Fireplace Preparation; Installing Vented Applications - Monessen Hearth DLY18 Installation And Operating Instructions Manual

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.
Before installing in a solid fuel burning fireplace, The chimney flue and fire-
box must be cleaned of soot, creosote, ashes and loose paint by a qualified
chimney cleaner.

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.
This appliance is for installation only in a solid fuel burning fireplace (ma-
sonry fireplace or manufactured fireplace) with a working flue and constructed
of noncombustible material.
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 10) to prevent full closure of the
fireplace damper blade and provide a mini-
mum 29 square inch flue opening.
Figure 10: Damper Stop Installation

FIREPLACE PREPARATION

Damper Stop
Damper
15