Fireplace Preparation - Monessen Hearth DST30 Installation And Operating Instructions Manual

Unvented gas log heater or vented decorative appliance

Installation and operating instructions manual (33 pages)

Table of Contents

BEFORE FULLY INSTALLING THE UNIT:

• Turn OFF the gas supply to the ﬁ replace or ﬁ rebox.

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

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

INSTALLING VENTED APPLICATIONS

Milli-volt 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 ﬁ replace (masonry

fireplace or manufactured fireplace) with a working flue and constructed of

noncombustible material.

Exception: DO NOT install this appliance in a factory-built ﬁ replace that includes

instructions stating that it has not been tested or should not be used with

unvented gas logs.

BEFORE INSTALLING THE APPLIANCE:

• Turn off gas supply to ﬁ replace or ﬁ rebox.

• Have the ﬁ replace ﬂ oor 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 ﬂ oor or wall of ﬁ replace. If not, drafting may cause pilot

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

Install and operate the appliance as directed in this manual.

DAMPER STOP INSTALLATION:

A damper stop must be provided with the unit when

used for vented applications. Contact your dealer to

obtain one. The damper stop must be installed as shown

in Figure 11 to prevent full closure of the ﬁ replace

damper blade and provide a minimum 29 square inch

ﬂ ue opening. For installation in the Commonwealth of

Massachusetts, see Note 27 on page 4.

Before installing in a solid fuel

burning ﬁ replace, The chimney ﬂ ue

and ﬁ rebox must be cleaned of soot,

creosote, ashes and loose paint by a

qualiﬁ ed chimney cleaner.