Dovre 500cc Installation And Operation Manual - Page 6

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CHIMNEYS

THE VENTING SYSTEM CONSISTS OF A CHIMNEY CONNECTOR AND A CHIMNEY. THESE GET EXTREMELY

HOT DURING USE. TEMPERATURES INSIDE THE CHIMNEY MAY EXCEED 2000 DEGREES IN THE EVENT

OF A CREOSOTE FIRE.

TO PROTECT AGAINST THE POSSIBILITY OF A HOUSE FIRE, THE CHIMNEY

CONNECTOR AND CHIMNEY MUST BE PROPERLY INSTALLED AND MAINTAINED.

A THIMBLE MUST BE

USED WHEN A CONNECTION IS MADE THROUGH A COMBUSTIBLE WALL TO A CHIMNEY.

A CHIMNEY

SUPPORT PACKAGE MUST BE USED WHEN A CONNECTION IS MADE THROUGH THE CEILING TO A

PRE-FABRICATED

CHIMNEY.

THESE ACCESSORIES ARE ABSOLUTELY NECESSARY TO PROVIDE SAFE

CLEARANCES TO COMBUSTIBLE WALL AND CEILING MATERIAl.

OF COURSf

THE CHIMNEY IS RESPONSIBLE FOR VENTING OUT SMOKE AND GASES. THIS IS DONE BY

CHIMNEY DRAFT.

DRAFT IS A FUNCTION OF THE HEIGHT AND DIAMETER OF A CHIMNEY FLUE

COMBINED WITH FLUE TEMPERATURE VERSUS OUTSIDE AIR TEMPERATURE. A WARM CHIMNEY WILL

DRAW BETTER ON A COLD DAY THAN ON A MILD DAY. THE AMOUNT OF DRAFT IN YOUR CHIMNEY MAY

ALSO BE DEPENDENT ON LOCAL GEOGRAPHY, NEARBY OBSTRUCTIONS, AND OTHER FACTORS.

THE HORIZON MINIMUM DRAFT REQUIREMENT IS -.055

WATER COLUMN INCHES. TOO MUCH DRAFT

MAY CAUSE EXCESSIVE TEMPERATURE IN THE HEATER AND MAY DAMAGE THE CATALYTIC COMBUSTOR.

INADWUATE DRAFT MAY CAUSE BACKPUFFING INTO THE ROOM AND "PLUGGING" OF THE CHIMNEY OR

THE CATALYST.

HE NFPA, AND MOST LOCAL CODES, STATE THAT

CHIMNEYS MUST BE THE REQUIRED HEIGHT ABOVE

THE ROOF OR OTHER OBSTRUCTIONS FOR SAFETY

AND FOR PROPER DRAFT OPERATION.

THE

REQUIREMENT IS THAT THE CHIMNEY MUST BE AT

I.fAST 3 FEET HIGHER THAN THE HIGHEST POINT

WHERE IT PASSES THROUGH THE ROOF AND AT

LEAST 2 FEET HIGHER THAN THE HIGHEST PART OF

THE ROOF OR STRUCTURE THAT IS WITHIN 10 FEET

OF THE CHIMNEY, MEASURED HORIZONTALLY.

EXISTING t1ASONRY CHIMNEYS MAY BE APPROPRIATE FOR YOUR UNIT IF THE CHIMNEY FLUE DOES NOT

SERVE ANY OTHER APPLIANCE. A DOVRE UNIT REQUIRES A MINIMUM 6

DIAMETER FLUE. IF YOU ARE

PLANNING TO USE AN EXISTING CHIMNEY, FIRST HAVE IT CLEANED AND INSPECTED BY A QUAliFIED

PROFESSIONAL TO INSURE THAT IT IS ACCEPTABLE TO THE LOCAL AUTHORITIES AND IS IN OOOD

CONDITION.

DO NOT CONNECT YOUR UNIT TO AN UNLINED CHIMNEY.

FLUE GASES COULD

PENETRATE INTO THE HOUSE

AND THERE IS A DANGER OF EXPOSING NEARBY WOODEN MEMBERS OF

THE HOUSE TO HIGH TEMPERATURE, DUE TO POSSIBLE DRIED AND CRACKED MORTAR JOINTS.

~RNIN6

STATEMENT:

THE CHIMNEY FLUE CONNECTED TO A DOVRE UNIT MUST

NOT BE USED TO VENT ANY OTHER COAL, GAS, OIL, OR WOODBURNING APPLIANCE, AS

THIS MAY ALLOW HARMFUL ~ES

INTO THE HOUSEHOLD AIR SUPPLY.

-IF YOUR CHIMNEY NEEDS REPAIR, CALL A CHIMNEY MASON. SHOULD YOU DECIDE TO BUILD A NEW

MASONRY CHIMNEY, CALL A QUALIFIED MASON AND BE SURE IT IS BUILT TO COMPLY WITH LOCAL

CODES, OR NFPA #211.

CHIMNEY HEIGHT