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H. operating instructions, Cl36d and cr36d installation instructions, General information – Hearth and Home Technologies CL36D User Manual

Page 25: Outside air, Flue damper

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12538 Rev D

CL36D AND CR36D INSTALLATION INSTRUCTIONS

Note:

Save and pass this instruction manual to subsequent home owners. The informa-

tion provided is intended to notify and warn them about making unsafe future modifications

such as the addition of shelves or the use of unauthorized parts and repairs.

WARNING!

DO NOT operate this fireplace with the flue

damper in the closed position. Combustion

products must vent up the chimney system to

prevent carbon monoxide poisoning, and to

prevent hot combustion gases from contacting

and overheating combustible surfaces. Failure

to operate this fireplace with the damper in the

open position may result in asphyxiation or a

structure fire.

CAUTION:

Fireplace operation does require air. Do not take

air from other fuel burning appliances which can

result in improper venting (smoking) or air dilu-

tion. Always provide adequate makeup air.

H. OPERATING INSTRUCTIONS

1. General Information

This fireplace is intended to operate as a

supplemental heat source for a single room. It is not

designed to function as a primary heat source for a

structure.
Fireplaces, as well as other woodburning appliances,

have been used safely for many years. It has been

our experience that most problems are caused by

improper installation and operation of the fireplace.

Make certain that installation and operation of the

fireplace system is in accordance with these

instructions.
It is extremely important that the fire be supervised

whenever the fireplace is in use. It is also

recommended that an annual inspection be

performed on the fireplace system to determine if the

flue system needs to be cleaned, or as in the case of

any appliance, if minor repairs are required to

maintain the system in top operating condition.
This factory built fireplace is intended for use with either

solid fuel (firewood) or a decorative gas appliance that

has been tested and listed to the Standard for

Decorative Gas Appliances for Installation in

Vented Fireplaces, ANSI Z21.60. When operating

your fireplace, the flue damper must be in the open

position.
This fireplace was not tested and listed for use with an

unvented gas log heater. Do not install an unvented

gas log heater in this fireplace and operate it with the

flue damper in the closed position unless the

unvented gas log heater has been specifically tested

and listed for use in this fireplace by Underwriters

Laboratories Inc.
Use of an unvented gas log heater in this factory

built fireplace may create a fire hazard that can

result in a structure fire.

2. Outside Air

A source of air (oxygen) is required in order for

combustion to take place. Whatever air is consumed

by the fire must be replaced through cracks around

windows, under doors, etc. Most newly constructed

houses or existing homes fitted with tightly sealed

doors and windows are relatively air tight. In this case,

an outside air source must be made available to feed

combustion air from outside the home.
A damper control handle allows the individual control

of the outside air inlet if your fireplace is equipped

with this option. Use of outside air for combustion is

highly recommended to conserve heated air within

the structure and to provide make up air to keep the

fireplace venting properly.
This fireplace will operate correctly only if adequate

ventilation is provided to allow proper draft to the

fireplace system. Hearth Technologies Inc. assumes

no responsibility for the improper performance of the

fireplace system caused by inadequate draft due to

environmental conditions, down drafts, tight sealing

construction of the structure, or mechanical

exhausting devices which create a negative air

pressure within the structure where the fireplace is

located.

3. Flue Damper

The flue damper must be in a full open position, and

is operated by moving the handle up toward the top

of the fireplace. Before lighting the fire, verify this by

looking up from the inside of the fireplace. Always

operate this fireplace with the damper fully open.

Please note: down drafts, obstructions, damaged or

poor (wet) fuels can cause smoke spillage.