Checking Vent Capacity, Chimneys, Relining Systems, Continued

VENTING INSTALLATION

Checking Vent Capacity

Chimneys

Relining Systems

High Altitude Installation

VENTING INSTALLATION

Continued

CHECKING VENT CAPACITY

Complete all gas piping, electrical, and vent connections. After adjust- ing the burner system and lighting the main burners, allow a couple of minutes for warm-up. Hold a lighted match just under the rim of the draft hood relief opening. Proper venting will draw the flame toward or into the draft hood. Improper venting, indicated by escape or spillage of burned gas, will cause match to flicker or go out. Smoke from a cigarette will also be pulled into the draft hood if the vent is drawing properly.

Figure 25 - Test for Proper Venting

CHIMNEYS

•Complete familiarity with chimney condition, height, size, clear- ance to combustibles and other factors is essential.

NOTICE: Consult the authority having jurisdiction in your area regarding masonry chimney venting applications.

NOTICE: A complete chimney inspection by a quali- fied person should be performed.

•Appliances using B-vent connectors to vent into a masonry or factory-built chimney should not exceed 1 1/2 feet in length for every inch of connector diameter (3" vent connector has a maxi- mum 4 1/2 foot length; 5" connector has maximum 7 1/2 foot length).

•Oversized chimneys should be relined with appropriate listed relining systems.

•Cleanout access may be required.

RELINING SYSTEMS

•Suitability and approval of relining materials should be determined.

•Condition, size, height, and termination of the chimney to be relined must be determined.

•No substitution of components should be made.

•Joints and connectors should be made according to manufacturer’s instructions.

Figure 26 - Straight	Figure 27 - Typical Straight
Installation into Masonry	Installation with Listed Chimney
Chimney	Liner

NOTICE: Consult the authority having jurisdiction in your area regarding listed chimney liner venting applications.

WARNING: Operation of improperly installed and maintained venting system could result in serious injury, property damage, or loss of life.

HIGH ALTITUDE INSTALLATION

Your DESA B-vent burner system has been AGA tested and ap- proved for elevations from 0-2000 feet and CGA certified for eleva- tions from 0-4500 feet.

When installing this burner system at an elevation above 2000 feet (in the USA), you may need to decrease the input rating by changing the existing burner orifice to a smaller size. Reduce input 4% for each 1000 feet above sea level. Check with your local gas company for proper orifice size identification and proper orifice for your location.

When installing this stove and burner system at an elevation above 4500 feet (in Canada), check with local authorities.

For assistance with any high altitude installation contact DESA’s Technical Service Department at 1-866-672-6040.

For morevisit www..com