent

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Do not install

a manual damper, barometric

draft regulator,

 

area, drafthood outlet area orflue collar area unless de-

or flue

restrictor

between

the furnace and

the chimney.

 

signed according to approved engineering

methods.

Page 14

Page 13 Page 15
Page 14
Image 14
Lennox International Inc G50UH-36B-090 Common Venting Using Tile-Lined Interior Masonry Chimne, Combined Vent Connector
Page 13 Page 15

G50UH-60D-155, G50UH-36B-090, G50UH-36A-070, G50UH-24A-045, G50UH-60D-135 specifications

Lennox International Inc is renowned for its high-quality heating, ventilation, and air conditioning (HVAC) solutions. Among its versatile product lineup are the G50UH series of gas furnaces, which exemplify efficiency and performance. These models, specifically the G50UH-24A-070, G50UH-24A-045, G50UH-36B-090, G50UH-36A-070, and G50UH-48C-135, offer a range of features tailored to meet varying residential heating demands.

One of the key features of the G50UH series is its energy efficiency. Many models in this lineup boast an impressive Annual Fuel Utilization Efficiency (AFUE) rating, which indicates their ability to convert fuel into usable heat efficiently. These high AFUE ratings can lead to significant savings on energy bills, making these furnaces a cost-effective choice for homeowners.

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Safety is paramount in Lennox designs, and the G50UH series is no exception. Each unit is equipped with safety features designed to protect both the furnace and the home. Dual certification ensures that the products meet stringent safety standards. Moreover, features like a self-diagnostic control board streamline maintenance, allowing homeowners to easily identify potential issues.

Another important characteristic of the G50UH series is its compact design, which is beneficial for homes with limited space. The units are designed to fit comfortably in various installation environments, from basements to utility rooms.

Durability is another hallmark of the G50UH furnaces. Constructed with quality materials, these units are designed for long-term reliability. This ensures that homeowners can enjoy the comfort of their heating systems without frequent repairs.

Lastly, Lennox provides extensive support and warranties, giving homeowners peace of mind associated with their purchase. With options tailored to meet diverse home heating needs, the Lennox G50UH series stands out in the HVAC market, combining efficiency, safety, and reliability in one impressive package.
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