Assemble the Chimney Sections | Hearth and Home Technologies ST42A

C. Assemble the Chimney Sections

Attach either a straight chimney section or an offset to the top of the ﬁ replace (depending on your installation require- ment). Chimney sections are locked together by pushing downward until the top section meets the stop bead on the lower section.

The inner ﬂ ue is placed to the inside of the ﬂ ue section below it. The outer casing is placed outside the outer casing of the chimney section below it. See Figure 5.4.

Figure 5.4 Assembling Chimney Sections

Note: Inner ﬂ ue and outer liner sections cannot be disas- sembled once locked together. Plan ahead to ensure the proper installation height is achieved with the selected chimney components.

WARNING

Fire Risk

Do NOT install substitute or damaged chimney components.

•MUST use chimney system described in this manual.

•NO OTHER chimney components may be used.

Substitute or damaged chimney components may impair safe operation.

Note: The ﬁ restop spacer MUST be nailed to the bottom of the ceiling joists EXCEPT when the space above is uninsulated and the attic insulation shield is not being used (see Figure 5.5). When the attic insulation shield is used the spacer may be above or below the joist of an insulated ceiling.

ROOM ABOVE (non-insulated ceiling)

Spacer from bottom

	ATTIC ABOVE (insulated ceiling)
Spacer from		When attic insulation
Spacer from		shield not used
top		shield not used
top

Note: Use same dimensional lumber for framing spacer and joists.

	A			B
Catalog #	in.	mm	in.		mm
FS538	17	432	17		432
FS540	17	432	26		660

Figure 5.5 Installing the Firestop Spacer

Note: You must provide support for the pipe during con- struction and check to be sure inadvertent loading has not dislodged the chimney section from the ﬁ replace or at any chimney joint.

D. Install the Firestop Spacers

•Mark and cut an opening in the ceiling for the spacer being used. See Figure 5.5.

•Frame the opening with the same size lumber used in the ceiling joists.

•Install the ﬁ restop spacer.

CAUTION

•Firestop spacers must be used at ceiling/ﬂ oor.

•Chase construction requires ﬁ restops at each ﬂ oor or every 10 ft (3.05 m) of clear space.

•Use same dimensional lumber as joists.

Firestop slows spread of fire and reduces cold air inﬁ ltration.

18	Heatilator • ST42A • 35038 Rev G • 02/05

ST42A specifications

Hearth and Home Technologies ST42A is a highly regarded product in the realm of home heating, known for its excellent combination of functionality, efficiency, and aesthetic appeal. This stylish gas fireplace offers the perfect blend of modern design and superior technology, making it an ideal choice for homeowners seeking both comfort and elegance.

One of the main features of the ST42A is its remarkable heating capacity. With a BTU output ranging from 26,000 to 36,000, it efficiently warms spaces, making it suitable for medium to large living areas. This gas fireplace is designed to deliver heat effectively while maximizing energy efficiency, allowing users to enjoy warmth without incurring excessive energy costs.

The ST42A comes equipped with an advanced electronic ignition system, ensuring reliable startup and operation. This system not only adds convenience but also enhances safety, as it minimizes the risk of gas leaks. The fireplace is designed to operate on natural gas or propane, offering flexibility to homeowners based on their fuel availability and preferences.

In terms of design, the ST42A boasts a contemporary look that fits seamlessly into a variety of interior styles. Its large viewing area, framed by a stylish surround, allows for an impressive flame presentation that serves as a focal point in any room. The variable flame height adjustment feature allows users to customize the ambiance and comfort level, further enhancing the overall experience.

One of the standout technologies in the ST42A is its unique heat distribution system. This feature ensures that warmth is circulated throughout the room, rather than being concentrated in one area, promoting an even temperature distribution. Additionally, the fireplace is equipped with optional blower kits that can enhance air circulation, further improving the efficiency of heat delivery.

Maintenance is another significant consideration with any heating appliance, and the ST42A simplifies this with accessible components and easy cleaning features. The ceramic glass front is designed to resist soot buildup, ensuring a clear view of the flames and reducing the need for frequent upkeep.

Overall, the Hearth and Home Technologies ST42A stands out as a premium choice for those looking to add warmth and style to their home. With its powerful heating capabilities, advanced technologies, and elegant design, it represents an investment in both comfort and aesthetic enhancement for any living space.

Hearth and Home Technologies ST42A Assemble the Chimney Sections, Install the Firestop Spacers

Models: ST42A