Fireplace Preparation - Monessen Hearth DLX18 Installation And Operating Instructions Manual

Unvented gas log heater or vented decorative appliance

Installation and operating instructions manual (36 pages)

Table of Contents

BEFORE FULLY INSTALLING THE UNIT:

• Turn OFF the gas supply to the fireplace or firebox.

• Seal any fresh air vents and/or ash clean-out doors located on the floor or wall of the fireplace. If left unsealed, drafting

may cause pilot outage or sooting. Use a heat resistant sealant. Do not seal the chimney flue damper.

INSTALLING VENTED APPLICATIONS

Manual and millivolt controlled gas logs may be installed as a vented decorative log set in compliance with ANSI Z21.60 and

National Fuel Gas Code, Section 6.6 Since, the gas logs are operated with the damper open, non-combustible material and

minimum mantel requirements do not apply.

BEFORE INSTALLING THE APPLIANCE:

• Turn off gas supply to fireplace or firebox.

• Have the fireplace floor and chimney professionally cleaned to remove ashes, soot, creosote or other obstructions. Have

this cleaning performed annually after installation.

• Seal any fresh air vents or ash clean-out doors located on floor or wall of fireplace. If not, drafting may cause pilot

outage or sooting. Use a heat-resistant sealant. Do not seal chimney flue damper.

Install and operate the appliance as directed in this

manual.

DAMPER STOP INSTALLATION:

A damper stop must be provided with the unit. Contact your

dealer to obtain one. The damper stop must be installed as

shown in Figure 13 to prevent full closure of the fireplace

damper blade and provide a minimum 29 square inch flue

opening.

14D2099

Before installing in a solid fuel

burning fireplace, The chimney flue

and firebox must be cleaned of soot,

creosote, ashes and loose paint by a

qualified chimney cleaner.

This appliance is for installation only in a solid fuel burning

fireplace (masonry fireplace or manufactured fireplace) with

a working flue and constructed of noncombustible material.

Exception: DO NOT install this applicance in a factory-built

fireplace that includes instructions stating it has not been

tested or should not be used with unvented gas logs.