Bradford-White Corp 238-42498-00J REV 10/06 Internet Version for Reference Only, Venting

Models: Direct Vent Gas Water Heater 238-42498-00J REV 10/06

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VENTING

Internet Version for Reference Only

Installation continued-

VENTING

This is a Direct Vent Gas Water Heater where all air for combustion is obtained from the outside atmosphere and all flue gases are discharged to the outside atmosphere.

DO NOT install any damaged vent-air intake system components.Contact the manufacturer of the water heater for replacement parts.Manual backgroundWARNING

The vent-air intake system must be properly installed. Failure to properly install the vent-air intake system properly could result in property damage, personal injury or death.

DO NOT install any damaged vent-air intake system components.

Contact the manufacturer of the water heater for replacement parts.

Note: Provide protection of the building materials from degradation by flue gases from the direct vent-air intake terminal.

Figure 5.

Direct Vent Terminal Clearances

 

 

Canadian

US Installations2

 

 

Installations1

 

 

 

 

 

A=

Clearance above grade, veranda,

12 inches (30

12 inches

 

porch, deck or balcony

cm)

(30 cm)

B=

Clearance to widow or door that may

12 inches (30

9 inches (23 cm) for appliances

 

be opened

cm)

> 10,000 Btuh (3 kW) and ≤

 

 

 

50,000 Btuh (15 kW), 12 inches

 

 

 

(30 cm) for appliances > 50,000

 

 

 

Btuh (15 kW)

C=

Clearance to permanently closed

*b

*b

 

widow

 

 

D=

Vertical clearance to ventilated soffit

12 inches (30

12 inches (30

 

located above the terminal within a

cm) *a

cm) *a

 

horizontal distance of 2 feet (61 cm)

 

 

 

from the center line of the terminal

 

 

E=

Clearance to unventilated soffit

12 inches (30

12 inches (30

 

 

cm) *a

cm) *a

12

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Bradford-White Corp 238-42498-00J REV 10/06, Direct Vent Gas Water Heater Internet Version for Reference Only, Venting